composite5

PUBLICATIONS & PRESENTATIONS

J. Shemeta

B. Langan

 

J. Shemeta

J. Shemeta and J. Boak, 4-D Seismology of Induced Earthquakes in Oklahoma: Developments at a Geopolitical Hypocenter, Key Note Speakers, DGS-RMAG 3D Seismic Symposium, Denver, CO, March 3, 2016, Colorado Convention Center.

J. Shemeta, Induced Seismicity in Oil and Gas Operations: Recent Activity, Monitoring and Regulations, presented at AAPG/DEG meeting, 31 May- 3 June, 2015, Denver, CO.

J. Shemeta, Injection-induced seismicity –Is something lurking in your basement?, presented at SPE Workshop Optimizing Liquids-Rich Development The Journey Continues, 20-22 May 2015, Palos Verdes, CA.

J. Shemeta, “Did the Earth Move? Induced Seismicity in Oil and Gas Operations”, Energy Litigation, American Bar Association Section of Litigation, Spring 2015, Vol 14. No. 3.

J. Shemeta, invited panelist, “Injection Wells and Induced Seismicity”, 13th Annual Energy Litigation Conference, presented by the Institute for Energy Law, Nov. 6, 2014, Houston, TX.
L. Johnson, J. Rountree and J. Shemeta, Newfield’s Williston Buried Array Microseismic; Pushing the Envelope and Integrating Data, RMS-AAPG Annual Meeting, July 20-22, 2014, Denver, CO.

Shemeta, J., M. Leidig, and D. Baturan, Passive Seismic Observations at Grand Bayou, Louisiana, USA Associated with the Failure of the Oxy Geismar #3 Solution Cavern, SMRI Fall Conference 2013, Avignon France 30 September-1 October, p. 143-152.

Warneke, J., J. Shemeta and K. Hill, Seismic Methods to Address the Cavern Collapse and Sinkhole - Napoleonville Dome, SMRI Spring Conference, Lafayette, LA, May 2013.

Induced Seismicity Potential in Energy Technologies, National Academies Press, 2013, (report committee member).

Shemeta J. E, B. Goodway, M. Willis, and W. Heigl, An introduction to this special section: passive seismic and microseismic - part 2, The Leading Edge, 1428-1435, 2012.

Shemeta, J. E., E. A. Eide, M. W. Hitzman, D. D. Clarke, E. Detournay, J. H. Dieterich, D. K. Dillon, S. J. Green, R.M. Habiger, R. K. McGuire, J. K. Mitchell, J. L. Smith, J. R. Ortego, and C. R. Gibbs. The Potential for Induced Seismicity in Energy Technologies, The Leading Edge, 31(12), 1438–1444.

Shemeta, J., Keeping an ear to the ground- Instrumentation and Monitoring for Induced Seismicity. Presented at SPE/SEG Injection Induced Seismicity meeting, 12-14 September 2012, Broomfield, CO.

Sarkar, Sudipta, Andrew Jupe, Julie Shemeta, Anca Rosca, and Robert Langan, Uncertainty in microseismic event source locations associated with a fracture stimulation in a tight sand when using one, two, or more borehole geophone arrays, Istanbul International Geophysical Conference and Oil and Gas Exposition, 17-19 September, 2012, Istanbul, Turkey.

Shemeta, Julie, Murray W. Hitzman, Elizabeth A. Eide, Donald D. Clarke, Emmanuel Detournay, James H. Dieterich, David K. Dillon, Sidney J. Green, Robert M. Habiger, Robin K. McGuire, James K. Mitchell, John L. (Bill) Smith, and Jason R. Ortego and Courtney R. Gibbs, The Potential for Induced Seismicity in Energy Technologies, SPE/SEG Injection Induced Seismicity meeting, 12-14 September 2012, Broomfield, CO.

