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Title: Electric motor for laser-mechanical drilling

Patent ·
OSTI ID:1190917
; ;

A high power laser drilling system utilizing an electric motor laser bottom hole assembly. A high power laser beam travels within the electric motor for advancing a borehole. High power laser drilling system includes a down hole electrical motor having a hollow rotor for conveying a high power laser beam through the electrical motor.

Research Organization:
Foro Energy, Inc., Houston, TX (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000044
Assignee:
Foro Energy, Inc. (Houston, TX)
Patent Number(s):
9,074,422
Application Number:
13/403,287
OSTI ID:
1190917
Resource Relation:
Patent File Date: 2012 Feb 23
Country of Publication:
United States
Language:
English

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Bottom hole assembly patent December 2004
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Laser boring method and system patent March 2005
Distributed flow properties wellbore measurement system patent April 2005
Laser wellbore completion apparatus and method patent April 2005
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Fiber optics laser perforation tool patent May 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
Method and system for monitoring smart structures utilizing distributed optical sensors patent July 2005
Method and apparatus for determining flow rates patent July 2005
Inverted motor for drilling rocks, soils and man-made materials and for re-entry and cleanout of existing wellbores and pipes 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
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Inkjet ink having yellow dye mixture patent May 2006
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Inverted motor for drilling rocks, soils and man-made materials and for re-entry and cleanout of existing wellbores and pipes patent June 2006
Apparatus for acoustic detection of particles in a flow using a fiber optic interferometer patent July 2006
Multiplexed distribution of optical power patent July 2006
Determination of thermal properties of a formation patent August 2006
Heat warning safety device using fiber optic cables patent August 2006
Optical fibre means patent August 2006
Downhole high resolution NMR spectroscopy with polarization enhancement patent October 2006
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Dual wall drill string assembly patent December 2006
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Downhole filter patent March 2007
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Method and apparatus for a tunable diode laser spectrometer for analysis of hydrocarbon samples patent March 2007
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Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore patent September 2007
Assembly and method for determining thermal properties of a formation and forming a liner patent February 2008
Method and system for reservoir characterization in connection with drilling operations patent March 2008
Method and apparatus for a downhole spectrometer based on electronically tunable optical filters patent April 2008
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Measuring the weight on a drill bit during drilling operations using coherent radiation patent July 2008
Launch monitor patent July 2008
Method and apparatus for blow-out prevention in subsea drilling/completion systems patent July 2008
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Methods of using a laser to spall and drill holes in rocks patent August 2008
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High throughput reconfigurable data analysis system patent December 2008
Methods of using a laser to perforate composite structures of steel casing, cement and rocks patent February 2009
Drilling, perforating and formation analysis patent February 2009
Methods of well stimulation during drilling operations patent March 2009
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Assembly and method for determining thermal properties of a formation and forming a liner patent April 2009
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Measuring the weight on a drill bit during drilling operations using coherent radiation patent December 2009
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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
Method and device for excavating submerged stratum patent September 2010
Downhole power source patent November 2010
Fiber laser system patent December 2010
Method and apparatus for logging a well using a fiber optic line and sensors patent March 2011
Drilling, perforating and formation analysis patent May 2011
Apparatus and methods for continuous tomography of cores patent September 2011
Method for removing oilfield mineral scale from pipes and tubing patent December 2011
Equipment for excavation of deep boreholes in geological formation and the manner of energy and material transport in the boreholes patent December 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
Laser bottom hole assembly patent January 2014
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
Inverted motor for drilling rocks, soils and man-made materials and for re-entry and cleanout of existing wellbores and pipes patent-application March 2003
Mounts for blowout preventer bonnets patent-application May 2003
Method and system for monitoring smart structures utilizing distributed optical sensors 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
