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Method and apparatus for delivering high power laser energy over long distances

Patent ·
OSTI ID:1177553
; ; ; ;

Systems, devices and methods for the transmission and delivery of high power laser energy deep into the earth and for the suppression of associated nonlinear phenomena. Systems, devices and methods for the laser drilling of a borehole in the earth. These systems can deliver high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates.

Research Organization:
Foro Energy, Inc., Littleton, CO (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000044
Assignee:
Foro Energy, Inc. (Littleton, CO)
Patent Number(s):
8,997,894
Application Number:
13/777,650
OSTI ID:
1177553
Country of Publication:
United States
Language:
English

References (287)

Damage in granite under heating/cooling cycles and water freeze–thaw condition journal October 2008
Brillouin gain spectrum characterization in single-mode optical fibers journal January 1997
Development, testing and track record of fiber-optic, wet-mate, connectors conference January 2003
Numerical studies of the influence of microstructure on rock failure in uniaxial compression — Part I: effect of heterogeneity journal June 2000
Formation Evaluation From Logging on Cuttings journal June 1998
An evaluation of the microcrack density of rocks by ultrasonic velocimetric method journal July 1985
High-Power Slim-Hole Drilling System conference January 1995
A bonded-particle model for rock journal December 2004
Dynamic Vickers indentation of brittle materials journal April 2000
Fiber optic distributed sensing systems for harsh aerospace environments conference July 1999
Characterization of the Austin Chalk Producing Trend conference January 1986
Dependence of ceramic fracture properties on porosity journal January 1993
Strength of glass from Hertzian line contact conference September 2011
PDC Bit Selection Method Through the Analysis of Past Bit Performances conference October 1990
Experimental measurement of surface temperatures during flame-jet induced thermal spallation journal January 1993
On the relationship between the parameters of Paris' law for fatigue crack growth in aluminium alloys journal December 1977
A Drilling Rate Model for Roller Cone Bits and Its Application conference January 2010
Faraday Rotators With Short Magneto-Optical Elements for 50-kW Laser Power journal June 2007
Rock albedo and monitoring of thermal conditions in respect of weathering: some expected and some unexpected results journal June 2005
Generalized Hermite Polynomials and the Heat Equation for Dunkl Operators journal April 1998
Effects of microstructures on dynamic compression of Barre granite journal September 2008
The Äspö Pillar Stability Experiment: Part II—Rock mass response to coupled excavation-induced and thermal-induced stresses journal July 2009
Growth and structures of surface disturbances of a round liquid jet in a coaxial airflow journal April 2004
Chebyshev rational spectral and pseudospectral methods on a semi-infinite interval
  • 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
journal January 2001
Experimental study relating thermal conductivity to thermal piercing of rocks journal May 1968
Analysis of Efficient High-Power Fiber Lasers for Well Perforation conference January 2004
The porosity and engineering properties of vesicular basalt in Saudi Arabia journal October 1999
Design concept for optical fibers with enhanced SBS threshold journal January 2005
A model for non-linear rock deformation under compression due to sub-critical crack growth journal November 1991
Laboratory Drilling Performance of PDC Bits journal June 1988
Influence of microfractures and porosity on the physico-mechanical properties and weathering of ornamental granites journal February 2005
Stimulated Brillouin scattering in multimode fibers for optical phase conjugation journal July 2002
Knowledge Selection for Laser Drilling in the Oil and Gas Industry
  • 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
conference January 2005
Investigation of Smaller-Footprint Drilling System; Ultra-High Rotary Speed Diamond Drilling Has Potential for Reduced Energy Requirements conference February 2006
Rock Matrix Properties of the Ratcliffe Interval (Madison Limestone) Flat Lake Field, Montana conference April 2013
Lasers: The Next Bit conference January 2006
Analysis of stimulated Brillouin scattering in multi-mode fiber by numerical solution journal May 2003
Specific Ion Binding to Macromolecules:  Effects of Hydrophobicity and Ion Pairing journal April 2008
Theory of fiber-optic, evanescent-wave spectroscopy and sensors journal January 1996
Microcrack statistics, Weibull distribution and micromechanical modeling of compressive failure in rock journal July 2006
Simulating and Designing Brillouin Gain Spectrum in Single-Mode Fibers journal February 2004
