Passive Seismic Tomography Using Induced Seismicity at a Petroleum Field in Oman
A borehole network consisting of 5 monitoring wells was used to monitor the induced seismicity at a producing petroleum field for a period of about 11 months. Nearly 5400 microseismic events were analyzed and utilized in imaging the reservoir based on a new doubledifference (DD) seismic tomograph...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Technical Report |
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Massachusetts Institute of Technology. Earth Resources Laboratory
2012
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| Online Access: | http://hdl.handle.net/1721.1/68567 |
| _version_ | 1826217333128953856 |
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| author | Kindy, Fahad Zhang, Haijiang Sarkar, Sudipta Toksoz, M. Nafi Kuleli, Huseyin Sadi Al-Kindy, Fahad |
| author2 | Massachusetts Institute of Technology. Earth Resources Laboratory |
| author_facet | Massachusetts Institute of Technology. Earth Resources Laboratory Kindy, Fahad Zhang, Haijiang Sarkar, Sudipta Toksoz, M. Nafi Kuleli, Huseyin Sadi Al-Kindy, Fahad |
| author_sort | Kindy, Fahad |
| collection | MIT |
| description | A borehole network consisting of 5 monitoring wells was used to monitor the induced
seismicity at a producing petroleum field for a period of about 11 months. Nearly 5400
microseismic events were analyzed and utilized in imaging the reservoir based on a new doubledifference
(DD) seismic tomography. The DD tomography method simultaneously solves for
event locations and Vp, Vs, and Vp/Vs models using absolute and differential P, S and S-P
arrival times. Microseismicity in the field was primarily caused by compaction of the reservoir in
and above the gas bearing formation and was distributed along the two major northeastsouthwest
(NE-SW) faults in the field. The model resolution analysis based on the checkerboard
test and the resolution matrix showed that the central part of the model was relatively well
resolved for the depth range of 0.7 to 1.1 km. Clear velocity contrasts were imaged across most
parts of the two NE-SW faults. Vp/Vs ratio estimations from the tomographic inversion were
low (<1.75) in the shallow depth range, likely due to lithology and gas content, whereas they
were large (>1.75) in the deeper part of the model, likely due to fluid saturated formation. In this
study seismic tomography showed a great potential for reservoir imaging and property estimation
using induced seismicity. |
| first_indexed | 2024-09-23T17:01:58Z |
| format | Technical Report |
| id | mit-1721.1/68567 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T17:01:58Z |
| publishDate | 2012 |
| publisher | Massachusetts Institute of Technology. Earth Resources Laboratory |
| record_format | dspace |
| spelling | mit-1721.1/685672019-04-12T21:43:34Z Passive Seismic Tomography Using Induced Seismicity at a Petroleum Field in Oman Kindy, Fahad Zhang, Haijiang Sarkar, Sudipta Toksoz, M. Nafi Kuleli, Huseyin Sadi Al-Kindy, Fahad Massachusetts Institute of Technology. Earth Resources Laboratory Zhang, Haijiang Sarkar, Sudipta Toksoz, M. Nafi Kuleli, Huseyin Sadi Al-Kindy, Fahad Tomography Microseismic A borehole network consisting of 5 monitoring wells was used to monitor the induced seismicity at a producing petroleum field for a period of about 11 months. Nearly 5400 microseismic events were analyzed and utilized in imaging the reservoir based on a new doubledifference (DD) seismic tomography. The DD tomography method simultaneously solves for event locations and Vp, Vs, and Vp/Vs models using absolute and differential P, S and S-P arrival times. Microseismicity in the field was primarily caused by compaction of the reservoir in and above the gas bearing formation and was distributed along the two major northeastsouthwest (NE-SW) faults in the field. The model resolution analysis based on the checkerboard test and the resolution matrix showed that the central part of the model was relatively well resolved for the depth range of 0.7 to 1.1 km. Clear velocity contrasts were imaged across most parts of the two NE-SW faults. Vp/Vs ratio estimations from the tomographic inversion were low (<1.75) in the shallow depth range, likely due to lithology and gas content, whereas they were large (>1.75) in the deeper part of the model, likely due to fluid saturated formation. In this study seismic tomography showed a great potential for reservoir imaging and property estimation using induced seismicity. Petroleum Development Oman 2012-01-13T18:21:39Z 2012-01-13T18:21:39Z 2009-05-19 Technical Report http://hdl.handle.net/1721.1/68567 Earth Resources Laboratory Industry Consortia Annual Report;2009-11 application/pdf Massachusetts Institute of Technology. Earth Resources Laboratory |
| spellingShingle | Tomography Microseismic Kindy, Fahad Zhang, Haijiang Sarkar, Sudipta Toksoz, M. Nafi Kuleli, Huseyin Sadi Al-Kindy, Fahad Passive Seismic Tomography Using Induced Seismicity at a Petroleum Field in Oman |
| title | Passive Seismic Tomography Using Induced Seismicity at a Petroleum Field in Oman |
| title_full | Passive Seismic Tomography Using Induced Seismicity at a Petroleum Field in Oman |
| title_fullStr | Passive Seismic Tomography Using Induced Seismicity at a Petroleum Field in Oman |
| title_full_unstemmed | Passive Seismic Tomography Using Induced Seismicity at a Petroleum Field in Oman |
| title_short | Passive Seismic Tomography Using Induced Seismicity at a Petroleum Field in Oman |
| title_sort | passive seismic tomography using induced seismicity at a petroleum field in oman |
| topic | Tomography Microseismic |
| url | http://hdl.handle.net/1721.1/68567 |
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