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Title: Electric motor for laser-mechanical drilling


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.

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Research Org.:
Foro Energy, Inc., Houston, TX (United States)
Sponsoring Org.:
OSTI Identifier:
Patent Number(s):
Application Number:
Foro Energy, Inc. (Houston, TX)
DOE Contract Number:  
Resource Type:
Resource Relation:
Patent File Date: 2012 Feb 23
Country of Publication:
United States

Citation Formats

Grubb, Daryl L., Faircloth, Brian O., and Zediker, Mark S. Electric motor for laser-mechanical drilling. United States: N. p., 2015. Web.
Grubb, Daryl L., Faircloth, Brian O., & Zediker, Mark S. Electric motor for laser-mechanical drilling. United States.
Grubb, Daryl L., Faircloth, Brian O., and Zediker, Mark S. Tue . "Electric motor for laser-mechanical drilling". United States.
title = {Electric motor for laser-mechanical drilling},
author = {Grubb, Daryl L. and Faircloth, Brian O. and Zediker, Mark S.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {7}


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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

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

  • Luffel, D. L.; Howard, W. E.; Hunt, E. R.
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Specific Ion Binding to Macromolecules:  Effects of Hydrophobicity and Ion Pairing
journal, April 2008

  • Lund, Mikael; Vácha, Robert; Jungwirth, Pavel
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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
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Thermophysical Properties of Porous Sandstones: Measurements and Comparative Study of Some Representative Thermal Conductivity Models
journal, September 2005

  • Maqsood, A.; Kamran, K.
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Curvature loss formula for optical fibers
journal, January 1976

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

  • Martin, C. D.
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Unique characteristic features of stimulated Brillouin scattering in small-core photonic crystal fibers
journal, January 2008

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

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  • Laser and Particle Beams, Vol. 25, Issue 1, p. 15-21
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New PDC Bit Technology, Improved Drillability Analysis, and Operational Practices Improve Drilling Performance in Hard and Highly Heterogeneous Applications
conference, April 2013

  • Mensa-Wilmot, Graham; Douglas, Charles; Schell, Eddie
  • SPE Eastern Regional Meeting
  • DOI: 10.2118/91423-MS

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

  • Mensa-Wilmot, Graham; Soza, Robert; Hudson, Kyle
  • SPE Annual Technical Conference and Exhibition
  • DOI: 10.2118/84354-MS

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

  • Messica, A.; Greenstein, A.; Katzir, A.
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Experimental study relating thermal conductivity to thermal piercing of rocks
journal, May 1968

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

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  • Geochemistry, Geophysics, Geosystems, Vol. 11, Issue 10, 18 p.
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SBS threshold for single mode and multimode GRIN fibers in an all fiber configuration
journal, January 2005

  • Mocofanescu, A.; Wang, L.; Jain, R.
  • Optics Express, Vol. 13, Issue 6, p. 2019-2024
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Laser-induced shock wave generation and shock wave enhancement in basalt
journal, September 1999

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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

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  • Applied Spectroscopy, Vol. 50, Issue 12, p. 1483-1499
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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

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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

  • Naqavi, I. Z.; Yilbas, B. S.; Khan, Ovaisullah
  • Heat and Mass Transfer, Vol. 40, Issue 1-2, p. 25-32
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Study of subcritical crack growth in andesite using the Double Torsion test
journal, June 2005

  • Nara, Y.; Kaneko, K.
  • International Journal of Rock Mechanics and Mining Sciences, Vol. 42, Issue 4, p. 521-530
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Sub-critical crack growth in anisotropic rock
journal, April 2006

  • Nara, Y.; Kaneko, K.
  • International Journal of Rock Mechanics and Mining Sciences, Vol. 43, Issue 3, p. 437-453
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Compression-induced nonplanar crack extension with application to splitting, exfoliation, and rockburst
journal, August 1982

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  • Journal of Geophysical Research: Solid Earth, Vol. 87, Issue B8, p. 6805-6821
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Brillouin gain spectrum characterization in single-mode optical fibers
journal, January 1997

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

  • O'Hare, Jim; Aigbekaen, Osarumwense O. A.
  • IADC/SPE Drilling Conference
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Fundamental mechanisms of cutting front formation in laser cutting
conference, September 1994

  • Olsen, Flemming O.
  • Europto High Power Lasers and Laser Applications V
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Improved Bit Stability Reduces Downhole Harmonics (Vibrations)
conference, April 2013

  • Ortiz, Blas; Casallas, Cesar; Parra, Hector
  • SPE/IADC Asia Pacific Drilling Technology
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Thermal expansion of silicon carbide materials
journal, June 1994

  • Palchaev, D. K.; Murlieva, Zh. Kh.; Palchaeva, Kh. S.
  • Journal of Engineering Physics and Thermophysics, Vol. 66, Issue 6, p. 660-662
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An extended model for void growth and coalescence
journal, December 2000