Method for cutting an object and or further processing the cut material an carrier for holding the object and the cut material 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 and apparatus for a tunable diode laser spectrometer for analysis of hydrocarbon samples patent-application January 2005
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
Combined Bragg grating wavelength interrogator and brillouin backscattering measuring instrument patent-application May 2005
Method and apparatus for a downhole spectrometer based on electronically tunable optical filters patent-application May 2005
Well system patent-application June 2005
Composite spoolable tube patent-application June 2005
Dual property hydraulic configuration patent-application June 2005
Inverted motor for drilling rocks, soils and man-made materials and for re-entry and cleanout of existing wellbores and pipes patent-application September 2005
Apparatus, Method, and Computer Program Product for Testing Waveguided Display System and Components patent-application September 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
Measuring the weight on a drill bit during drilling operations using coherent radiation patent-application April 2006
Drilling, perforating and formation analysis patent-application May 2006
Well perforating for increased production patent-application June 2006
Methods useful for controlling fluid loss in subterranean formations patent-application June 2006
Assembly and method for determining thermal properties of a formation and forming a liner patent-application August 2006
Assembly for determining thermal properties of a formation while drilling or perforating patent-application August 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
Laser light source, method of laser oscillation, and method of laser processing patent-application November 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
Assembly and Method for Determining Thermal Properties of a Formation and Forming a Liner patent-application March 2008
Coiled Tubing Tractor Assembly patent-application March 2008
Method and System for Forming a Non-Circular Borehole patent-application April 2008
Method of storage of sequestered greenhouse gasses in deep underground reservoirs patent-application May 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
Measuring The Weight On A Drill Bit During Drilling Operations Using Coherent Radiation patent-application January 2009
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
Pulsed Electric Rock Drilling Apparatus with Non-Rotating Bit and Directional Control 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
Method, Drilling Machine, Drill bit and Bottom Hole Assembly for Drilling by Electrical Discharge by Electrical Discharge Pulses 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
Integrating Sphere Photovoltaic Receiver (Powersphere) For Laser Light To Electric Power Conversion patent-application November 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
Electrically Non-Conductive Sleeve for Use in Wellbore Instrumentation patent-application March 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
Optical Fiber Cable for Transmission of High Power Laser Energy Over Great Distances patent-application August 2010
Methods and Apparatus for Mechanical and Thermal Drilling patent-application September 2010
Equipment For Excavation Of Deep Boreholes In Geological Formation And The Manner Of Energy And Material Transport In The Boreholes 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
Adjustable Testing Tool and Method of Use 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
Rock Drilling in Great Depths by Thermal Fragmentation Using Highly Exothermic Reactions Evolving in the Environment of a Water-Based Drilling Fluid 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
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Orthonormal Basis Functions for Continuous-Time Systems and Lp Convergence journal August 1999
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The failure of brittle solids containing small cracks under compressive stress states journal March 1986
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Tensile fracture propagation and acoustic emission activity in sandstone: The effect of loading rate journal October 2005
Simulation of the coupled thermal optical effects for liquid immersion micro-/nano-lithography conference May 2004
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Temperature Profile in Semi-infinite Body With Exponential Source and Convective Boundary Condition journal January 1990
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Digital Simulation in Electrochemistry book January 2005
Dynamics of laser-induced cavitation bubbles near an elastic boundary journal April 2001
Rock Failure Under Dynamic Loading Conditions journal March 1963
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Strength of glass from Hertzian line contact conference September 2011
Rock Cutting By Laser conference April 2013
Deepwater Drilling Riser System journal August 1986
Limitations on lightwave communications imposed by optical-fiber nonlinearities journal January 1990
A damage model for concrete beams in compression journal March 2007
Successful Drilling of Basalt in a West of Shetland Deepwater Discovery conference September 2005
Use of nondestructive testing methods in evaluation of thermal damage for ceramics under conditions of nonstationary thermal effects journal January 1985
Case History of the University Block 9 (Wolfcamp) FieldA Gas-Water Injection Secondary Recovery Project journal December 1970
The static fatigue of brittle rock under uniaxial compression journal February 1974
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