On the Analysis of Short-Pulse Laser Heating of Metals Using the Dual Phase Lag Heat Conduction Model journal January 2009
The effects of thermal softening and heat conduction on the dynamic growth of voids journal August 2003
Modeling of Laser Spallation Drilling of Rocks for Gas and Oil Well Drilling conference October 2005
Correlation between Schmidt hardness, uniaxial compressive strength and Young’s modulus for andesites, basalts and tuffs journal April 2004
Thermal lensing compensation optics for high power lasers conference February 2011
Thermal fatigue of particle reinforced metal–matrix composite induced by laser heating and mechanical load journal July 2005
Study of subcritical crack growth in andesite using the Double Torsion test journal June 2005
A micromechanical damage model for concrete journal January 1986
The failure of brittle solids containing small cracks under compressive stress states journal March 1986
Experiments in Thermal Spallation of Various Rocks journal January 1996
Flow structure and optical beam propagation in high-Reynolds-number gas-phase shear layers and jets journal April 2001
Stress resistance parameters of brittle solids under laser/plasma pulse heating journal September 2000
Leaky Modes in Weakly Guiding Fiber Acoustic Waveguides journal November 1986
An extended model for void growth and coalescence journal December 2000
Pore Geometry in High- and Low-Permeability Sandstones, Travis Peak Formation, East Texas journal December 1990
The influence of steam pressure on thermal spalling of sedimentary rock: Theory and experiments journal January 1998
PDC Drill Bit Design and Field Application Evolution journal March 1988
Spectral Gamma-Ray Logging in the Texas Austin Chalk Trend journal March 1980
Drag - Bit Model Including Wear conference April 1994
Coupled analysis of flow, stress and damage (FSD) in rock failure journal June 2002
Damage model for brittle elastic solids with unequal tensile and compressive strengths journal November 1994
Tensile fracture propagation and acoustic emission activity in sandstone: The effect of loading rate journal October 2005
Laser power requirement for cutting thick-section steel and effects of processing parameters on mild steel cut quality
  • 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
journal May 2011
Mechanism of brittle fracture of rock: Part I—theory of the fracture process journal October 1967
Effect of Sampling Geometry on Elemental Emissions in Laser-Induced Breakdown Spectroscopy journal December 1996
A fatigue crack driving force parameter with load ratio effects journal January 2001
Lasers: The Next Bit conference January 2006
Natural fractures in the Barnett Shale and their importance for hydraulic fracture treatments journal April 2007
Heat transfer and phase change during picosecond laser ablation of nickel journal September 2002
The Constrained Interpolation Profile Method for Multiphase Analysis journal May 2001
A simple crack-extension criterion for time-dependent spallation journal April 1971
Air-entrainment characteristics in a plunging water jet system using rectangular nozzles with rounded ends January 2003
Innovation in Wellbore Perforation Using High-Power Laser conference November 2005
Rock removal using high-power lasers for petroleum exploitation purposes conference September 2002
The ALL Electric BHA: Recent Developments toward an Intelligent Coiled-Tubing Drilling System conference January 1999
Drilling a 2-inch in Diameter Hole in Granites Submerged in Water by CO2 Lasers conference January 2009
A noninvasive method for measuring the velocity of diffuse hydrothermal flow by tracking moving refractive index anomalies journal October 2010
Nano-second laser pulse heating and assisting gas jet considerations journal May 2000
The static fatigue of brittle rock under uniaxial compression journal February 1974
Porosity dependence of the elastic modulus of lithophysae-rich tuff: numerical and experimental investigations journal September 2003
Crack propagation at a constant crack tip stress intensity factor journal August 1980
Porosity-permeability relationships in interlayered limestone-dolostone reservoirs journal January 2006
Theoretical study of heat transfer with moving phase-change interface in thawing of frozen food journal January 2005
Dynamics of laser-induced cavitation bubbles near an elastic boundary journal April 2001
Rock Breakage Mechanisms With a PDC Cutter conference January 1985
Hydraulic fracturing in a sedimentary geothermal reservoir: Results and implications journal October 2005
High power laser welding in hyperbaric gas and water environments journal June 1997
Program plan for the development of advanced synthetic-diamond drill bits for hard-rock drilling report September 1993
Investigation of thermal properties of some basalt samples in Egypt journal January 2004
Comparison of Specific Energy Between Drilling With High Power Lasers and Other Drilling Methods conference October 2002