Shemeta, J. (invited) Overview of microseismic monitoring of hydraulic fracturing for unconventional oil and gas plays, presented at the American Geophysical Union Fall Meeting, 5-9 December 2011, San Francisco, CA.

Rosca,A, S. Sarkar, S., A. Jupe, J. Shemeta, and B. Langan, Uncertainty In Microseismic Event Locations When Using Two Borehole Geophone Arrays: Fracture Stimulation In A Tight Sand, Presented at the SEG Workshop on Gas Shales, Chengdu, China, April 1, 2011.

Shemeta, J. (invited), The History of Microseismic Technology and the Impact it has made in Unconventional Reservoirs, Global Theater presentation, Society of Exploration Geophysicists Annual meeting 2010, Denver, CO.

Waldron, A., J. Shemeta, E. Gaucher, S. Hunt, D. Cooke, and S. Chipperfield, Not a shot in the dark: Low‐cost demonstration of microseismic feasibility in a high‐risk environment. SEG Technical Program Expanded Abstracts 2010, p. 2120-2124.

Shemeta, J., (invited), Induced fracture mapping with microseismic: background and case histories, Denver Well Log Society Spring workshop: Formation Evaluation Challenges in the Rockies, March 10, 2010.

Shemeta, J. and P. Anderson, It’s a matter of size: Magnitude and moment estimates for microseismic data, The Leading Edge, 29, p. 296-302, 2010.
Reiter, D., W. Rodi and J. Shemeta, Assessing the uncertainties of borehole microseismic event locations in hydraulic fracturing applications, CSEG Microseismic Workshop: Breaking Preconceptions, 13-15 Oct. 2009.

Willis, M.E., Willis, K.M., Burns, D.R., J. Shemeta, N.J. House, Fracture quality image from 4D VSP and microseismic data at Jonah Field, WY, SEG Houston 2009 International Exposition and Annual Meeting, Houston TX, SEG expanded abstracts 28 (2009), p. 4110-4114.

Weijers, Y. Kama, J. Shemeta, S. Cumella, Bigger is better- Hydraulic fracturing in the Mesaverde formation in the Piceance Basin, AAPG Annual Convention and Exhibition, Denver CO, June, 2009.
J. E. Shemeta, S. C. Maxwell, , N. R. Warpinski, C. Waltman, Z. Phillips, T. Riebel, J. Kinser, G. Hinds, T. Green, Stacking Seismograms to Improve Microseismic Images, SPE 108103-PA, SPE Production & Operations, p. 156-164, Feb. 2009.

S.C. Maxwell, J. Du and J. Shemeta, Passive seismic and surface monitoring of geomechanical deformation associated with steam injection, The Leading Edge, 27, p. 1176, 2008.

Willis, M.E., Burns, D.E, Willis, K.M., House, N.J. and J. Shemeta, Hydraulic fracture quality from time lapse VSP and microseismic data, SEG Expanded Abstracts 27, p. 1565, 2008.

S.C. Maxwell, J. Du and J. Shemeta, Monitoring Steam Injection Deformation Using Microseismicity and Tiltmeters, presented at San Francisco 2008, US Rock Mechanics Symposium, June 29-July 2, 2008, ARMA 08-335.

S.C. Maxwell, J. Shemeta, E. Campbell and D. Quirk, Microseismic Deformation Rate Monitoring, 2008 SPE Annual Technical Conference and Exhibition held in Denver, Colorado, USA, 21–24 September 2008, SPE 116596.

N. House and J. Shemeta, Understanding hydraulic fractures in tight-gas sands through the integration of borehole microseismic data, three-dimensional surface seismic data, and three-dimensional vertical seismic profile data: A Jonah field case study, in S. P. Cumella, K. W. Shanley, and W. K. Camp, eds., Understanding, exploring and developing tight-gas sands—2005 Vail Hedberg Conference : AAPG Hedberg Series, no. 3, p. 77–86.