Linear thermal expansion of granitic rocks: influence of apparent porosity, grain size and quartz content journal May 2004
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Some mechanisms of microcrack growth and interaction in compressive rock failure journal June 1981
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Correlation between Schmidt hardness, uniaxial compressive strength and Young’s modulus for andesites, basalts and tuffs journal April 2004
Porosity-permeability relationships in interlayered limestone-dolostone reservoirs journal January 2006
Stimulated Brillouin scattering in multimode fibers for optical phase conjugation journal July 2002
Wear characteristics of PDC pin and hybrid core bits in rock drilling journal September 1995
Peak-power limits on fiber amplifiers imposed by self-focusing journal January 2006
Vickers and Knoop hardness of electron beam deposited ZrC and HfC thin films on titanium journal April 2006
A simple crack-extension criterion for time-dependent spallation journal April 1971
Rock removal using high-power lasers for petroleum exploitation purposes conference September 2002
Effect of Downhole Pressure Conditions on High-Power Laser Perforation conference October 2005
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
PDC Bits: All Comes From the Cutter/Rock Interaction conference February 2006
Program plan for the development of advanced synthetic-diamond drill bits for hard-rock drilling report September 1993
Comparison of Specific Energy Between Drilling With High Power Lasers and Other Drilling Methods conference October 2002
Spectral signatures and optic coefficients of surface and reservoir rocks at COIL, CO 2 , and Nd:YAG laser wavelengths
  • Graves, Ramona M.; Bailo, El Tahir
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conference June 2004
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Laboratory Measurement and Correction of Thermal Properties for Application to the Rock Mass journal November 2005
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journal January 2001
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Shielding properties of laser-induced breakdown in water for pulse durations from 5 ns to 125 fs journal January 1997
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Numerical simulation with experimental verification of the fracture behavior in granite under confining pressures based on the tension-softening model journal February 1993
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Failure mechanisms of polycrystalline diamond compact drill bits in geothermal environments report September 1981
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Intrinsic Length Scales in Tool-Rock Interaction journal January 2008
Mixed Mode Cracking in Layered Materials book January 1991
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Semianalytical Productivity Models for Perforated Completions journal February 1991
Development of PDC Bits for Downhole Motors report January 1995
A model for non-linear rock deformation under compression due to sub-critical crack growth journal November 1991
PDC Drill Bit Design and Field Application Evolution journal March 1988
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Microcracks in rocks: A review journal December 1983
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Dynamic Rock Mechanics Testing for Optimized Fracture Designs conference October 1997
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Theoretical study of heat transfer with moving phase-change interface in thawing of frozen food journal January 2005
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The dynamic strength and fracture properties of dresser basalt journal May 1974
Continuous damage model for load-response estimation of concrete journal May 1980
Thermal fatigue of particle reinforced metal–matrix composite induced by laser heating and mechanical load journal July 2005
Damage model for brittle elastic solids with unequal tensile and compressive strengths journal November 1994
Travis Peak Core Permeability and Porosity Relationships at Reservoir Stress journal September 1991
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EOR Field Experiences in Carbonate Reservoirs in the United States
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journal December 2007
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
Unique characteristic features of stimulated Brillouin scattering in small-core photonic crystal fibers journal January 2008
Glass fibers for stimulated Brillouin scattering and phase conjugation journal February 2007
New PDC Bit Technology, Improved Drillability Analysis, and Operational Practices Improve Drilling Performance in Hard and Highly Heterogeneous Applications conference April 2013
Advanced Cutting Structure Improves PDC Bit Performance in Hard Rock Drilling Environments conference April 2013
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
SBS threshold for single mode and multimode GRIN fibers in an all fiber configuration journal January 2005
Laser-induced shock wave generation and shock wave enhancement in basalt journal September 1999
Predicting the Uniaxial Compressive Strength and Static Young’s Modulus of Intact Sedimentary Rocks Using the Ultrasonic Test journal January 2009
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
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
Thermal stress cracking and the enhancement of heat extraction from fractured geothermal reservoirs report April 1978
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
Laser heating of multilayer assembly and stress levels: elasto-plastic consideration journal December 2003