Investigation of thermal high cycle and low cycle fatigue mechanisms of thick thermal barrier coatings journal May 1998
The role of thermal stress fatigue in the breakdown of rock in cold regions journal December 1999
Advanced Cutting Structure Improves PDC Bit Performance in Hard Rock Drilling Environments conference April 2013
Rock Failure Under Dynamic Loading Conditions journal March 1963
Determinants of House Prices: A Quantile Regression Approach journal July 2007
Flow Visualization and Characteristics of a Coaxial Jet with a Tabbed Annular Nozzle journal January 2006
Failure mechanisms of polycrystalline diamond compact drill bits in geothermal environments report September 1981
Crack Arrest and Multiple Cracking in Glass Through the Use of Designed Residual Stress Profiles journal February 1999
Inert gas cutting of thick-section stainless steel and medium-section aluminum using a high power fiber laser journal August 2009
Prediction of thermal conductivity of rock through physico-mechanical properties journal January 2007
Compression-induced nonplanar crack extension with application to splitting, exfoliation, and rockburst journal August 1982
Energy from Abandoned Oil and Gas Reservoirs conference January 2008
Fracture Mechanics Applications To Drilling And Blasting journal November 1997
Rock excavation with laser assistance journal July 1976
Coatings with intrinsic stress profile: Refined creep analysis of (Ti,Al)N and cracking due to cyclic laser heating journal February 2006
Development of underwater laser cutting technique for steel and zircaloy for nuclear applications journal December 2010
Continuous damage model for load-response estimation of concrete journal May 1980
Glass fibers for stimulated Brillouin scattering and phase conjugation journal February 2007
Dynamics of ultrasonic percussive drilling of hard rocks journal February 2005
SBS threshold for single mode and multimode GRIN fibers in an all fiber configuration journal January 2005
Microporosity in micritic limestones: a review journal July 1989
Introduction To Fracture Mechanics And Its Geophysical Applications book January 1987
On the stability of dilatant hardening for saturated rock masses journal April 1975
Waterjet-assisted rock cutting systems — the present state of the art journal July 1985
Effect of Downhole Pressure Conditions on High-Power Laser Perforation conference October 2005
VOLAN Interpretation and Application in the Bone Spring Formation (Leonard Series) in Southeastern New Mexico conference January 1984
Use of nondestructive testing methods in evaluation of thermal damage for ceramics under conditions of nonstationary thermal effects journal January 1985
The influence of residual stresses on rock hardness journal May 1974
Well Perforation Using High-Power Lasers conference October 2003
Asymptotic analysis of crack interaction with free boundary journal February 2000
Detection of Metals in the Environment Using a Portable Laser-Induced Breakdown Spectroscopy Instrument journal February 1996
Moving boundary problems in phase change models current research questions journal April 1985
Thermophysical and Thermomechanical Properties of Thermal Barrier Coating Systems book January 2000
Predicting the Uniaxial Compressive Strength and Static Young’s Modulus of Intact Sedimentary Rocks Using the Ultrasonic Test journal January 2009
Unique characteristic features of stimulated Brillouin scattering in small-core photonic crystal fibers journal January 2008
High-Power Yb3+-Doped Phosphate Fiber Amplifier journal January 2009
Semianalytical Productivity Models for Perforated Completions journal February 1991
SBS threshold of a fiber with a Brillouin frequency shift distribution journal January 1996
Thermal expansion behavior of igneous rocks journal October 1974
The microstructures of perthitic alkali feldspars revealed by hydrofluoric acid etching journal April 1994
Drag Bit Wear Model journal June 1989
Roller-Bit Penetration Rate Response as a Function of Rock Properties and Well Depth conference October 1986
Rock failure mechanisms of flame-jet thermal spallation drilling—theory and experimental testing journal September 1989
CO2 laser–plume interaction in materials processing journal January 2001
Laser heating of semi-infinite solid with consecutive pulses: Influence of materaial properties on temperature field journal April 2008
Analysis of compressive fracture in rock using statistical techniques: Part I. A non-linear rule-based model journal October 1998
Thermal expansion of silicon carbide materials journal June 1994
A study of progressive failure of rock under cyclic loading by ultrasonic and AE monitoring techniques journal January 1992
Experimental Study of Kilowatt-Average-Power Faraday Isolators conference January 2007
Development of a new direct test method for estimating cutter life, based on the Sievers’ J miniature drill test journal January 2007