S.C. Maxwell, J. Du, J. Shemeta, U. Zimmer, N. Boroumand, and L. Griffin, Passive seismic and surface deformation monitoring of steam injection, First Break, vol. 26, p. 53-59, May 2008.

M.E. Willis, D.R. Burns, J. Shemeta, N.J. House, Fracture Quality Images From 4D VSP and Microseismic Data at Jonah Field, WY, SEG Technical Program Expanded Abstracts 2008: pp. 1565-1569.

M. E. Willis, D.R. Burns, K.M. Willis, N. J. House, J. Shemeta, 2008, Hydraulic fracture quality using microseismic and time lapse 3-D VSP data to locate scattered seismic energy: Jonah Field, Wyoming, Expanded Abs. 14th Ann. 3D Seismic Symposium, Rocky Mtn. Assoc. Geol., Denver, CO., March 17, 2008.

S.C. Maxwell, Du, J., Shemeta, J., 2008, Monitoring Steam Injection Deformation Using Microseismicity and Tiltmeters, 42nd US Rock Mechanics Symposium and 2nd U.S.-Canada Rock Mechanics Symposium, held in San Francisco, June 29-July 2, 2008, ARMA 08-335

J. Shemeta, S. Maxwell, N. Warpinski, G. Hinds, J. Huck, J. Kinser, S. Quimby, C. Waltman, 2007. Digital Stacking of Passive Seismograms, SEG Expanded Abstracts 26, 1302-1306, 2007.

S. Maxwell, J. Du, J. Shemeta, U. Zimmer, N. Boroumand and L. Griffin, Passive Seismic and Surface Deformation Monitoring of Steam Injection, SEG Expanded Abstracts 26, p. 1327, 2007.

J.E. Shemeta, T.L. Davis, M. Roth, R.B. Riley, Seeing Beyond the Frac: Integration of hydraulic fracture mapping with multi component 3D seismic data, 2007 SPE Rocky Mountain Oil & Gas Technology Symposium, Denver, Colorado, U.S.A., 16–18 April 2007, SPE 108160.

S.C. Maxwell, J. Shemeta and N. House, Integrated Anisotropic Velocity Modeling Using Perforation Shots, Passive Seismic and VSP Data, SEG Expanded Abstracts 2006 Annual Meeting , p. 301-301.
Maxwell, S. C., J. Shemeta, and N. House, Integrated Anisotropic Velocity Modeling Using Perforation Shots, Passive Seismic and VSP Data, 68th EAGE Conference and Exhibition incorporating SPE EUROPEC 2006, 12 June 2006.
Session: Passive Seismic J. E. Shemeta, , S. Maxwell, , N. R. Warpinski, , S. Quimby, T. Riebel, , Z. Phillips, J. R. Kinser, G. Hinds, C.K. Waltman, Stacking Seismograms To Improve Microseismic Images, 2007 SPE Rocky Mountain Oil & Gas Technology Symposium, Denver, Colorado, U.S.A., 16–18 April 2007, SPE 108103.

T. Davis, M. Roth and J. Shemeta, Renaissance at Rulison Field – Visualization of 9C/4-D Seismic with Borehole Microseismic Data, 2007, Expanded Abs. 13th Annual 3D Seismic Symposium, Rocky Mtn. Assoc. Geol., Denver, CO, 2007.

S. Maxwell, J. Du, J. Shemeta, U. Zimmer, N. Boroumand, and L. Griffin, Passive Seismic and Surface Deformation Monitoring of Steam Injection, EAGE 2006 Dubai meeting on Passive Seismic.

S. Maxwell, J. Shemeta, N. House, Integrated Anisotropic Velocity Modeling Using Perforation Shots, Passive Seismic and VSP Data, CSEG meeting, Calgary, 2006.

S. Maxwell, C. Waltman, and J. Shemeta, Digital array filtering to improve passive seismic signal quality, 2005 SEG Expanded Abstracts, 25, p. 1257-1260.

