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Keywords: microseismic data
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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3425638
... phases. We applied our workflow to 50 minutes of microseismic data from a hydraulic fracturing monitoring campaign. The workflow provides high-quality picks for 689 out of a total of 805 detected events by using three representative template events. We validate the time picks by comparing event locations...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426685
... 8 Presentation Type: Poster upstream oil & gas shragge exploration geophysicist 10 reservoir characterization objective function velocity model incorrect velocity model artificial intelligence imaging condition microseismic data seg international exposition operator image...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3420270
... Noise in surface microseismic data usually has complicated features, signal reconstruction from various types of noise is very challenging for existing reconstruction techniques. In this paper, we propose to use a trilateral weighted sparse coding scheme within the block matching framework...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3420645
..., extracting potential events, and quality control of the detection results. We have implemented the MF algorithm on a microseismic data set with over 19,000 events detected on two monitoring wells. The MF detection results are compared with the results from STA/LTA. The MF algorithm is more efficient in event...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3421625
... of events from a small local broadband network. In this study we integrate a high-resolution microseismic dataset from the same treatment with that previous work, and demonstrate that the microseismic data provides an even more compelling case that aseismic slip plays a role in induced seismicity...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423107
... splitting in the raw microseismic data, so we manually picked Sv-wave arrivals of selected microseismic events and used them to constrain the anisotropic model. The average gamma parameter in the new VTI model increased to 0.2-0.25 in the target formation. The new VTI model reduced the average Sv-wave...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216741
... hydraulic fractures. Presentation Date: Wednesday, September 18, 2019 Session Start Time: 8:30 AM Presentation Start Time: 8:55 AM Location: 217B Presentation Type: Oral upstream oil & gas seismometer array microseismic data seg international exposition hydraulic fracturing annual...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3212130
... & gas characteristic simulation distribution characteristic china curvature seg 10 seg international exposition case study microseismic data well group fault stability evaluation fracture zone fracture Chen , Z. , L. Shi , and D. Xiang , 2016 , Mechanism...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215209
... ABSTRACT The accuracy of velocity models built from microseismic data can be increased by employing 3D anisotropic waveform inversion (WI). Here, we apply our previously developed elastic WI algorithm to velocity analysis of synthetic and field microseismic data from VTI (transversely...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995099
... aftershock sequence. However, cluster 2 was more swarm-like in character, lacking any mainshock event and containing no events with =2.0. The swarm-like behavior of cluster 2 resumed and intensified after the 4.1 event in cluster 1. Downhole microseismic data at cluster 2 reveal a series of lineaments...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997252
... Microseismic data is often used to locate fracture locations and their origin in time created by fracking. Although surface microseismic data can have large apertures and is easier to acquire than the borehole data, it often suffers from poor signal to noise ratio (S/R). Poor S/R poses...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2990944
...: Wednesday, October 17, 2018 Start Time: 1:50:00 PM Location: 205A (Anaheim Convention Center) Presentation Type: Oral grechka waveform inversion hydraulic fracture michel microseismic data middle layer reservoir characterization jarillo michel algorithm vti media oscar jarillo michel...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995006
... Microseismic data is being routinely collected as part of large pad scale hydraulic fracturing developments. The large lateral and sometimes, vertical spread of the pad wells allow the possibility of correlating observations made from the microseismicity during treatment phase with known...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997734
... through this interval, but the minor Pwave velocity changes suggest that the zone is in communication with the borehole, and therefore pressure was able to dissipate. Comparison with the microseismic data recorded between cross-well surveys shows interesting but debatable relationships...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998425
... hydraulic fracturing annual meeting seg international exposition upstream oil & gas annual international meeting case study traveltime computation seg 10 monitoring davis source mechanism microseismic data Andersen , E. , H. Davey , C. Steinhoff , and T. Davis...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997091
... from traditional interpretations. The methodology is not limited to microseismic data but can be used to assess and incorporate any pertinent objective and subjective information. Introduction Translating the microseismic event distribution into fracture dimensions, e.g. fracture height, is usually...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998279
... and a cross-validation (CV) process is implemented for automatic parameter setting. In the end, a group of synthetic and real microseismic data with different levels of complexity show the effectiveness of the proposed method. Presentation Date: Wednesday, October 17, 2018 Start Time: 1:50:00 PM Location...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17679956
...Monitoring hydraulic fracturing through the use of time-lapse, multicomponent seismic data and microseismic data, Wattenberg Field, Colorado Oscar Quezada, Anadarko Petroleum Corporation and Tom Davis*, Colorado School of Mines Summary Time-lapse, multicomponent seismic data were acquired...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17751709
... microseismic data acquired using a buried geophone string at the Aneth CO-EOR field. We first locate the microseismic events and invert for their moment tensors. We then use these information to perform LSERTM, and obtain high-resolution images of interfaces below and above these microseismic events...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17778941
... ABSTRACT This paper presents a random noise suppression method for multicomponent microseismic data by orthogonal matching pursuit of multiple measurement vectors (OMPMMV). Unlike the conventional orthogonal matching pursuit for single measurement vector (OMPSMV), this method assumes all...

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