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Title: Laser bottom hole assembly

Abstract

There is provided for laser bottom hole assembly for providing a high power laser beam having greater than 5 kW of power for a laser mechanical drilling process to advance a borehole. This assembly utilizes a reverse Moineau motor type power section and provides a self-regulating system that addresses fluid flows relating to motive force, cooling and removal of cuttings.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Foro Energy, Inc. (Littleton, CO)
Sponsoring Org.:
USDOE
OSTI Identifier:
1117705
Patent Number(s):
8627901
Application Number:
12/896,021
Assignee:
Foro Energy, Inc. (Littleton, CO)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
AR0000044
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Oct 01
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Underwood, Lance D, Norton, Ryan J, McKay, Ryan P, Mesnard, David R, Fraze, Jason D, Zediker, Mark S, and Faircloth, Brian O. Laser bottom hole assembly. United States: N. p., 2014. Web.
Underwood, Lance D, Norton, Ryan J, McKay, Ryan P, Mesnard, David R, Fraze, Jason D, Zediker, Mark S, & Faircloth, Brian O. Laser bottom hole assembly. United States.
Underwood, Lance D, Norton, Ryan J, McKay, Ryan P, Mesnard, David R, Fraze, Jason D, Zediker, Mark S, and Faircloth, Brian O. Tue . "Laser bottom hole assembly". United States. https://www.osti.gov/servlets/purl/1117705.
@article{osti_1117705,
title = {Laser bottom hole assembly},
author = {Underwood, Lance D and Norton, Ryan J and McKay, Ryan P and Mesnard, David R and Fraze, Jason D and Zediker, Mark S and Faircloth, Brian O},
abstractNote = {There is provided for laser bottom hole assembly for providing a high power laser beam having greater than 5 kW of power for a laser mechanical drilling process to advance a borehole. This assembly utilizes a reverse Moineau motor type power section and provides a self-regulating system that addresses fluid flows relating to motive force, cooling and removal of cuttings.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 14 00:00:00 EST 2014},
month = {Tue Jan 14 00:00:00 EST 2014}
}

Works referenced in this record:

Rotary Tunneling Machine
patent, March 1909


Thermal Shock Drilling Bit
patent, April 1951


Flame Boring Apparatus
patent, April 1956


Laser Welding Maching
patent, May 1968


Well Perforating Apparatus and Method
patent, August 1969


Treatment of Solid Materials
patent, November 1970


Tunneling by Lasers
patent, December 1970


Thermal Insulating Tubing
patent, April 1971


High Pressure Jet-Grouting Method
patent, April 1974


Hand-Held Laser Instrumentation Device
patent, June 1974


Reverse Circulating Sub for Fluid Flow Systems
patent, July 1974


Laser Beam Drill
patent, March 1975


Combination laser beam and sonic drill
patent, May 1975


Rotary drill bit
patent, February 1976


Holographic instrument for measuring stress in a borehole wall
patent, June 1976


Optics module for borehole stress measuring instrument
patent, November 1976


Earth boring method employing high powered laser and alternate fluid pulses
patent, December 1976


Formation of load-bearing foundations by laser-beam irradiation of the soil
patent, April 1977


Conduit system
patent, May 1977


Subsea hydraulic choke
patent, September 1977


High-velocity jet digging method
patent, September 1977


Bit packer for dual tube drilling
patent, November 1977


In-situ laser retorting of oil shale
patent, December 1977


Earth boring apparatus employing high powered laser
patent, January 1978


Apparatus and method for laser cutting
patent, November 1978


Laser pile cutter
patent, April 1979


Fiber optic well logging means and method
patent, July 1979


Well logging system
patent, February 1980


Composite tubing product
patent, March 1980


Method and apparatus for perforating oil and gas wells
patent, April 1980


Well perforating apparatus and method
patent, October 1980


Method of manufacturing an optical fiber
patent, February 1981


Wellbore pressure testing method and apparatus
patent, February 1981


Flexible composite tube
patent, March 1981


Method of extracting liquid and gaseous fuel from oil shale and tar sand
patent, May 1981


Apparatus for perforating oil and gas wells
patent, August 1981


Insulated casing assembly
patent, June 1982


Flexible production tubing
patent, June 1982


In situ measurement of gas content in formation fluid
patent, February 1983


Flexible production tubing
patent, February 1983


Formation tester
patent, March 1983


High temperature insulated casing
patent, November 1983


Insulating tubular conduit apparatus
patent, April 1984


Concentric insulated tubing string
patent, July 1984


Concentric insulated tubing string
patent, October 1984


Hermetically sealed optical fiber
patent, March 1985


Armored cable containing a hermetically sealed tube incorporating an optical fiber
patent, June 1985


Concentric insulating conduit
patent, July 1985


Laser pipe welder/cutter
patent, August 1985


Method for installing cable using an inner duct
patent, January 1986


Conduit
patent, September 1987


Multiple pass optical rotary joint
patent, February 1988


Wellbore cleanout apparatus and method
patent, May 1988


Heat and radiation resistant optical fiber
patent, September 1988


Heat insulating tube
patent, December 1988


Well pumping method and apparatus
patent, May 1989


Implosion shaped charge perforator
patent, August 1989


Implosion shaped charge perforator
patent, August 1989


Fiber optic sensors
patent, May 1990


Microwave assisted hard rock cutting
patent, March 1991


Laser-enhanced oil correlation system
patent, September 1991


Rock melting excavation process
patent, April 1992


Undersea telecommunications cable having optical fibers in a tube
patent, June 1992


Lightweight optical fiber cable
patent, June 1992


Device for measuring reflectance and fluorescence of in-situ soil
patent, July 1992


Subsea well pressure monitor
patent, December 1992


Armored fiber optic cables
patent, May 1993


Coil tubing string and downhole generator
patent, February 1994


Coiled tubing system used for the evaluation of stimulation candidate wells
patent, October 1994


Methods of perforating and testing wells using coiled tubing
patent, October 1994


Underbalance jet pump drilling method
patent, October 1994


Spoolable coiled tubing completion system
patent, May 1995


Detonation system
patent, May 1995


Reeled tubing support for downhole equipment module
patent, May 1995


Spoolable flexible sliding sleeve
patent, February 1996


Laser diode/lens assembly
patent, March 1996


Method and apparatus for the injection of cable into coiled tubing
patent, April 1996


Measuring device and method in a hydrocarbon production well
patent, April 1996


Casingless down-hole for sealing an ablation volume and obtaining a sample for analysis
patent, October 1996