N. House, B. Fuller, J. Shemeta, Passive Borehole Seismic, Surface and Borehole Tilt-Meter, 3-D and 3-D VSP Applied to Management of a Tight Gas Reservoir, Green River Basin, Wyoming, Denver Geophysical Society and Rocky Mountain Area Geologist 11th annual 3D Symposium, February, 2005, Denver Colorado.

N. House, J. Shemeta, B. Fuller, S. Wolfe, Shake, Rattle and Tilt: Understanding hydraulic fractures in tight gas sands, AAPG HEDBERG CONFERENCE, Understanding Exploring and Developing Tight Gas Sands, April 24-29, 2005, Vail, Colorado.

House, N., B. Fuller, J. Shemeta, and M. Sterling, Integration of Surface Seismic, 3D VSP, and Microseismic Hydraulic Fracture Mapping to Improve Tight Gas Sand Production in a Complex Reservoir: 74th Annual International Meeting, SEG, Expanded Abstracts , p. 414-416.

Ganefianto, N. and J. E. Shemeta, Development strategy for the Awibengkok Geothermal Field, West Java, Indonesia. Indonesian Petroleum Association Proceedings 1996, Volume 2, p. 453-462.

Zajac, B., J.M. Stock, and J.E. Shemeta, Cook Inlet stress state from breakouts in deviated boreholes, EOS, V. 75, n 44, pp. 592, 1994.

Shemeta, J.E., W.B. Minner, R.G. Hickman, P.A. Johnston, C.A. Wright and N. Wachi, Geophysical monitoring during a hydraulic fracture in a fractured reservoir: Tiltmeter and passive seismic results, Proceedings of the Eurock ’94, Balkema, Rotterdam, pp. 929-944, 1994.

Shemeta, J.E., New Analyses of Three-Component Digital Data for Aftershocks of the 1983 Borah Peak, Idaho, Earthquake: Source Parameters and Refined Hypocenters, M.S. Thesis, 128 pp., University of Utah, Salt Lake City, Utah, 1989.

Weaver, C.S., W.C. Grant and J.E. Shemeta, Local Crustal Extension at Mount St. Helens, Washington, Journal of Geophysical Research, Vol. 92, p. 10,170-10,178, 1987.

Shemeta, J.E. and C.S. Weaver, Seismicity Accompanying the May 18, 1980 Eruption of Mt. St. Helens, Washington, in “Mount St. Helens: Five Years Later”, edited by S.A.C. Keller, p. 44-58, Eastern Washington University Press, 1986.

 

B. Langan

1. "Simultaneous Air Blast and Ground-Motion Response", C. H. Dowding, C. S. Fulthorpe, and R. T. Langan, Proceedings of the American Society of Civil Engineers, Journal of the Structural Division, STII, 2363 ( 1981).

2. "Thermal Evolution of the Earth: Some Recent Developments", N. H. Sleep and R. T. Langan, In Advances in Geophysics, 23, B. Saltzman (Ed.), Academic Press, New York, New York (1981).

3. "A Kinematic Thermal History of the Earth's Mantle", R. T. Langan, and N. H. Sleep, Journal of Geophysical Research, 87, 9225 (1982).

4. "Seismic Tomography: The Accurate and Efficient Tracing of Rays Through Heterogeneous Media", R. T. Langan, I. Lerche, R. T. Cutler, T. N. Bishop, and N. J. Spera, Expanded Abstracts of the 1984 SEG International Meeting (1984).

5. "Seismic Imaging of the Wind River Mountains, Wyoming", A. R. Leeds, D. B. Jovanovich, J. Sharry, R. T. Langan, N. R. Hill, G. M. Jones, and T. M. Guidish, Proceedings of the China Petroleum Society/Society of Exploration Geophysicists 1985 Meeting, Beijing, China (1985).