A Review and Evaluation of Specific Heat Capacities of Rocks, Minerals, and Subsurface Fluids. Part 2: Fluids and Porous Rocks journal June 2004
Elastic Modulus Measurements via Laser-Ultrasonic and Knoop Indentation Techniques in Thermally Sprayed Coatings journal March 2005
Development of PDC Bits for Downhole Motors report January 1995
Thermal stress cracking and the enhancement of heat extraction from fractured geothermal reservoirs report April 1978
Comparative Economics Of Deep Drilling In Anadarko Basin conference April 2013
Laser Drilling: Effects of Beam Application Methods on Improving Rock Removal conference October 2003
Laser heating of multilayer assembly and stress levels: elasto-plastic consideration journal December 2003
Testing study of subcritical crack growth rate and fracture toughness in different rocks journal June 2006
Formation Evaluation With Logs In The Deep Anadarko Basin conference September 1972
Multilevel (Hierarchical) Modeling: What It Can and Cannot Do journal August 2006
Numerical simulation with experimental verification of the fracture behavior in granite under confining pressures based on the tension-softening model journal February 1993
Wave propagation, damage evolution, and dynamic fracture extension. Part I. Percussion drilling journal May 1996
Seventeenth Canadian Geotechnical Colloquium: The effect of cohesion loss and stress path on brittle rock strength journal October 1997
Thermal Stress Distribution in Thick Wall Cylinder Under Thermal Shock journal January 2009
An experimental investigation of factors influencing compressional‐ and shear‐wave velocities and attenuations in tight gas sandstones journal January 1994
Measurement of the refractive index of liquids at 1.3 and 1.5 micron using a fibre optic Fresnel ratio meter journal July 2004
Reservoir Characterization of the Frontier Tight Gas Sand, Green River Basin, Wyoming conference January 1991
A multiaxial stress criterion for short- and long-term strength of isotropic rock media journal December 2000
Cantilever Drilling - Ushering a New Genre of Drilling conference October 2003
Rock Properties of Berea Sandstone, Baker Dolomite, and Indiana Limestone conference January 1991
Peak-power limits on fiber amplifiers imposed by self-focusing journal January 2006
The Schmidt hammer in rock material characterization journal September 2005
Vickers and Knoop hardness of electron beam deposited ZrC and HfC thin films on titanium journal April 2006
Experimental investigation on the breakage of hard rock by the PDC cutters with combined action modes journal April 2001
The Impact of Fracture–Matrix Interaction on Thermal–Hydrological Conditions in Heated Fractured Rock journal January 2006
Laboratory Measurement and Correction of Thermal Properties for Application to the Rock Mass journal November 2005
Curvature loss formula for optical fibers journal January 1976
Micro-scratch evaluation of rock types—a means to comprehend rock drill wear journal February 2004
Modeling inelastic deformation: viscolelasticity, plasticity, fracture journal August 1988
StarWars Laser Technology Applied to Drilling and Completing Gas Wells conference January 1998
Simulating stress corrosion with a bonded-particle model for rock journal July 2007
Dynamic Rock Mechanics Testing for Optimized Fracture Designs conference October 1997
Correlating schmidt hardness with compressive strength and young’s modulus of carbonate rocks journal October 1990
Modeling Laser-Spallation Rock Drilling journal February 2006
A damage model for concrete beams in compression journal March 2007
Deepwater Drilling Riser System journal August 1986
Dynamic tensile-failure-induced velocity deficits in rock journal February 1991
Waveform Cross-Correlation-Based Differential Travel-Time Measurements at the Northern California Seismic Network journal December 2005
The combined influence of mineralogical, hygric and thermal properties on the durability of porous building stones journal August 2008
Porosity dependence of ultrasonic velocity and elastic modulus in sintered uranium dioxide — a discussion journal April 1986
Thermophysical Properties of Porous Sandstones: Measurements and Comparative Study of Some Representative Thermal Conductivity Models journal September 2005
Shielding properties of laser-induced breakdown in water for pulse durations from 5 ns to 125 fs journal January 1997
Stimulated Brillouin Scattering book August 2003
Prevention of Nozzle Wear in Abrasive Water Suspension Jets (AWSJ) Using Porous Lubricated Nozzles journal January 2003
Two stages of spallation journal September 1985
Acousto-ultrasonic study of thermal shock damage in castable refractory journal February 1991
Limitations on lightwave communications imposed by optical-fiber nonlinearities journal January 1990
Effect of temperature and pressure on the thermal conductivity of sandstone journal September 2009