Improved coil tubing injector unit
patent, October 1996


Means for placing cable within coiled tubing
patent, November 1996


Fluid-actuated wellbore tool system
patent, November 1996


Apparatus for the injection of cable into coiled tubing
patent, February 1997


Laser diode/lens assembly
patent, March 1997


Fiber optic laser system and associated lasing method
patent, December 1997


Silicone oil-based drilling fluids
patent, January 1998


BOP with partially equalized ram shafts
patent, April 1998


Standoff laser induced-breakdown spectroscopy penetrometer system
patent, May 1998


Water laser machine tool
patent, June 1998


Wellbore tractor and method of moving an item through a wellbore
patent, August 1998


Composite coiled tubing apparatus and methods
patent, October 1998


Phased array Raman laser amplifier and operating method therefor
patent, November 1998


Fiber optic probe with integral optical filtering
patent, January 1999


Optical fiber cable for underwater use using terrestrial optical fiber cable
patent, April 1999


Portable electrohydraulic mining drill
patent, April 1999


Spoolable composite tubular member with energy conductors
patent, June 1999


Synchronous spectral line imaging methods and apparatus
patent, July 1999


Composite coiled tubing apparatus and methods
patent, August 1999


Submerged laser beam irradiation equipment
patent, August 1999


Fiber optic gyroscope coil lead dressing and method for forming the same
patent, October 1999


Spectroscopic probe with leak detection
patent, November 1999


Insulated and/or concentric coiled tubing
patent, January 2000


Fiber-optic spectroscopic probe with reduced background luminescence
patent, March 2000


Apparatus for completing a subterranean well and associated methods of using same
patent, May 2000


Fiber optic well logging cable
patent, May 2000


Composite coiled tubing apparatus and methods
patent, May 2000


Spoolable coiled tubing completion system
patent, June 2000


Apparatus for completing a subterranean well and associated methods of using same
patent, June 2000


Apparatus for completing a subterranean well and associated methods of using same
patent, July 2000


Linear aperture pseudospark switch
patent, August 2000


Apparatus for completing a subterranean well and associated methods of using same
patent, September 2000


Laser induced breakdown spectroscopy soil contamination probe
patent, November 2000


Modified formation testing apparatus and method
patent, December 2000


Method for determining the relative clay content of well core
patent, December 2000


Electrohydraulic pressure wave projectors
patent, April 2001


Respiratory suction catheter apparatus
patent, May 2001


Dynamically positioned, concentric riser, drilling method and apparatus
patent, August 2001


Method of and apparatus for subsurface exploration
patent, August 2001


Monitoring of downhole parameters and tools utilizing fiber optics
patent, August 2001


Internally profiled stator tube
patent, October 2001


Method of and probe for subsurface exploration
patent, November 2001


Deep ocean riser positioning system and method of running casing
patent, March 2002


Fiber optic tomographic imaging of borehole fluids
patent, March 2002


Optical fiber grating package
patent, March 2002


Pressure impulse telemetry apparatus and method
patent, May 2002


Formation cutting method and system
patent, May 2002


Marine riser
patent, June 2002


Nozzle system for laser beam cutting
patent, July 2002


Permanent optical sensor downhole fluid analysis systems
patent, August 2002


Monitoring fluid flow through a filter
patent, September 2002


Method and apparatus using coiled-in-coiled tubing
patent, December 2002


Optical fiber deployment system and cable
patent, May 2003


Bottomhole assembly and methods of use
patent, May 2003


Aluminum riser apparatus, system and method
patent, September 2003


Pipeline monitoring systems
patent, November 2003


Pressure impulse telemetry apparatus and method
patent, March 2004


Partial coil-in-coil tubing
patent, March 2004


System and technique for monitoring and managing the deployment of subsea equipment
patent, April 2004


Multi-parameter interferometric fiber optic sensor
patent, June 2004


Disconnect check valve mechanism for coiled tubing
patent, October 2004


Bottom hole assembly
patent, December 2004


Downhole sensing with fiber in exterior annulus
patent, January 2005


Laser liner creation apparatus and method
patent, February 2005


Raman spectroscopy crystallization analysis method
patent, March 2005


Laser boring method and system
patent, March 2005


Distributed flow properties wellbore measurement system
patent, April 2005


Method and apparatus for performing rapid isotopic analysis via laser spectroscopy
patent, May 2005


Use of cesium as a tracer in coring operations
patent, July 2005


Well system
patent, August 2005


Subterranean well pressure and temperature measurement
patent, October 2005


Method and apparatus for performing rapid isotopic analysis via laser spectroscopy
patent, November 2005


Providing a light cell in a wellbore
patent, December 2005


Downhole sensing with fiber in the formation
patent, December 2005


Downhole cutting mill
patent, January 2006


Inkjet ink having yellow dye mixture
patent, May 2006


Use of distributed temperature sensors during wellbore treatments
patent, June 2006


Apparatus for acoustic detection of particles in a flow using a fiber optic interferometer
patent, July 2006


Optical fibre means
patent, August 2006


Isolation assembly for coiled tubing
patent, November 2006


Dual wall drill string assembly
patent, November 2006


Optical fiber conveyance, telemetry, and/or actuation
patent, November 2006


Laser spectroscopy/chromatography drill bit and methods
patent, December 2006


Dual wall drill string assembly
patent, December 2006


Well system
patent, February 2007


Method and apparatus for spatial domain multiplexing in optical fiber communications
patent, February 2007


Downhole filter
patent, March 2007


Method and apparatus for obtaining a micro sample downhole
patent, May 2007


Imaging sensor optical system
patent, May 2007


Release tool for coiled tubing
patent, July 2007


Subsea intervention
patent, September 2007


Plasma channel drilling process
patent, September 2007


Method and system for reservoir characterization in connection with drilling operations
patent, March 2008


Off-axis rotary joint
patent, May 2008


Launch monitor
patent, July 2008


Method and apparatus for blow-out prevention in subsea drilling/completion systems
patent, July 2008


Pulsed electric rock drilling apparatus
patent, August 2008


Methods of using a laser to spall and drill holes in rocks
patent, August 2008


Fiber optic cable for use in harsh environments
patent, September 2008


High throughput reconfigurable data analysis system
patent, December 2008


Drilling, perforating and formation analysis
patent, February 2009


Methods of well stimulation during drilling operations
patent, March 2009


Two-channel, dual-mode, fiber optic rotary joint
patent, April 2009


Multi-channel, multi-spectrum imaging spectrometer
patent, April 2009


Portable electrocrushing drill
patent, May 2009


Method of drilling using pulsed electric drilling
patent, May 2009


Single-mode optical fiber
patent, September 2009


Coiled tubing swivel assembly
patent, October 2009


High strength-to-weight-ratio slickline and multiline cables
patent, October 2009