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  • Journal of the Mechanics and Physics of Solids, Vol. 48, Issue 12, p. 2467-2512
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Thermal analysis of laser drilling processes
journal, February 1972

  • Paek, Un-Chul; Gagliano, F.
  • IEEE Journal of Quantum Electronics, Vol. 8, Issue 2, p. 112-119
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Correlation of Yield Strength and Tensile Strength with Hardness for Steels
journal, April 2008

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  • Journal of Materials Engineering and Performance, Vol. 17, Issue 6, p. 888-893
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Formation Evaluation With Logs In The Deep Anadarko Basin
conference, September 1972

  • Peebler, R. P.
  • SPE Deep Drilling and Production Symposium
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Porosity dependence of ultrasonic velocity and elastic modulus in sintered uranium dioxide — a discussion
journal, April 1986

  • Phani, K. K.; Niyogi, S. K.
  • Journal of Materials Science Letters, Vol. 5, Issue 4, p. 427-430
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Testing study of subcritical crack growth rate and fracture toughness in different rocks
journal, June 2006

  • Cao, Ping; Li, Jiang-teng; Yuan, Hai-ping
  • Transactions of Nonferrous Metals Society of China, Vol. 16, Issue 3, p. 709-713
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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

  • Porter, Jyri A.; Louhisalmi, Yrjö A.; Karjalainen, Jussi A.
  • The International Journal of Advanced Manufacturing Technology, Vol. 33, Issue 9-10, p. 961-967
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A bonded-particle model for rock
journal, December 2004

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  • International Journal of Rock Mechanics and Mining Sciences, Vol. 41, Issue 8, p. 1329-1364
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Simulating stress corrosion with a bonded-particle model for rock
journal, July 2007

  • Potyondy, David O.
  • International Journal of Rock Mechanics and Mining Sciences, Vol. 44, Issue 5, p. 677-691
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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

  • Ramadan, K.; Tyfour, W. R.; Al-Nimr, M. A.
  • Journal of Heat Transfer, Vol. 131, Issue 11, Article No. 111301
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A study of progressive failure of rock under cyclic loading by ultrasonic and AE monitoring techniques
journal, January 1992

  • Rao, M. V. M. S.; Ramana, Y. V.
  • Rock Mechanics and Rock Engineering, Vol. 25, Issue 4, p. 237-251
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Rock failure mechanisms of flame-jet thermal spallation drilling—theory and experimental testing
journal, September 1989

  • Rauenzahn, R. M.; Tester, J. W.
  • International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, Vol. 26, Issue 5, p. 381-399
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On the stability of dilatant hardening for saturated rock masses
journal, April 1975

Thermal expansion behavior of igneous rocks
journal, October 1974

  • Richter, Dorothy; Simmons, Gene
  • International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, Vol. 11, Issue 10, p. 403-411
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Comparative Economics Of Deep Drilling In Anadarko Basin
conference, April 2013

  • Rietman, N. D.; Rumph, K. D.
  • SPE Deep Drilling and Production Symposium
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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

  • Rossmanith, H. P.; Daehnke, A.; Nasmillner, R. E. K.
  • Fatigue & Fracture of Engineering Materials & Structures, Vol. 20, Issue 11, p. 1617-1636
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Wave propagation, damage evolution, and dynamic fracture extension. Part I. Percussion drilling
journal, May 1996

  • Rossmanith, H. P.; Knasmillner, R. E.; Daehnke, A.
  • Materials Science, Vol. 32, Issue 3, p. 350-358
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Dynamic tensile-failure-induced velocity deficits in rock
journal, February 1991

  • Rubin, Allan M.; Ahrens, Thomas J.
  • Geophysical Research Letters, Vol. 18, Issue 2, p. 219-222
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Correlating schmidt hardness with compressive strength and young’s modulus of carbonate rocks
journal, October 1990

  • Sachpazis, C. I.
  • Bulletin of the International Association of Engineering Geology, Vol. 42, Issue 1, p. 75-83
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An algorithm and a modular subroutine for the CAP model
journal, April 1979

  • Sandler, I. S.; Rubin, D.
  • International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 3, Issue 2, p. 173-186
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Formation Evaluation From Logging on Cuttings
journal, June 1998

  • Santarelli, F. J.; Marsala, A. F.; Brignoli, M.
  • SPE Reservoir Evaluation & Engineering, Vol. 1, Issue 3, p. 238-244
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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

  • Schaff, D. P.; Waldhauser, Felix
  • Bulletin of the Seismological Society of America, Vol. 95, Issue 6, p. 2446-2461
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Dynamics of femtosecond laser-induced breakdown in water from femtoseconds to microseconds
journal, January 2002