Study of subcritical crack growth in andesite using the Double Torsion test journal June 2005
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
Brillouin gain spectrum characterization in single-mode optical fibers journal January 1997
Design Index: A Systematic Method of PDC Drill-Bit Selection conference April 2013
Fundamental mechanisms of cutting front formation in laser cutting conference September 1994
Studies of the frictional heating of polycrystalline diamond compact drag tools during rock cutting report June 1982
Improved Bit Stability Reduces Downhole Harmonics (Vibrations) conference April 2013
Thermal expansion of silicon carbide materials journal June 1994
An extended model for void growth and coalescence journal December 2000
Thermal analysis of laser drilling processes journal February 1972
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
Testing study of subcritical crack growth rate and fracture toughness in different rocks journal June 2006
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
A bonded-particle model for rock journal December 2004
Simulating stress corrosion with a bonded-particle model for rock journal July 2007
Using compression wave ultrasonic transducers to measure the velocity of surface waves and hence determine dynamic modulus of elasticity for concrete journal June 1996
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
Rock failure mechanisms of flame-jet thermal spallation drilling—theory and experimental testing journal September 1989
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
Role of shale thickness on vertical connectivity of fractures: application of crack-bridging theory to the Austin Chalk, Texas journal July 2001
Generalized Hermite Polynomials and the Heat Equation for Dunkl Operators journal April 1998
Fracture Mechanics Applications To Drilling And Blasting journal November 1997
Wave propagation, damage evolution, and dynamic fracture extension. Part I. Percussion drilling journal May 1996
Dynamic tensile-failure-induced velocity deficits in rock journal February 1991
Correlating schmidt hardness with compressive strength and young’s modulus of carbonate rocks journal October 1990
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
High power laser welding in hyperbaric gas and water environments journal June 1997
SBS threshold of a fiber with a Brillouin frequency shift distribution journal January 1996
Laser heating of semi-infinite solid with consecutive pulses: Influence of materaial properties on temperature field journal April 2008
Prediction of thermal conductivity of rock through physico-mechanical properties journal January 2007
Cantilever Drilling - Ushering a New Genre of Drilling conference October 2003
Drag Bit Wear Model journal June 1989
Crack propagation at a constant crack tip stress intensity factor journal August 1980
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
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
Numerical studies of the influence of microstructure on rock failure in uniaxial compression — Part I: effect of heterogeneity journal June 2000
Coupled analysis of flow, stress and damage (FSD) in rock failure journal June 2002
Modeling inelastic deformation: viscolelasticity, plasticity, fracture journal August 1988
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
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
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
Particle modeling simulation of thermal effects on ore breakage journal October 2008
A Review and Evaluation of Specific Heat Capacities of Rocks, Minerals, and Subsurface Fluids. Part 1: Minerals and Nonporous Rocks journal June 2004
A Review and Evaluation of Specific Heat Capacities of Rocks, Minerals, and Subsurface Fluids. Part 2: Fluids and Porous Rocks journal June 2004
Laboratory Drilling Performance of PDC Bits journal June 1988
Damage constitutive model for strain-softening rock based on normal distribution and its parameter determination journal October 2007
Rock Matrix Properties of the Ratcliffe Interval (Madison Limestone) Flat Lake Field, Montana conference April 2013
Dynamics of ultrasonic percussive drilling of hard rocks journal February 2005
Experimental measurement of surface temperatures during flame-jet induced thermal spallation journal January 1993
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
The effects of thermal softening and heat conduction on the dynamic growth of voids journal August 2003
Effects of microstructures on dynamic compression of Barre granite journal September 2008
Inverted S-shaped model for nonlinear fatigue damage of rock journal April 2009
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
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
An evaluation of the microcrack density of rocks by ultrasonic velocimetric method journal July 1985
Determination of the thermal conductivity from physico-mechanical properties journal February 2008
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
An empirical relationship between thermal conductivity and elastic wave velocities in sandstone journal August 1993
Dynamic failure analysis on granite under uniaxial impact compressive load journal July 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
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
Thermophysical and Thermomechanical Properties of Thermal Barrier Coating Systems book January 2000
High-Power ZBLAN Glass Fiber Lasers: Review and Prospect journal January 2010
Jet Impingement Heat Transfer: Physics, Correlations, and Numerical Modeling book January 2006

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