System and methods using fiber optics in coiled tubing
patent, November 2009


Fiber optic cable systems and methods to prevent hydrogen ingress
patent, January 2010


Composite spoolable tube
patent, January 2010


Method and apparatus for an advanced optical analyzer
patent, March 2010


High power optical isolator
patent, May 2010


High-temperature downhole devices
patent, May 2010


Intervention rod
patent, August 2010


Inlay cards and method for its manufacture
patent, September 2010


Downhole power source
patent, November 2010


Fiber laser system
patent, December 2010


Drilling, perforating and formation analysis
patent, May 2011


Methods useful for controlling fluid loss in subterranean formations
patent, January 2012


System and method for drilling a borehole
patent, February 2012


Fiber optic cables coupling and methods therefor
patent, May 2012


Open water recoverable drilling protector
patent, December 2012


Composite coiled tubing with embedded fiber optic sensors
patent-application, January 2002


Multiplexed distribution of optical power
patent-application, April 2002


System and technique for monitoring and managing the deployment of subsea equipment
patent-application, December 2002


Dry geothermal drilling and recovery system
patent-application, January 2003


Optical fiber having temperature independent optical characteristics
patent-application, March 2003


Mounts for blowout preventer bonnets
patent-application, May 2003


Downhole lens assembly for use with high power lasers for earth boring
patent-application, July 2003


Subsea production system
patent-application, August 2003


Optical fiber cable
patent-application, August 2003


Method and apparatus for performing rapid isotopic analysis via laser spectroscopy
patent-application, August 2003


Laser boring method and system
patent-application, December 2003


Method and apparatus for determining flow rates
patent-application, January 2004


Subterranean well pressure and temperature measurement
patent-application, January 2004


Universal downhole tool control apparatus and methods
patent-application, February 2004


Apparatus for a coustic detection of particles in a flow using a fibre optic interferometer
patent-application, February 2004


High impact waterjet nozzle
patent-application, April 2004


Anisotropic distributed feedback fiber laser sensor
patent-application, May 2004


Downhole cutting mill
patent-application, June 2004


Downhole high resolution NMR spectroscopy with polarization enhancement
patent-application, June 2004


Use of Distributed Temperature Sensors During Wellbore Treatments
patent-application, July 2004


Laser liner creation apparatus and method
patent-application, October 2004


Laser wellbore completion apparatus and method
patent-application, October 2004


High throughput reconfigurable data analysis system
patent-application, October 2004


Imaging sensor optical system
patent-application, October 2004


Method and apparatus for an advanced optical analyzer
patent-application, November 2004


Determination of thermal properties of a formation
patent-application, December 2004


Fiber optic sensing systems and methods
patent-application, December 2004


Fiber optics laser perforation tool
patent-application, December 2004


Method for preparing and processing a sample for intensive analysis
patent-application, January 2005


Optical fiber conveyance, telemetry, and/or actuation
patent-application, February 2005


Well system
patent-application, June 2005


Dual property hydraulic configuration
patent-application, June 2005


Methods of well stimulation during drilling operations
patent-application, October 2005


Method and system for reservoir characterization in connection with drilling operations
patent-application, November 2005


System and methods using fiber optics in coiled tubing
patent-application, December 2005


Launch monitor
patent-application, December 2005


Laser spectroscopy/chromatography drill bit and methods
patent-application, December 2005


Launch monitor
patent-application, December 2005


Launch monitor
patent-application, December 2005


Launch monitor
patent-application, December 2005


Launch monitor
patent-application, December 2005


Multi-channel, multi-spectrum imaging spectrometer
patent-application, February 2006


Radiation monitoring apparatus, systems, and methods
patent-application, March 2006


Process and arrangement for superimposing ray bundles
patent-application, March 2006


Drilling, perforating and formation analysis
patent-application, May 2006


Well perforating for increased production
patent-application, June 2006


Modular drilling apparatus with power and/or data transmission
patent-application, June 2006


Methods useful for controlling fluid loss in subterranean formations
patent-application, June 2006


Apparatus for providing optical radiation
patent-application, September 2006


Drilling tool for drilling web of channels for hydrocarbon recovery
patent-application, September 2006


Methods of using a laser to perforate composite structures of steel casing, cement and rocks
patent-application, October 2006


Methods of using a laser to spall and drill holes in rocks
patent-application, October 2006


Off-axis rotary joint
patent-application, November 2006


Methods useful for controlling fluid loss during sand control operations
patent-application, November 2006


Method useful for controlling fluid loss in subterranean formations
patent-application, December 2006


Fiber optic sensor capable of using optical power to sense a parameter
patent-application, December 2006


Method and apparatus for a downhole excavation in a wellbore
patent-application, February 2007


Apparatus and method for estimating filtrate contamination in a formation fluid
patent-application, April 2007


Method For Monitoring Fluid Properties
patent-application, June 2007


Laser machining of a workpiece
patent-application, August 2007


Two-channel, dual-mode, fiber optic rotary joint
patent-application, September 2007


Well Servicing Methods And Systems
patent-application, October 2007


Borehole Imaging
patent-application, October 2007


Raman Amplifier, Optical Repeater, And Raman Amplification Method
patent-application, October 2007


Methane extraction method and apparatus using high-energy diode lasers or diode-pumped solid state lasers
patent-application, November 2007


Method and Device for Generating a Jet of Fluid for Material Processing and Fluid Nozzle for Use in Said Device
patent-application, December 2007


Single-mode Optical Fiber
patent-application, December 2007


Method For Removing Oilfield Mineral Scale From Pipes And Tubing
patent-application, January 2008


Coiled Tubing Tractor Assembly
patent-application, March 2008


Method and System for Forming a Non-Circular Borehole
patent-application, April 2008


Downhole power source
patent-application, June 2008


Microstructured Optical Fiber
patent-application, June 2008


Laser Diode Array Downhole Spectrometer
patent-application, July 2008


Method and Apparatus for Performing Laser Operations Downhole
patent-application, July 2008


High power optical apparatus employing large-mode-area, multimode, gain-producing optical fibers
patent-application, July 2008


System and Method for Drilling a Borehole
patent-application, October 2008


Sensing System Using Optical Fiber Suited to High Temperatures
patent-application, November 2008


System And Method For Cutting A Web To Provide A Covering
patent-application, February 2009


System And Method For Long Term Power In Well Applications
patent-application, February 2009


Tool For Reporting The Status And Drill-Down Of A Control Application In An Automated Manufacturing Environment
patent-application, February 2009