6. "A Tomographic Solution to the Traveltime Problem in General Inverse Seismology", R. T. Cutler, R. T. Langan, P. A. Love, and T. N. Bishop, in Advances in Geophysical Data Processing, 2, M. Simaan (Ed.), 199-221 (1985).

7. "Tomographic Determination of Velocity and Depth in Laterally Varying Media", T. N. Bishop, K. P. Bube, R. T. Cutler, R. T. Langan, P. L. Love, J. R. Resnick., R. T. Shuey, D. A. Spindler, and H. W. Wyld, Geophysics, 50, 903-923 (1985).

8. "Tracing of Rays Through Heterogeneous Media: An Accurate and Efficient Procedure", R. T. Langan, I. Lerche, and R. T. Cutler, Geophysics, 50, 1456-1465 (1985).

9. "The Tracing of Rays Through Heterogeneous Media", R. T. Langan, I. Lerche, R. T. Cutler, The Proceedings of the Offshore Technology Conference, 497-504 (1985).

10. "Well Determined and Poorly Determined Features in Seismic Reflection Tomography II", Expanded Abstracts of the 1985 SEG International Meeting, K. P. Bube, R. T. Langan, J. R. Resnick, R. T. Shuey, and D. A. Spindler (1985).

11. "Enhanced Imaging of the COCORP Seismic Line, Wind River Mountains", Reflection Seismology: A Global Perspective, Geodynamics Series Volume 13, 223-236, J. Sharry, R. T. Langan, D. B. Jovanovich, G. Jones, N. R. Hill, and T. M. Guidish (1986).

12. "Cross-Well Seismology: A New Production Tool", B. N. P. Paulsson and R. T. Langan, Proceedings of the Seventeenth Annual Convention of the Indonesian Petroleum Association, October 25-27, Jakarta, 375-386 (1988).

13. "Cross-Well Seismology: A New Production Tool", R. T. Langan, B. N. P. Paulsson, J. P. Stefani, E. G. Finnstrom, and J. W. Fairborn, Proceedings of the Joint Meeting of the Society of Exploration Geophysicists and the China Petroleum Society, Daqing Oil Field, September 6-10, D. Johnston (Ed.) (1988).

14. "Unique Determination of Reflector Depths in Seismic Reflection Tomography", K. P. Bube, R. T. Langan, and J. R. Resnick, Expanded Abstracts of the 1989 SEG International Meeting, 918-921 (1989).

15. "Hybrid L1/L2 Data Fitting with Applications to Tomography", K. B. Bube and R. T. Langan, Expanded Abstracts of the 1990 SEG International Meeting, 69-73 (1989).

16. "Shear-Wave Cross-Well Reflection Imaging in West Texas", S. K. Lazaratos, R. T. Langan, J. M. Harris, and B. P. Marion, Expanded Abstracts of the 1994 SEG International Meeting, 289-293 (1994).

17. "A Continuation Approach to Regularization for Traveltime Tomography", K. P. Bube and R. T. Langan, Expanded Abstracts of the 1994 SEG International Meeting, 980-983 (1994).

18. "High Resolution Imaging of Carbonate Reservoirs Using Cross-Well Seismology", R. T. Langan, J. M. Harris, W. M. Bashore, D. L. Goggin, P. J. Griffith, S. K. Lazaratos, R. C. Nolen-Hoeksema, J. W. Rector, M. Van Schaack, K. E. Tucker, Proceedings of the 13th Annual Saudi Aramco Laboratories Technical Exchange Meeting, Saudi Arabia (1994).

19. "Theoretical and Numerical Issues in the Determination of Reflector Depths in Seismic Reflection Tomography", K. P. Bube, R. T. Langan, J. R. Resnick, Journal of Geophysical Research (Red), 100, B7, 12449-12458, (1995).

20. "High Resolution Imaging of a West Texas Reservoir: Part I - Project Summary and Interpretation", J. M. Harris, R. C. Nolen-Hoeksema, R. T. Langan, M. Van Schaack, S. K. Lazaratos, and J. M. Rector III, Geophysics, 60, 667-681 (1995).

