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A unified framework for relative source localization using correlograms 

Poliannikov, Oleg V.; Prange, Michael; Malcolm, Alison E.; Djikpesse, Hugues (Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
We study the problem of determining an unknown event location relative to previously located events using a single monitoring array in a monitoring well. We show that using the available information about the previously ...
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Seismic imaging of hydraullically-stimulated fractures: A numerical study of the effect of the source mechanism 

Shabelansky, Andrey Hanan; Malcolm, Alison E.; Fehler, Michael; Bakku, Sudhish Kumar (Massachusetts Institute of Technology. Earth Resources Laboratory, 2012)
We present a numerical study of seismic imaging of hydraulically stimulated fractures using a single source from an adjacent fracturing-process. The source is either a point force generated from the perforation of the ...
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Analysis of location uncertainty for a microearthquake cluster: A case study 

Melo, Gabriela; Malcolm, Alison E.; Poliannikov, Oleg V.; Fehler, Michael (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
In many reservoirs, an increase in permeability and conductivity is achieved by hydraulic fracturing/stimulations which open cracks and fractures that then act as pathways for fluids to navigate in the subsurface. Mapping, ...
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Joint microseismic event location with uncertain velocity 

Poliannikov, Oleg V.; Prange, Michael; Malcolm, Alison E.; Djikpesse, Hugues (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
We study the problem of the joint location of seismic events using an array of receivers. We show that locating multiple seismic events simultaneously is advantageous compared to the more traditional approaches of locating ...
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Converted Phase Elastic Migration Velocity Analysis 

Shabelansky, Andrey Hanan; Malcolm, Alison E.; Fehler, Michael; Shang, Xuefeng; Rodi, William L. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
Multi-component elastic seismic data collected at large offsets have the potential to be used in seismic imaging and velocity analysis. In this study, we present an approach for converted-phase elastic-transmission migration ...
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Full-waveform Based Microseismic Event Detection and Signal Enhancement: The Subspace Approach 

Song, Fuxian; Warpinski, Norm R.; Toksoz, M. Nafi; Kuleli, Huseyin Sadi (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
Microseismic monitoring has proven to be an invaluable tool for optimizing hydraulic fracturing stimulations and monitoring reservoir changes. The signal to noise ratio (SNR) of the recorded microseismic data varies ...
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Downhole microseismic monitoring of hydraulic fracturing: a full-waveform approach for complete moment tensor inversion and stress estimation 

Song, Fuxian; Toksoz, M. Nafi; Li, Junlun (Massachusetts Institute of Technology. Earth Resources Laboratory, 2010)
Downhole microseismics has gained in popularity in recent years as a way to characterize hydraulic fracturing sources and to estimate in-situ stress state. Conventional approaches only utilize part of the information ...
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Hydraulic Fracture Monitoring: A Jonah Field Case Study 

Seher, T.; Rondenay, Stephane; Djikpesse, H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)
Hydraulic fracturing involves the injection of a fluid to fracture oil and gas reservoirs, and thus increase their permeability. The process creates numerous microseismic events, which can be used to monitor subsurface ...
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Imaging the Soultz Enhanced Geothermal Reservoir Using Double-Difference Tomography and Microseismic Data 

Concha, Diego Alvaro Pinero (Massachusetts Institute of Technology. Earth Resources Laboratory, 2010-06)
We applied the double-difference tomography method to image the P and S-wave velocity structure of the European Hot Dry Rock geothermal reservoir (also known as the Soultz Enhanced Geothermal System) at Soultz-sous-Forets, ...
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Location Of Microearthquakes Induced By Hydraulic Fracturing 

Rodi, William; Li, Yingping; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1993)
This paper examines the problem of locating microearthquakes induced by hydraulic fracturing using seismic arrival time data. In addition to the use of absolute arrival times measured for individual events, we consider ...
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AuthorMalcolm, Alison E. (10)Toksoz, M. Nafi (9)Kuleli, Huseyin Sadi (7)Song, Fuxian (6)Zhang, Haijiang (6)Poliannikov, Oleg V. (5)Djikpesse, Hugues (4)Fehler, Michael (4)Li, Junlun (4)Melo, Gabriela (4)... View MoreSubject
Microseismic (25)
Inversion (9)Fractures (7)Interferometry (6)Imaging (3)Tomography (2)VSP (2)4D (1)Geomechanics (1)Geothermal (1)... View MoreDate Issued2010 - 2013 (19)2000 - 2009 (4)1993 - 1999 (2)Has File(s)
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