Apparatus and Methods For Continuous Coring
patent-application, March 2009


Sensors For Estimating Properties Of A Core
patent-application, April 2009


Method and device for excavating submerged stratum
patent-application, May 2009


Drilling, Perforating And Formation Analysis
patent-application, May 2009


Apparatus and Methods for Continuous Tomography of Cores
patent-application, June 2009


Purging Of Fiber Optic Conduits In Subterranean Wells
patent-application, July 2009


Fiber Optic Cable Having a Dry Insert
patent-application, July 2009


Inverted Drainholes
patent-application, August 2009


Methods and Systems for Using a Laser to Clean Hydrocarbon Transfer Conduits
patent-application, August 2009


Intervention Rod
patent-application, October 2009


Apparatus and Method for Removing Subsea Structures
patent-application, October 2009


System And Method For Deploying Optical Fiber
patent-application, October 2009


Method And Apparatus For A Downhole Excavation In A Wellbore
patent-application, November 2009


Single-Mode Optical Fiber Having Reduced Bending Losses
patent-application, November 2009


Optical Contacting Enhanced By Hydroxide Ions In A Non-Aqueous Solution
patent-application, December 2009


Reducing Back-Reflections in Laser Processing Systems
patent-application, December 2009


Dry Fiber Optic Cables and Assemblies
patent-application, December 2009


Apparatus and Method for Electrocrushing Rock
patent-application, January 2010


Method of Processing Rock with Laser and Apparatus for the Same
patent-application, January 2010


Downhole Cables with Both Fiber and Copper Elements
patent-application, January 2010


Downhole Telemetry System Using an Optically Transmissive Fluid Media and Method for Use of Same
patent-application, January 2010


System and Methods Using Fiber Optics in Coiled Tubing
patent-application, January 2010


Methods and Systems to Activate Downhole Tools with Light
patent-application, February 2010


Method and System for Forming a Non-Circular Borehole
patent-application, February 2010


Methods and Apparatus for Removal and Control of Material in Laser Drilling of a Borehole
patent-application, February 2010


Method and System for Advancement of a Borehole Using a High Power Laser
patent-application, February 2010


Apparatus for Advancing a Wellbore Using High Power Laser Energy
patent-application, February 2010


Methods and Apparatus for Delivering High Power Laser Energy to a Surface
patent-application, February 2010


Method and Apparatus for Delivering High Power Laser Energy Over Long Distances
patent-application, February 2010


Laser Assisted Drilling
patent-application, April 2010


Optical Coiled Tubing Log Assembly
patent-application, April 2010


Coiled Tubing Gamma Ray Detector
patent-application, April 2010


Methods and Apparatus for Wellbore Enhancement
patent-application, April 2010


Methods and Apparatus for Thermal Drilling
patent-application, April 2010


Methods and Apparatus for Thermal Drilling
patent-application, April 2010


Fiber Optic Slickline and Tools
patent-application, June 2010


Method Of And System For Hydrocarbon Recovery
patent-application, July 2010


Modular Well Tool System
patent-application, July 2010


Process And Apparatus For Subterranean Drilling
patent-application, July 2010


Laser-Based Material Processing Methods And Systems
patent-application, August 2010


Methods and Apparatus for Mechanical and Thermal Drilling
patent-application, September 2010


Water Jet Guided Laser Device Having Light Guide Pipe
patent-application, September 2010


Method For Removing Hydrate Plug From A Flowline
patent-application, September 2010


Wellbore Laser Operations
patent-application, December 2010


Methods And Apparatus For Subsea Well Intervention And Subsea Wellhead Retrieval
patent-application, December 2010


Linear Multi-Cylinder Stirling Cycle Machine
patent-application, February 2011


Carbon Capture And Storage
patent-application, February 2011


Utilizing Salts For Carbon Capture And Storage
patent-application, February 2011


Dissolvable Bridge Plug
patent-application, March 2011


Formation of Fractures Within Horizontal Well
patent-application, March 2011


System and Method for Drilling and Competing Lateral Boreholes
patent-application, April 2011


Downhole Tool Delivery System With Self Activating Perforation Gun
patent-application, June 2011


Retrieval Method For Opposed Slip Type Packers
patent-application, June 2011


Open-Hole Wellbore Lining
patent-application, July 2011


Bitless Drilling System
patent-application, July 2011


Method and System for Forming a Non-Circular Borehole
patent-application, July 2011


Method And System For Treating A Subterranean Formation Using Diversion
patent-application, August 2011


In-Pipe Work Device
patent-application, August 2011


Transmission of Light Through Light Absorbing Medium
patent-application, August 2011


Method and Device for Fusion Drilling
patent-application, September 2011


System and Method for Deploying Optical Fiber
patent-application, October 2011


Latching Configuration for a Microtunneling Apparatus
patent-application, November 2011


System and Method for Drilling Lateral Boreholes
patent-application, November 2011


Device for Performing Deep Drillings and Method of Performing Deep Drillings
patent-application, December 2011


Blowout Preventer Monitoring System and Method of Using Same
patent-application, January 2012


Small Core Generation and Analysis At-Bit as LWD Tool
patent-application, January 2012


Small Core Generation and Analysis At-Bit as LWD Tool
patent-application, January 2012


Optical Fiber Configurations for Transmission of Laser Energy Over Great Distances
patent-application, January 2012


Methods Useful for Controlling Fluid Loss in Subterranean Formations
patent-application, March 2012


Upgoing Drainholes for Reducing Liquid-Loading in Gas Wells
patent-application, March 2012


Two-Phase Isolation Methods and Systems for Controlled Drilling
patent-application, March 2012


Systems and Conveyance Structures for High Power Long Distance Laser Transmission
patent-application, March 2012


Guidance System for a Mining Machine
patent-application, March 2012


Fluid Laser Jets, Cutting Heads, Tools and Methods of Use
patent-application, March 2012


System and Method for Drilling Borehole
patent-application, May 2012


Equipment and Method for Reinforcing a Borehole of a Well While Drilling
patent-application, May 2012


Method and Apparatus for Wellbore Perforation
patent-application, May 2012


Purging of Fiber Optic Conduits in Subterranean Wells
patent-application, May 2012


Laser Assisted Riser Disconnect and Method of Use
patent-application, August 2012


Laser Assisted Blowout Preventer and Methods of Use
patent-application, August 2012


Shear Laser Module and Method of Retrofitting and Use
patent-application, August 2012


Control System For High Power Laser Drilling Workover And Completion Unit
patent-application, October 2012


High Power Laser-Mechanical Drilling Bit and Methods of Use
patent-application, October 2012


High Power Laser Pipeline Tool and Methods of Use
patent-application, October 2012


Method of High Power Laser-Mechanical Drilling
patent-application, October 2012


High Power Laser Photo-Conversion Assemblies, Apparatuses and Methods of Use
patent-application, October 2012