Rock Types, Depositional History, and Diagenetic Effects, Ivishak Reservoir, Prudhoe Bay Field journal February 1997
All-in-quartz optics for low focal shifts conference February 2011
EOR Field Experiences in Carbonate Reservoirs in the United States
  • 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
journal December 2007
PDC Bit Dynamics conference January 1992
Visualization for heat and mass transport phenomena in supercritical artificial air journal August 2005
Laser short pulse heating: Influence of pulse intensity on temperature and stress fields journal October 2006
Collapse and rebound of a laser-induced cavitation bubble journal October 2001
Dynamics of femtosecond laser-induced breakdown in water from femtoseconds to microseconds journal January 2002
Determination of the thermal conductivity from physico-mechanical properties journal February 2008
GEODYN: A Geological Formation/Drillstring Dynamics Computer Program conference April 2013
The influence of temperature dependent properties of thermal rock fragmentation journal August 1975
Digital Simulation in Electrochemistry book January 2005
Frictional Heating and Convective Cooling of Polycrystalline Diamond Drag Tools During Rock Cutting journal April 1984
Simulation of the coupled thermal optical effects for liquid immersion micro-/nano-lithography conference May 2004
Temperature Profile in Semi-infinite Body With Exponential Source and Convective Boundary Condition journal January 1990
A dynamic damage growth model for uniaxial compressive response of rock aggregates journal May 2002
Analysis of Efficient High-Power Fiber Lasers for Well Perforation conference January 2004
Orthonormal Basis Functions for Continuous-Time Systems and Lp Convergence journal August 1999
An algorithm and a modular subroutine for the CAP model journal April 1979
Optical Isolator for Unpolarized Laser Radiation at Multi-Kilowatt Average Power conference January 2006
Travis Peak Core Permeability and Porosity Relationships at Reservoir Stress journal September 1991
Sub-critical crack growth in anisotropic rock journal April 2006
A criterion for the time dependence of dynamic fracture journal December 1968
Separating Bit and Lithology Effects from Drilling Mechanics Data conference January 1988
Cutting Efficiency of a Single PDC Cutter on Hard Rock journal June 2009
Simulation of bulk-absorption thermal lensing in transmissive optics of gravitational waves detectors journal October 2003
Laser-induced shock wave generation and shock wave enhancement in basalt journal September 1999
PDC Bit Selection Through Cost Prediction Estimates Using Crossplots and Sonic Log Data conference January 1993
Drilling a Hole in Granite Submerged in Water By Use of CO2 Laser journal February 2010
Investigation of thermal fatigue behavior of thermal barrier coating systems journal October 1997
Rock Cutting By Laser conference April 2013
A new thermal-shock-resistance model for ceramics: Establishment and validation journal September 2005
Inverted S-shaped model for nonlinear fatigue damage of rock journal April 2009
Damage constitutive model for strain-softening rock based on normal distribution and its parameter determination journal October 2007
Fundamental mechanisms of cutting front formation in laser cutting conference September 1994
New PDC Bit Technology, Improved Drillability Analysis, and Operational Practices Improve Drilling Performance in Hard and Highly Heterogeneous Applications conference April 2013
Dominant rock properties affecting the penetration rate of percussive drills journal July 2003
Tutorial on maximum likelihood estimation journal February 2003
Nonlinear Fiber Optics book January 2000
Bend loss in large core multimode optical fiber beam delivery systems journal January 1991
Experiments with rock: Remarks on strength and stability issues journal June 2007
Optimization of parameters for fibre laser cutting of a 10 mm stainless steel plate
  • 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
journal May 2011
Thermal analysis of laser drilling processes journal February 1972
A Review and Evaluation of Specific Heat Capacities of Rocks, Minerals, and Subsurface Fluids. Part 1: Minerals and Nonporous Rocks journal June 2004
Characterization of the melt removal rate in laser cutting of thick-section stainless steel journal May 2010
Dynamic failure analysis on granite under uniaxial impact compressive load journal July 2008
Roller Bit Model With Rock Ductility and Cone Offset conference September 1987
Fluorescent dye penetrants applied to rock fractures journal March 1968
Cutting thin sheet metal with a water jet guided laser using various cutting distances, feed speeds and angles of incidence journal April 2006
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
  • XXXV Annual Symposium on Optical Materials for High Power Lasers: Boulder Damage Symposium, SPIE Proceedings https://doi.org/10.1117/12.524568
conference June 2004