  • Schaffer, Chris B.; Nishimura, Nozomi; Glezer, Eli N.
  • Optics Express, Vol. 10, Issue 3, p. 196-203
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High power laser welding in hyperbaric gas and water environments
journal, June 1997

  • Shannon, G. J.; McNaught, W.; Deans, W. F.
  • Journal of Laser Applications, Vol. 9, Issue 3, p. 129-136
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SBS threshold of a fiber with a Brillouin frequency shift distribution
journal, January 1996

  • Shiraki, K.; Ohashi, M.; Tateda, M.
  • Journal of Lightwave Technology, Vol. 14, Issue 1, p. 50-57
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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

  • Sinha, Diwakar
  • SPE/IADC Middle East Drilling Technology Conference and Exhibition
  • DOI: 10.2118/85333-MS

Drag Bit Wear Model
journal, June 1989

  • Sinor, A.; Warren, T. M.
  • SPE Drilling Engineering, Vol. 4, Issue 2, p. 128-136
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Crack propagation at a constant crack tip stress intensity factor
journal, August 1980

  • Smith, E.
  • International Journal of Fracture, Vol. 16, Issue 4, p. R215-R218
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Rock Types, Depositional History, and Diagenetic Effects, Ivishak Reservoir, Prudhoe Bay Field
journal, February 1997

  • Sneider, R. M.; Erickson, J. W.
  • SPE Reservoir Engineering, Vol. 12, Issue 1, p. 23-30
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Pore Geometry in High- and Low-Permeability Sandstones, Travis Peak Formation, East Texas
journal, December 1990

  • Soeder, D. J.; Chowdiah, Prasan
  • SPE Formation Evaluation, Vol. 5, Issue 4, p. 421-430
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Moving boundary problems in phase change models current research questions
journal, April 1985

  • Solomon, A. D.; Alexiades, V.; Wilson, D. G.
  • ACM SIGNUM Newsletter, Vol. 20, Issue 2, p. 8-12
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Influence of microfractures and porosity on the physico-mechanical properties and weathering of ornamental granites
journal, February 2005

  • Sousa, Luís M. O.; Suárez del Río, Luis M.; Calleja, Lope
  • Engineering Geology, Vol. 77, Issue 1-2, p. 153-168
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Damage in granite under heating/cooling cycles and water freeze–thaw condition
journal, October 2008

  • Takarli, Mokhfi; Prince, William; Siddique, Rafat
  • International Journal of Rock Mechanics and Mining Sciences, Vol. 45, Issue 7, p. 1164-1175
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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

  • Tang, C. A.; Liu, H.; Lee, P. K. K.
  • International Journal of Rock Mechanics and Mining Sciences, Vol. 37, Issue 4, p. 555-569
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Coupled analysis of flow, stress and damage (FSD) in rock failure
journal, June 2002

  • Tang, C. A.; Tham, L. G.; Lee, P. K. K.
  • International Journal of Rock Mechanics and Mining Sciences, Vol. 39, Issue 4, p. 477-489
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Modeling inelastic deformation: viscolelasticity, plasticity, fracture
journal, August 1988

  • Terzopoulos, Demetri; Fleischer, Kurt
  • ACM SIGGRAPH Computer Graphics, Vol. 22, Issue 4, p. 269-278
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A criterion for the time dependence of dynamic fracture
journal, December 1968

  • Tuler, Floyd R.; Butcher, Barry M.
  • International Journal of Fracture Mechanics, Vol. 4, Issue 4, p. 431-437
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The ALL Electric BHA: Recent Developments toward an Intelligent Coiled-Tubing Drilling System
conference, January 1999

  • Turner, Daniel R.; Head, Philip F.; Yuratich, Micheal A.
  • SPE/ICoTA Coiled Tubing Roundtable
  • DOI: 10.2118/54469-MS

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

  • Tutuncu, Azra N.; Podio, Augusto L.; Sharma, Mukul M.
  • Geophysics, Vol. 59, Issue 1, p. 77-86
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Stress-strain relationship for empirical equations of creep in rocks
journal, March 1972

Dependence of ceramic fracture properties on porosity
journal, January 1993

  • Wagh, A. S.; Singh, J. P.; Poeppel, R. B.
  • Journal of Materials Science, Vol. 28, Issue 13, p. 3589-3593
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The microstructures of perthitic alkali feldspars revealed by hydrofluoric acid etching
journal, April 1994

  • Waldron, K.; Lee, M. R.; Parsons, I.
  • Contributions to Mineralogy and Petrology, Vol. 116, Issue 3, p. 360-364
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Characterization of the melt removal rate in laser cutting of thick-section stainless steel
journal, May 2010

  • Wandera, Catherine; Kujanpaa, Veli
  • Journal of Laser Applications, Vol. 22, Issue 2, p. 62-70
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Inert gas cutting of thick-section stainless steel and medium-section aluminum using a high power fiber laser
journal, August 2009