Electric Motor for Laser-Mechanical Drilling
patent-application, October 2012


Long Distance High Power Optical Laser Fiber Break Detection And Continuity Monitoring Systems And Methods
patent-application, November 2012


Optics Assembly For High Power Laser Tools
patent-application, November 2012


Rugged Passively Cooled High Power Laser Fiber Optic Connectors and Methods of Use
patent-application, January 2013


Effect of temperature and pressure on the thermal conductivity of sandstone
journal, September 2009


The effect of interaction time and saturation of rock on specific energy in ND:YAG laser perforating
journal, February 2011


Collapse and rebound of a laser-induced cavitation bubble
journal, October 2001


The porosity and engineering properties of vesicular basalt in Saudi Arabia
journal, October 1999


Prevention of Nozzle Wear in Abrasive Water Suspension Jets (AWSJ) Using Porous Lubricated Nozzles
journal, January 2003


The Äspö Pillar Stability Experiment: Part II—Rock mass response to coupled excavation-induced and thermal-induced stresses
journal, July 2009


A new approach to quantification of metamorphism using ultra-small and small angle neutron scattering
journal, December 2009


A multiaxial stress criterion for short- and long-term strength of isotropic rock media
journal, December 2000


Porosity dependence of the elastic modulus of lithophysae-rich tuff: numerical and experimental investigations
journal, September 2003


Simulation of the coupled thermal optical effects for liquid immersion micro-/nano-lithography
conference, May 2004


Innovation in Wellbore Perforation Using High-Power Laser
conference, November 2005


Prediction of compressive and tensile strength of limestone via genetic programming
journal, July 2008


Demonstration of the Power of Inter-Disciplinary Integration to Beat Field Development Challenges in a Complex Brown Field - South Oman
conference, January 2010


Spall damage modelling and dynamic fracture specificities of ceramics
journal, July 1992


The combined influence of mineralogical, hygric and thermal properties on the durability of porous building stones
journal, August 2008


Mechanism of brittle fracture of rock: Part I—theory of the fracture process
journal, October 1967


Analysis of compressive fracture in rock using statistical techniques: Part I. A non-linear rule-based model
journal, October 1998


All-in-quartz optics for low focal shifts
conference, February 2011


Bend loss in large core multimode optical fiber beam delivery systems
journal, January 1991


Development, testing and track record of fiber-optic, wet-mate, connectors
conference, January 2003


Dynamics of laser-induced cavitation bubbles near an elastic boundary
journal, April 2001


Rock Failure Under Dynamic Loading Conditions
journal, March 1963


Modeling Laser-Spallation Rock Drilling
journal, February 2006


Drilling a Hole in Granite Submerged in Water By Use of CO<sub>2</sub> Laser
journal, February 2010


Strength of glass from Hertzian line contact
conference, September 2011


Rock Cutting By Laser
conference, April 2013


Deepwater Drilling Riser System
journal, August 1986


Characterization of the Austin Chalk Producing Trend
conference, January 1986


Limitations on lightwave communications imposed by optical-fiber nonlinearities
journal, January 1990


Rock Properties of Berea Sandstone, Baker Dolomite, and Indiana Limestone
conference, January 1991


A damage model for concrete beams in compression
journal, March 2007


High-Power Slim-Hole Drilling System
conference, January 1995


Case History of the University Block 9 (Wolfcamp) FieldA Gas-Water Injection Secondary Recovery Project
journal, December 1970


Coiled Tubing Deployed ESPs Utilizing Internally Installed Power Cable - A Project Update
conference, January 1997


The static fatigue of brittle rock under uniaxial compression
journal, February 1974


Linear thermal expansion of granitic rocks: influence of apparent porosity, grain size and quartz content
journal, May 2004


Simulation of bulk-absorption thermal lensing in transmissive optics of gravitational waves detectors
journal, October 2003


Some mechanisms of microcrack growth and interaction in compressive rock failure
journal, June 1981


Flow structure and optical beam propagation in high-Reynolds-number gas-phase shear layers and jets
journal, April 2001


PDC Bit Selection Method Through the Analysis of Past Bit Performances
conference, October 1990


Porosity-permeability relationships in interlayered limestone-dolostone reservoirs
journal, January 2006


Wear characteristics of PDC pin and hybrid core bits in rock drilling
journal, September 1995


PDC Bit Selection Through Cost Prediction Estimates Using Crossplots and Sonic Log Data
conference, January 1993


Separating Bit and Lithology Effects from Drilling Mechanics Data
conference, January 1988


Peak-power limits on fiber amplifiers imposed by self-focusing
journal, January 2006


Spectral Gamma-Ray Logging in the Texas Austin Chalk Trend
journal, March 1980


A simple crack-extension criterion for time-dependent spallation
journal, April 1971


Natural fractures in the Barnett Shale and their importance for hydraulic fracture treatments
journal, April 2007


Fluorescent dye penetrants applied to rock fractures
journal, March 1968


Multilevel (Hierarchical) Modeling: What It Can and Cannot Do
journal, August 2006


PDC Bits: All Comes From the Cutter/Rock Interaction
conference, February 2006


High-power All-Fiber components: the missing link for high-power fiber lasers
conference, June 2004


Comparison of Specific Energy Between Drilling With High Power Lasers and Other Drilling Methods
conference, October 2002


StarWars Laser Technology Applied to Drilling and Completing Gas Wells
conference, January 1998


Crack Arrest and Multiple Cracking in Glass Through the Use of Designed Residual Stress Profiles
journal, February 1999


Laboratory Measurement and Correction of Thermal Properties for Application to the Rock Mass
journal, November 2005


Chebyshev rational spectral and pseudospectral methods on a semi-infinite interval
journal, January 2001

  • Guo, Ben-yu; Shen, Jie; Wang, Zhong-qing
  • International Journal for Numerical Methods in Engineering, Vol. 53, Issue 1, p. 65-84
  • https://doi.org/10.1002/nme.392

Stress resistance parameters of brittle solids under laser/plasma pulse heating
journal, September 2000


Rock albedo and monitoring of thermal conditions in respect of weathering: some expected and some unexpected results
journal, June 2005


Shielding properties of laser-induced breakdown in water for pulse durations from 5 ns to 125 fs
journal, January 1997


Drag - Bit Model Including Wear
conference, April 1994


A Drilling Rate Model for Roller Cone Bits and Its Application
conference, January 2010


Reservoir Characterization of the Frontier Tight Gas Sand, Green River Basin, Wyoming
conference, January 1991


Numerical simulation with experimental verification of the fracture behavior in granite under confining pressures based on the tension-softening model
journal, February 1993


