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Challenges for microseismic monitoring
SEG Technical Program Expanded Abstracts 2011, 2011We review important challenges in microseismic monitoring and interpretation of the microseismic events. We start with locations of microseismic events and the impact of temporal changes in velocity during hydraulic fracturing and consider effects of uncertainty in deviation surveys on both downhole and surface monitoring.
Leo Eisner +2 more
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Microseismic monitoring — Introduction
Geophysics, 2015Most papers the readers find in this special section were presented at the First International Workshop on Microseismic Technology held in Asheville, North Carolina, USA, on 17–22 August 2014. The workshop’s organizing and technical program committee consisted of Werner Heigl (Apache Corporation), Vladimir Grechka (Marathon Oil), Leo Eisner (IRSM ...
Vladimir Grechka +4 more
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Excavation-induced microseismicity: microseismic monitoring and numerical simulation
Journal of Zhejiang University SCIENCE A, 2012The volume of influence of excavation at the right bank slope of Dagangshan Hydropower Station, southwest China, is essentially determined from microseismic monitoring, numerical modeling and conventional measurements as well as in situ observations. Microseismic monitoring is a new application technique for investigating microcrackings in rock slopes.
Nu-wen Xu +6 more
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Microseismic Monitoring of CO2 Storage
Proceedings, 2012Geomechanical deformation, if it creates and/or reactivates faults and fractures, can provide a leakage pathway for CO2 to escape the reservoir. By monitoring microseismicity in and around the reservoir, the risks of leakage can be assessed. Although it is a mature technology for monitoring hydraulic fracturing in tight gas reservoirs, microseismic ...
Verdon, J., Kendall, J M, Stork, A.
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A Validation Assessment of Microseismic Monitoring
SPE Hydraulic Fracturing Technology Conference, 2016AbstractMicroseismic monitoring of hydraulic fracturing in unconventional reservoirs is a valuable tool for delineating the effectiveness of stimulations, completions, and overall field development. Important information, such as fracture azimuth, fracture length, height growth, staging effectiveness, and many other geometric parameters, can typically ...
N. R. Warpinski, Steve Wolhart
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Microseismic Monitoring of the Valhall Reservoir
61st EAGE Conference and Exhibition, 1999Microseismic monitoring is an emerging technology within the hydrocarbon industry which is being driven by operator requirements for real-time information on hydraulic and geomechanical processes taking place within the reservoir in the interwell region.
B. C. Dyer +4 more
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Microseismic Monitoring with a Surface Array
First EAGE Passive Seismic Workshop - Exploration and Monitoring Applications, 2006We propose an alternative to down hole microseismic monitoring that uses large arrays of surface geophones. The method presents several logistical and technical advantages over more common down hole techniques, but has its drawbacks as well. We have employed the technique in more than 16 projects to date and present here some of the results and ...
P. Duncan, J. Lakings
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Microseismic Monitoring - Technology State of Play
Proceedings of SPE Unconventional Gas Conference, 2010Abstract Microseismic monitoring has been largely accepted as an important adjunct to the hydraulic fracturing of unconventional gas reservoirs. Both surface and downhole methodologies are now common for the performance of such monitoring, each with its advantages and challenges. This paper discusses the state of the technology today and
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Uncertainty in surface microseismic monitoring
SEG Technical Program Expanded Abstracts 2011, 2011SUMMARY Uncertainty in a migration based approach to surface and near surface microseismic monitoring occurs in two ways: uncertainty in the validity of detected events and uncertainty in the estimated position of the event. Synthetic modelling and comparison to case studies show that sign-to-noise-ratio is a key indicator of both types of the ...
Michael Thornton, Leo Eisner
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Microseismic Deformation Rate Monitoring
Proceedings, 2009Microseismic monitoring of hydraulic fractures is an important tool for imaging fracture networks and optimizing the reservoir engineering of the stimulation. The range of magnitudes of the recorded microseisms depends at the lower limit on the array sensitivity; while the upper limit varies significantly from site to site.
D. Kuehn, H.N. Gharti, V. Oye, M. Roth
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