21. "High Resolution Imaging of a West Texas Reservoir: Part V - Core Analysis", R. C. Nolen-Hoeksema, J. M. Harris, Z. Wang, and R. T. Langan, Geophysics, 60, 712-726, (1995).

22. "Crosswell reflection traveltime tomography: A field data demonstration", M. A. Van Schaack, J. M. Harris, K. P. Bube, and R. T. Langan, Expanded Abstracts of the 65th SEG International Meeting, 65-68 (1995).

23. "Resolution of crosswell tomography with transmission and reflection traveltimes", K. P. Bube, and R. T. Langan, Expanded Abstracts of the 65th SEG International Meeting, 77-80 (1995).

24. "Crosswell seismic imaging in the Permian Basin, West Texas", R. T. Langan, J. M. Harris, S. K. Lazaratos, T. L. Jensen, and M. A. Van Schaack, Expanded Abstracts of the 65th SEG International Meeting, 81-84 (1995).

25. "Processing and migration of a west Texas crosswell data set", T. Nemeth, W. Cai, and R. T. Langan, Expanded Abstracts of the 65th SEG International Meeting, 457-460 (1995).

26. "Geostatistical Integration of Crosswell Data for Carbonate Reservoir Modeling, McElroy Field, Texas", W. M. Bashore, R. T. Langan, K. E. Tucker, and P. J. Griffith, in Hydrocarbon Reservoir Characterization: Geologic Framework and Flow Unit Modeling, SEPM Short Course No. 34, E. L. Stoudt and P. M. Harris (Ed.), 199-225 (1995).

27. "Hybrid L1/L2 Minimization with Applications to Tomography", K. P. Bube and R. T. Langan, Geophysics, 62, 1183-1195, 1996.

28. "Experimental verification of seismic monitoring of CO2 injection in carbonate reservoirs, J. M. Harris, R. T. Langan, T. Fasnacht, D. Melton, B. Smith, J. Sinton, and H. Tan, Expanded Abstracts of the 66th SEG International Meeting, 1870-1872, 1996.

29. "Seismic monitoring of CO2 flooding in a carbonate reservoir rock: Rock physics study", Z. Wang, M. E. Cates, and R. T. Langan, Expanded Abstracts of the 66th SEG International Meeting, 1886-1889, 1996.

30. "Crosswell Seismic Profiling: Principle to Application", J.M. Harris and R.T. Langan, AAPG Explorer, January 1997.

31. "Imaging of a stratigraphically complex carbonate reservoir with crosswell seismic data", R. T. Langan, S. K. Lazaratos, J. M. Harris, A. A. Vassiliou, T. L. Jensen, and J. W. Fairborn, Carbonate Seismology, Geophysical Development Series, No. 6, Society of Exploration Geophysicists, Tulsa, OK, 417-424, I. Palaz (ed.), 1997.

32. "Crosswell seismic imaging in Buena Vista Hills, San Joaquin Valley: A case history", R. T. Langan, D. R. Julander, M. F. Morea, C. M. Addington, and S. K. Lazaratos, Expanded Abstracts of the 68th SEG International Meeting, 353-356, 1998.

33. "Seismic monitoring of a CO2 flood in a carbonate reservoir: A rock physics study", Geophysics, Z. Wang, M. E. Cates, and R. T. Langan, 63, 1604-1617, 1998.

34. "On a continuation approach to regularization for crosswell tomography", K. P. Bube and R. T. Langan, Expanded Abstracts of the 69th SEG International Meeting, 1295-1298, 1999.

35. "Time-lapse imaging of steam and heat movement in the Cymric 36W Cyclic Steam Pilot using crosswell seismology", J. F. Bair, S. J. Johnson, D. R. Julander, R. T. Langan, J. S. Meyer, and J. K. Washbourne, Expanded Abstracts of the 69th SEG International Meeting, 1643-1646, 1999.