Waterjet-assisted rock cutting systems — the present state of the art
journal, July 1985


Simultaneous Velocity and Concentration Measurements of a Turbulent Jet Mixing Flow
journal, October 2002


A dynamic damage growth model for uniaxial compressive response of rock aggregates
journal, May 2002


Intrinsic Length Scales in Tool-Rock Interaction
journal, January 2008


Mixed Mode Cracking in Layered Materials
book, January 1991


Study on rock-drilling using PDC bits for the prediction of torque and rate of penetration
journal, January 2009


Development of underwater laser cutting technique for steel and zircaloy for nuclear applications
journal, December 2010


Leaky Modes in Weakly Guiding Fiber Acoustic Waveguides
journal, November 1986


Rock excavation with laser assistance
journal, July 1976


Semianalytical Productivity Models for Perforated Completions
journal, February 1991


A model for non-linear rock deformation under compression due to sub-critical crack growth
journal, November 1991


Prediction of thermal conductivity of rocks by soft computing
journal, May 2010


Measurement of the refractive index of liquids at 1.3 and 1.5 micron using a fibre optic Fresnel ratio meter
journal, July 2004


Flow Visualization and Characteristics of a Coaxial Jet with a Tabbed Annular Nozzle
journal, January 2006


Design concept for optical fibers with enhanced SBS threshold
journal, January 2005


Observation of hole burning in spectrum of SBS in optical fibres under CW monochromatic laser excitation
conference, January 1999

  • Kovalev, V. I.; Harrison, R. G.
  • 1999 IEEE LEOS Annual Meeting Conference Proceedings. LEOS'99. 12th Annual Meeting. IEEE Lasers and Electro-Optics Society 1999 Annual Meeting (Cat. No.99CH37009)
  • https://doi.org/10.1109/LEOS.1999.813474

Simulating and Designing Brillouin Gain Spectrum in Single-Mode Fibers
journal, February 2004


A micromechanical damage model for concrete
journal, January 1986


Microcracks in rocks: A review
journal, December 1983


Experiments with rock: Remarks on strength and stability issues
journal, June 2007


PDC Bit Dynamics
conference, January 1992


High-Power Yb3+-Doped Phosphate Fiber Amplifier
journal, January 2009


Hydraulic fracturing in a sedimentary geothermal reservoir: Results and implications
journal, October 2005


The influence of temperature dependent properties of thermal rock fragmentation
journal, August 1975


Experimental investigation on the breakage of hard rock by the PDC cutters with combined action modes
journal, April 2001


The dynamic strength and fracture properties of dresser basalt
journal, May 1974


Continuous damage model for load-response estimation of concrete
journal, May 1980


Damage model for brittle elastic solids with unequal tensile and compressive strengths
journal, November 1994


Characterization of Diagenetically Altered Carbonate Reservoirs, South Cowden Grayburg Reservoir, West Texas
conference, October 1996


Travis Peak Core Permeability and Porosity Relationships at Reservoir Stress
journal, September 1991


Specific Ion Binding to Macromolecules:  Effects of Hydrophobicity and Ion Pairing
journal, April 2008


EOR Field Experiences in Carbonate Reservoirs in the United States
journal, December 2007

  • Manrique, Eduardo Jose; Muci, Viviana Eugenia; Gurfinkel, Mariano E.
  • SPE Reservoir Evaluation & Engineering, Vol. 10, Issue 6, p. 667-686
  • https://doi.org/10.2118/100063-PA

Thermophysical Properties of Porous Sandstones: Measurements and Comparative Study of Some Representative Thermal Conductivity Models
journal, September 2005


Curvature loss formula for optical fibers
journal, January 1976


Seventeenth Canadian Geotechnical Colloquium: The effect of cohesion loss and stress path on brittle rock strength
journal, October 1997


Laboratory Testing of High-Pressure, High-Speed PDC Bits
conference, April 2013


Glass fibers for stimulated Brillouin scattering and phase conjugation
journal, February 2007


Theory of fiber-optic, evanescent-wave spectroscopy and sensors
journal, January 1996


Experimental study relating thermal conductivity to thermal piercing of rocks
journal, May 1968


A noninvasive method for measuring the velocity of diffuse hydrothermal flow by tracking moving refractive index anomalies
journal, October 2010


Growth and structures of surface disturbances of a round liquid jet in a coaxial airflow
journal, April 2004


Microporosity in micritic limestones: a review
journal, July 1989


Investigation of thermal properties of some basalt samples in Egypt
journal, January 2004


Experimental Study of Kilowatt-Average-Power Faraday Isolators
conference, January 2007


Effect of Sampling Geometry on Elemental Emissions in Laser-Induced Breakdown Spectroscopy
journal, December 1996


Effective Medium Theory of the Porosity Dependence of Bulk Moduli
journal, May 2001


The effect of temperature on the strength at high confining pressure of granodiorite containing free and chemically-bound water
journal, January 1976


Tutorial on maximum likelihood estimation
journal, February 2003


Visualization for heat and mass transport phenomena in supercritical artificial air
journal, August 2005


Study of subcritical crack growth in andesite using the Double Torsion test
journal, June 2005


Optical Isolator for Unpolarized Laser Radiation at Multi-Kilowatt Average Power
conference, January 2006


Brillouin gain spectrum characterization in single-mode optical fibers
journal, January 1997


Fundamental mechanisms of cutting front formation in laser cutting
conference, September 1994


Thermal expansion of silicon carbide materials
journal, June 1994


Correlation of Yield Strength and Tensile Strength with Hardness for Steels
journal, April 2008


Formation Evaluation With Logs In The Deep Anadarko Basin
conference, September 1972


Porosity dependence of ultrasonic velocity and elastic modulus in sintered uranium dioxide — a discussion
journal, April 1986


Lasers: The Next Bit
conference, January 2006


Cutting thin sheet metal with a water jet guided laser using various cutting distances, feed speeds and angles of incidence
journal, April 2006


Simulating stress corrosion with a bonded-particle model for rock
journal, July 2007


On the Analysis of Short-Pulse Laser Heating of Metals Using the Dual Phase Lag Heat Conduction Model
journal, January 2009


A study of progressive failure of rock under cyclic loading by ultrasonic and AE monitoring techniques
journal, January 1992


On the stability of dilatant hardening for saturated rock masses
journal, April 1975


Thermal expansion behavior of igneous rocks
journal, October 1974


Comparative Economics Of Deep Drilling In Anadarko Basin
conference, April 2013


Generalized Hermite Polynomials and the Heat Equation for Dunkl Operators
journal, April 1998