PDC Bits: All Comes From the Cutter/Rock Interaction conference February 2006
Study on rock-drilling using PDC bits for the prediction of torque and rate of penetration journal January 2009
Mixed Mode Cracking in Layered Materials book January 1991
The generalized relationship between the parameters C and m of Paris' law for fatigue crack growth journal March 1981
Spall damage modelling and dynamic fracture specificities of ceramics journal July 1992
Prediction of compressive and tensile strength of limestone via genetic programming journal July 2008
Design Index: A Systematic Method of PDC Drill-Bit Selection conference April 2013
Linear thermal expansion of granitic rocks: influence of apparent porosity, grain size and quartz content journal May 2004
Specific energy for pulsed laser rock drilling journal February 2003
High-Power ZBLAN Glass Fiber Lasers: Review and Prospect journal January 2010
Coiled Tubing Deployed ESPs Utilizing Internally Installed Power Cable - A Project Update conference January 1997
Improved Bit Stability Reduces Downhole Harmonics (Vibrations) conference April 2013
Effective Medium Theory of the Porosity Dependence of Bulk Moduli journal May 2001
Composition and Texture on Compressive Strength Variations in the Travis Peak Formation conference April 2013
Studies of the frictional heating of polycrystalline diamond compact drag tools during rock cutting report June 1982
An empirical relationship between thermal conductivity and elastic wave velocities in sandstone journal August 1993
Laboratory Testing of High-Pressure, High-Speed PDC Bits conference April 2013
The dynamic strength and fracture properties of dresser basalt journal May 1974
Brillouin amplification in phase coherent transfer of optical frequencies over 480 km fiber journal January 2010
Microcrack interaction brittle rock subjected to uniaxial tensile loads journal February 2007
Laser heating of sheet metal and thermal stress development journal November 2004
Case History of the University Block 9 (Wolfcamp) FieldA Gas-Water Injection Secondary Recovery Project journal December 1970
Observation of hole burning in spectrum of SBS in optical fibres under CW monochromatic laser excitation
  • 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
conference January 1999
Improved Optimisation of Bit Selection Using Mathematically Modelled Bit Performance Indices conference January 2006
Simultaneous Velocity and Concentration Measurements of a Turbulent Jet Mixing Flow journal October 2002
Simulation of dynamic response of granite: A numerical approach of shock-induced damage beneath impact craters journal December 2006
Laser treatment of aluminum surface: Analysis of thermal stress field in the irradiated region journal January 2009
The effect of interaction time and saturation of rock on specific energy in ND:YAG laser perforating journal February 2011
Microcracks in rocks: A review journal December 1983
Laser Drilling: Determination of Energy Required to Remove Rock conference October 2001
Correlation of Yield Strength and Tensile Strength with Hardness for Steels journal April 2008
Cavitation inception in quiescent and co-flow nozzle jets journal October 2010
Wear characteristics of PDC pin and hybrid core bits in rock drilling journal September 1995
Repetitive laser pulse heating with a convective boundary condition at the surface journal December 2000
Role of shale thickness on vertical connectivity of fractures: application of crack-bridging theory to the Austin Chalk, Texas journal July 2001
Using compression wave ultrasonic transducers to measure the velocity of surface waves and hence determine dynamic modulus of elasticity for concrete journal June 1996
The effect of temperature on the strength at high confining pressure of granodiorite containing free and chemically-bound water journal January 1976
Stress-strain relationship for empirical equations of creep in rocks journal March 1972
Particle modeling simulation of thermal effects on ore breakage journal October 2008
Prediction of thermal conductivity of rocks by soft computing journal May 2010
Thermal fatigue life prediction of flip chip solder joints by fracture mechanics method journal July 1993
Underwater Laser Welding by 4 kW CW YAG Laser journal October 2001
A new approach to quantification of metamorphism using ultra-small and small angle neutron scattering journal December 2009
The Design And Use Of Polycrystalline Diamond Compact Drag Bits In The Geothermal Environment conference September 1979
Some mechanisms of microcrack growth and interaction in compressive rock failure journal June 1981
Fatigue crack growth in lithium hydride dissertation September 1993
Characterization of Diagenetically Altered Carbonate Reservoirs, South Cowden Grayburg Reservoir, West Texas conference October 1996
Intrinsic Length Scales in Tool-Rock Interaction journal January 2008

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