36. "The Instrumented Oil Field: The implications for borehole geophysics", Invited Paper to the Recent Advances and the Road Ahead Special Session, R. T. Langan, K. C. Gester, R. F. Heming, D. O. Johnson, D. R. Julander, Expanded Abstracts of the 69th SEG International Meeting, 1990-1994, 1999.

37. "Time-lapse reflection and velocity imaging in the Lost Hills Steam Pilot using crosswell seismology", R. T. Langan, K. C. Gester, M. A. Jervis, D. R. Julander, J. S. Meyer, M. F. Morea, and T. Nemeth, Expanded Abstracts of the 70th SEG International Meeting, 1556-1559, 2000.

38. "3-D VSP migration imaging with constraints in Lost Hills, California", T. Nemeth, B. E. Cornish, W. C. Kempner, and R. T. Langan, Expanded Abstracts of the 70th SEG International Meeting, 1560-1563, 2000.

39. "On the velocity vs. depth ambiguity in limited aperture reflection tomography", K. P. Bube, R. T. Langan, and T. Nemeth, Expanded Abstracts of the 72nd SEG International Meeting, IT1.4, 4 pp., 2002.

40. "Beam methods for predictive suppression of seismic multiples in deep water", N. R. Hill, R. T. Langan, T. Nemeth, and M. Zhao, Expanded Abstracts of the 72nd SEG International Meeting, SP3.7, 4 pp., 2002.

41. "An expanding wavefront method for solving the eikonal equations in anisotropic media", Y. Wang, T. Nemeth, and R.T. Langan, Expanded Abstracts of the 74th SEG International Meeting, AN1.6, 115-118, 2004.

42. "Analysis of the spectral hole in velocity vs. depth resolution for reflection traveltime tomography with limited aperture", K.P. Bube, R.T. Langan, T. Nemeth, Geophysics, 70, U37-U45, 2005.

43. "An expanding wavefront method for solving the eikonal equations in general anisotropic media", Y. Wang, T. Nemeth, and R.T. Langan, Geophysics, 71, T129-T135, 2006.

44. "Resolution of slowness and reflectors in crosswell tomography with transmission and reflection traveltimes", K.P. Bube and R. T. Langan, Geophysics, 73, VE321-VE336, 2008.

45. "A continuation approach to regularization of ill-posed problems with application to crosswell-traveltime tomography", K.P. Bube and R. T. Langan, Geophysics, 73, VE337-VE352, 2008.

46. "Introduction to the supplement on velocity estimation for depth imaging", W. S. Harlan, R. T. Langan, T. Nemeth, Geophysics, 73, VE1-VE3, 2008.

47. "Uncertainty in microseismic event source locations associated with a fracture stimulation in a tight sand", S. Sarkar, R. T. Langan, A. Jupe, J. Shemeta, and A. Rosca, Expanded Abstracts of the SEG International Geophysical Conference in Istanbul 2012, 4 pp.

48. "A short history of the shale gas phenomenon in North America", R.T. Langan, Expanded Abstracts of the 23rd International Geophysical Conference and Exhibition of the Australian SEG-PESA, Melbourne, 2013, 3 pp.

49. "Case Study: The use of well control and two different VSP processing methods to characterize the location of the eastern flank of the Markham salt dome", J.R. Warneke, M. Karrenbach, R.T. Langan, K. Loof, Salt Mining Research Institute, Proceedings of the Spring 2015 Technical Conference, Rochester, New York, USA, 14 pp.

50. "Analysis of the null space in residual curvature inversion in traveltime tomography", K.P.
Bube and R.T. Langan, in preparation, for Geophysics.

+1 (303) 910-0760

This email address is being protected from spambots. You need JavaScript enabled to view it.

linkedin

 
 
 

Copyright 2016

MEQGeo Inc.