Fracture Mechanics Applications To Drilling And Blasting
journal, November 1997


Dynamic tensile-failure-induced velocity deficits in rock
journal, February 1991


An algorithm and a modular subroutine for the CAP model
journal, April 1979


Formation Evaluation From Logging on Cuttings
journal, June 1998


Thermal lensing compensation optics for high power lasers
conference, February 2011


Waveform Cross-Correlation-Based Differential Travel-Time Measurements at the Northern California Seismic Network
journal, December 2005


Dynamics of femtosecond laser-induced breakdown in water from femtoseconds to microseconds
journal, January 2002


SBS threshold of a fiber with a Brillouin frequency shift distribution
journal, January 1996


Prediction of thermal conductivity of rock through physico-mechanical properties
journal, January 2007


Cantilever Drilling - Ushering a New Genre of Drilling
conference, October 2003


Rock Types, Depositional History, and Diagenetic Effects, Ivishak Reservoir, Prudhoe Bay Field
journal, February 1997


Pore Geometry in High- and Low-Permeability Sandstones, Travis Peak Formation, East Texas
journal, December 1990


Cavitation inception in quiescent and co-flow nozzle jets
journal, October 2010


Numerical studies of the influence of microstructure on rock failure in uniaxial compression — Part I: effect of heterogeneity
journal, June 2000


Brillouin amplification in phase coherent transfer of optical frequencies over 480 km fiber
journal, January 2010


Modeling inelastic deformation: viscolelasticity, plasticity, fracture
conference, January 1988

  • Terzopoulos, Demetri; Fleischer, Kurt
  • Proceedings of the 15th annual conference on Computer graphics and interactive techniques - SIGGRAPH '88
  • https://doi.org/10.1145/54852.378522

A criterion for the time dependence of dynamic fracture
journal, December 1968


The ALL Electric BHA: Recent Developments toward an Intelligent Coiled-Tubing Drilling System
conference, January 1999


An experimental investigation of factors influencing compressional‐ and shear‐wave velocities and attenuations in tight gas sandstones
journal, January 1994


Fiber optic distributed sensing systems for harsh aerospace environments
conference, July 1999


Stress-strain relationship for empirical equations of creep in rocks
journal, March 1972


Dependence of ceramic fracture properties on porosity
journal, January 1993


The microstructures of perthitic alkali feldspars revealed by hydrofluoric acid etching
journal, April 1994


Roller-Bit Penetration Rate Response as a Function of Rock Properties and Well Depth
conference, October 1986


Characterization of the melt removal rate in laser cutting of thick-section stainless steel
journal, May 2010


Inert gas cutting of thick-section stainless steel and medium-section aluminum using a high power fiber laser
journal, August 2009


Laser power requirement for cutting thick-section steel and effects of processing parameters on mild steel cut quality
journal, May 2011

  • Wandera, C.; Kujanpää, V.; Salminen, A.
  • Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, Vol. 225, Issue 5, p. 651-661
  • https://doi.org/10.1177/09544054JEM1971

Optimization of parameters for fibre laser cutting of a 10 mm stainless steel plate
journal, May 2011

  • Wandera, C.; Kujanpää, V.
  • Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, Vol. 225, Issue 5, p. 641-649
  • https://doi.org/10.1177/2041297510394078

Particle modeling simulation of thermal effects on ore breakage
journal, October 2008


Laboratory Drilling Performance of PDC Bits
journal, June 1988


Rock Matrix Properties of the Ratcliffe Interval (Madison Limestone) Flat Lake Field, Montana
conference, April 2013


Experimental measurement of surface temperatures during flame-jet induced thermal spallation
journal, January 1993


Roller Bit Model With Rock Ductility and Cone Offset
conference, September 1987


The effects of thermal softening and heat conduction on the dynamic growth of voids
journal, August 2003


The Constrained Interpolation Profile Method for Multiphase Analysis
journal, May 2001


Detection of Metals in the Environment Using a Portable Laser-Induced Breakdown Spectroscopy Instrument
journal, February 1996


Underwater Laser Welding by 4 kW CW YAG Laser
journal, October 2001


Determination of the thermal conductivity from physico-mechanical properties
journal, February 2008


An empirical relationship between thermal conductivity and elastic wave velocities in sandstone
journal, August 1993


Energy from Abandoned Oil and Gas Reservoirs
conference, January 2008


Faraday Rotators With Short Magneto-Optical Elements for 50-kW Laser Power
journal, June 2007


Analysis of stimulated Brillouin scattering in multi-mode fiber by numerical solution
journal, May 2003


High-Power ZBLAN Glass Fiber Lasers: Review and Prospect
journal, January 2010


Determinants of House Prices: A Quantile Regression Approach
journal, July 2007


Jet Impingement Heat Transfer: Physics, Correlations, and Numerical Modeling
book, January 2006


Simulation of dynamic response of granite: A numerical approach of shock-induced damage beneath impact craters
journal, December 2006


Dynamic Vickers indentation of brittle materials
journal, April 2000


The failure of brittle solids containing small cracks under compressive stress states
journal, March 1986


The Schmidt hammer in rock material characterization
journal, September 2005


On the relationship between the parameters of Paris' law for fatigue crack growth in aluminium alloys
journal, December 1977


Spectral signatures and optic coefficients of surface and reservoir rocks at COIL, CO 2 , and Nd:YAG laser wavelengths
conference, June 2004

  • Graves, Ramona M.; Bailo, El Tahir
  • XXXV Annual Symposium on Optical Materials for High Power Lasers: Boulder Damage Symposium, SPIE Proceedings
  • https://doi.org/10.1117/12.524568

GEODYN: A Geological Formation/Drillstring Dynamics Computer Program
conference, April 2013


Well Perforation Using High-Power Lasers
conference, October 2003


Micro-scratch evaluation of rock types—a means to comprehend rock drill wear
journal, February 2004


Temperature Profile in Semi-infinite Body With Exponential Source and Convective Boundary Condition
journal, January 1990


Improved Optimisation of Bit Selection Using Mathematically Modelled Bit Performance Indices
conference, January 2006


Successful Drilling of Basalt in a West of Shetland Deepwater Discovery
conference, September 2005


Development of a new direct test method for estimating cutter life, based on the Sievers’ J miniature drill test
journal, January 2007


Acousto-ultrasonic study of thermal shock damage in castable refractory
journal, February 1991


Correlation between Schmidt hardness, uniaxial compressive strength and Young’s modulus for andesites, basalts and tuffs
journal, April 2004


Stimulated Brillouin scattering in multimode fibers for optical phase conjugation
journal, July 2002


Vickers and Knoop hardness of electron beam deposited ZrC and HfC thin films on titanium
journal, April 2006


Rock removal using high-power lasers for petroleum exploitation purposes
conference, September 2002