  • Wandera, Catherine; Salminen, Antti; Kujanpaa, Veli
  • Journal of Laser Applications, Vol. 21, Issue 3, p. 154-161
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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

  • Warren, T. M.; Armagost, W. K.
  • SPE Drilling Engineering, Vol. 3, Issue 2, p. 125-135
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Damage constitutive model for strain-softening rock based on normal distribution and its parameter determination
journal, October 2007

  • Cao, Wen-gui; Li, Xiang; Zhao, Heng
  • Journal of Central South University of Technology, Vol. 14, Issue 5, p. 719-724
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Rock Matrix Properties of the Ratcliffe Interval (Madison Limestone) Flat Lake Field, Montana
conference, April 2013

  • White, E. J.; Marchant, L. C.; Roberts, D. K.
  • SPE Rocky Mountain Regional Meeting
  • DOI: 10.2118/2127-MS

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

  • Wiercigroch, M.; Wojewoda, J.; Krivtsov, A. M.
  • Journal of Sound and Vibration, Vol. 280, Issue 3-5, p. 739-757
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Experimental measurement of surface temperatures during flame-jet induced thermal spallation
journal, January 1993

  • Wilkinson, M. A.; Tester, J. W.
  • Rock Mechanics and Rock Engineering, Vol. 26, Issue 1, p. 29-62
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Experiments in Thermal Spallation of Various Rocks
journal, January 1996

  • Williams, R. E.; Potter, R. M.; Miska, S.
  • Journal of Energy Resources Technology, Vol. 118, Issue 1, p. 2-8
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Heat transfer and phase change during picosecond laser ablation of nickel
journal, September 2002

  • Willis, David A.; Xu, Xianfan
  • International Journal of Heat and Mass Transfer, Vol. 45, Issue 19, p. 3911-3918
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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

  • Wu, X. Y.; Ramesh, K. T.; Wright, T. W.
  • International Journal of Solids and Structures, Vol. 40, Issue 17, p. 4461-4478
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Effects of microstructures on dynamic compression of Barre granite
journal, September 2008

  • Xia, K.; Nasseri, M. H. B.; Mohanty, B.
  • International Journal of Rock Mechanics and Mining Sciences, Vol. 45, Issue 6, p. 879-887
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Inverted S-shaped model for nonlinear fatigue damage of rock
journal, April 2009

  • Xiao, Jian-Qing; Ding, De-Xin; Xu, Gen
  • International Journal of Rock Mechanics and Mining Sciences, Vol. 46, Issue 3, p. 643-648
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Modeling of Laser Spallation Drilling of Rocks for Gas and Oil Well Drilling
conference, October 2005

  • Xu, Zhiyue; Yamashita, Yuichiro; Reed, Claude
  • SPE Annual Technical Conference and Exhibition
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Specific energy for pulsed laser rock drilling
journal, February 2003

  • Xu, Z.; Reed, C. B.; Konercki, G.
  • Journal of Laser Applications, Vol. 15, Issue 1, p. 25-30
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The Constrained Interpolation Profile Method for Multiphase Analysis
journal, May 2001

  • Yabe, Takashi; Xiao, Feng; Utsumi, Takayuki
  • Journal of Computational Physics, Vol. 169, Issue 2, p. 556-593
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Detection of Metals in the Environment Using a Portable Laser-Induced Breakdown Spectroscopy Instrument
journal, February 1996

  • Yamamoto, Karen Y.; Cremers, David A.; Ferris, Monty J.
  • Applied Spectroscopy, Vol. 50, Issue 2, p. 222-233
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Underwater Laser Welding by 4 kW CW YAG Laser
journal, October 2001

  • Yamashita, Yoshihiro; Kawano, Toru; Mann, Kurt
  • Journal of Nuclear Science and Technology, Vol. 38, Issue 10, p. 891-895
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An evaluation of the microcrack density of rocks by ultrasonic velocimetric method
journal, July 1985

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

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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

  • Yilbas, B. S.; Shuja, S. Z.; Budair, M. O.
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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

  • Yun, Yingwei; Jang, Il-Young; Tang, Liqiang
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An empirical relationship between thermal conductivity and elastic wave velocities in sandstone
journal, August 1993

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

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

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

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Microcrack interaction brittle rock subjected to uniaxial tensile loads
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A new thermal-shock-resistance model for ceramics: Establishment and validation
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Investigation of thermal fatigue behavior of thermal barrier coating systems
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Thermophysical and Thermomechanical Properties of Thermal Barrier Coating Systems
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High-Power ZBLAN Glass Fiber Lasers: Review and Prospect
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Jet Impingement Heat Transfer: Physics, Correlations, and Numerical Modeling
book, January 2006