Analysis of Efficient High-Power Fiber Lasers for Well Perforation
conference, January 2004


Effect of Downhole Pressure Conditions on High-Power Laser Perforation
conference, October 2005


Laser Drilling: Determination of Energy Required to Remove Rock
conference, October 2001


The influence of residual stresses on rock hardness
journal, May 1974


The role of thermal stress fatigue in the breakdown of rock in cold regions
journal, December 1999


Cutting Efficiency of a Single PDC Cutter on Hard Rock
journal, June 2009


The influence of steam pressure on thermal spalling of sedimentary rock: Theory and experiments
journal, January 1998


Dominant rock properties affecting the penetration rate of percussive drills
journal, July 2003


PDC Drill Bit Design and Field Application Evolution
journal, March 1988


Knowledge Selection for Laser Drilling in the Oil and Gas Industry
conference, January 2005

  • Ketata, C.; Satish, M. G.; Islam, M. R.
  • International Conference on Computational Intelligence for Modelling, Control and Automation and International Conference on Intelligent Agents, Web Technologies and Internet Commerce (CIMCA-IAWTIC'06)
  • https://doi.org/10.1109/CIMCA.2005.1631295

Laser heating of sheet metal and thermal stress development
journal, November 2004


CO2 laser–plume interaction in materials processing
journal, January 2001


Coatings with intrinsic stress profile: Refined creep analysis of (Ti,Al)N and cracking due to cyclic laser heating
journal, February 2006


Drilling a 2-inch in Diameter Hole in Granites Submerged in Water by CO2 Lasers
conference, January 2009


A fatigue crack driving force parameter with load ratio effects
journal, January 2001


Microcrack-dependent fracture of damaged rock
journal, October 1991


Dynamic Rock Mechanics Testing for Optimized Fracture Designs
conference, October 1997


Thermal fatigue life prediction of flip chip solder joints by fracture mechanics method
journal, July 1993


Theoretical study of heat transfer with moving phase-change interface in thawing of frozen food
journal, January 2005


Elastic Modulus Measurements via Laser-Ultrasonic and Knoop Indentation Techniques in Thermally Sprayed Coatings
journal, March 2005


Explosion in the Granite Field: Hardening and Softening Behavior in Rocks
conference, January 2002


Thermal fatigue of particle reinforced metal–matrix composite induced by laser heating and mechanical load
journal, July 2005


NETL Extreme Drilling Laboratory Studies High Pressure High Temperature Drilling Phenomena
journal, November 2008


Unique characteristic features of stimulated Brillouin scattering in small-core photonic crystal fibers
journal, January 2008


Optimum force characteristics of rotary-percussive machines for drilling blast holes
journal, January 1967


Advanced Cutting Structure Improves PDC Bit Performance in Hard Rock Drilling Environments
conference, April 2013


SBS threshold for single mode and multimode GRIN fibers in an all fiber configuration
journal, January 2005


Laser heating of multilayer assembly and stress levels: elasto-plastic consideration
journal, December 2003


Sub-critical crack growth in anisotropic rock
journal, April 2006


Compression-induced nonplanar crack extension with application to splitting, exfoliation, and rockburst
journal, August 1982


Design Index: A Systematic Method of PDC Drill-Bit Selection
conference, April 2013


Frictional Heating and Convective Cooling of Polycrystalline Diamond Drag Tools During Rock Cutting
journal, April 1984


Improved Bit Stability Reduces Downhole Harmonics (Vibrations)
conference, April 2013


An extended model for void growth and coalescence
journal, December 2000


Thermal analysis of laser drilling processes
journal, February 1972


Laser Drilling: Effects of Beam Application Methods on Improving Rock Removal
conference, October 2003


Testing study of subcritical crack growth rate and fracture toughness in different rocks
journal, June 2006


A bonded-particle model for rock
journal, December 2004


Rock failure mechanisms of flame-jet thermal spallation drilling—theory and experimental testing
journal, September 1989


Wave propagation, damage evolution, and dynamic fracture extension. Part I. Percussion drilling
journal, May 1996


Correlating schmidt hardness with compressive strength and young’s modulus of carbonate rocks
journal, October 1990


High power laser welding in hyperbaric gas and water environments
journal, June 1997


Laser heating of semi-infinite solid with consecutive pulses: Influence of materaial properties on temperature field
journal, April 2008


Crack propagation at a constant crack tip stress intensity factor
journal, August 1980


Moving boundary problems in phase change models current research questions
journal, April 1985


Influence of microfractures and porosity on the physico-mechanical properties and weathering of ornamental granites
journal, February 2005


Damage in granite under heating/cooling cycles and water freeze–thaw condition
journal, October 2008


The generalized relationship between the parameters C and m of Paris' law for fatigue crack growth
journal, March 1981


Coupled analysis of flow, stress and damage (FSD) in rock failure
journal, June 2002


The Design And Use Of Polycrystalline Diamond Compact Drag Bits In The Geothermal Environment
conference, September 1979


Damage constitutive model for strain-softening rock based on normal distribution and its parameter determination
journal, October 2007


Dynamics of ultrasonic percussive drilling of hard rocks
journal, February 2005


Experiments in Thermal Spallation of Various Rocks
journal, January 1996


Heat transfer and phase change during picosecond laser ablation of nickel
journal, September 2002


Microcrack statistics, Weibull distribution and micromechanical modeling of compressive failure in rock
journal, July 2006


Effects of microstructures on dynamic compression of Barre granite
journal, September 2008


Modeling of Laser Spallation Drilling of Rocks for Gas and Oil Well Drilling
conference, October 2005


Specific energy for pulsed laser rock drilling
journal, February 2003


An evaluation of the microcrack density of rocks by ultrasonic velocimetric method
journal, July 1985


Laser short pulse heating: Influence of pulse intensity on temperature and stress fields
journal, October 2006


Laser treatment of aluminum surface: Analysis of thermal stress field in the irradiated region
journal, January 2009


Nano-second laser pulse heating and assisting gas jet considerations
journal, May 2000


Repetitive laser pulse heating with a convective boundary condition at the surface
journal, December 2000


Thermal Stress Distribution in Thick Wall Cylinder Under Thermal Shock
journal, January 2009


Rock Breakage Mechanisms With a PDC Cutter
conference, January 1985


Dynamic failure analysis on granite under uniaxial impact compressive load
journal, July 2008


Microcrack interaction brittle rock subjected to uniaxial tensile loads
journal, February 2007


A new thermal-shock-resistance model for ceramics: Establishment and validation
journal, September 2005


Investigation of thermal fatigue behavior of thermal barrier coating systems
journal, October 1997


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