A multi faceted study of reservoir anisotropy using microseismic data

O. H. Al-Harrasi; J M Kendall; J. Wookey; A. Wuestefeld; J. Verdon

A multi faceted study of reservoir anisotropy using microseismic data

O. H. Al-Harrasi^*, J M Kendall, J. Wookey, A. Wuestefeld, J. Verdon

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

Abstract

In this study we present a range of shear-wave splitting (SWS) techniques applied to a microseismic data set from a gas field. These include SWS inversion using rock physics modelling, SWS tomography and frequency-dependent anisotropy modelling. The aim is to characterize the field fracture network. Overall, our results agree with the knowledge about the field geology and those obtained from other geophysical techniques. The magnitude of anisotropy is controlled by lithology and proximity to the NE-SW graben faults that cut the field formations. The predominant fracture strikes are consistent with the trends of the main faults (NE-SW and NW-SE) and the majority of the observations indicate subvertical fracture dip (>70o). The study highlights the potential of shear-wave splitting in microseismic data as a tool to characterise hydrocarbon reservoirs.

Original language	English
Title of host publication	3rd Passive Seismic Workshop: Actively Passive!
Publisher	European Association of Geoscientists and Engineers, EAGE
Publication status	Published - 1 Jan 2011
Event	3rd Passive Seismic Workshop: Actively Passive! - Athens, Greece Duration: 27 Mar 2011 → 30 Mar 2011

Conference

Conference	3rd Passive Seismic Workshop: Actively Passive!
Country/Territory	Greece
City	Athens
Period	27/03/11 → 30/03/11

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@inproceedings{72a12615891c414fa64aa48a4297c5b3,

title = "A multi faceted study of reservoir anisotropy using microseismic data",

abstract = "In this study we present a range of shear-wave splitting (SWS) techniques applied to a microseismic data set from a gas field. These include SWS inversion using rock physics modelling, SWS tomography and frequency-dependent anisotropy modelling. The aim is to characterize the field fracture network. Overall, our results agree with the knowledge about the field geology and those obtained from other geophysical techniques. The magnitude of anisotropy is controlled by lithology and proximity to the NE-SW graben faults that cut the field formations. The predominant fracture strikes are consistent with the trends of the main faults (NE-SW and NW-SE) and the majority of the observations indicate subvertical fracture dip (>70o). The study highlights the potential of shear-wave splitting in microseismic data as a tool to characterise hydrocarbon reservoirs.",

author = "Al-Harrasi, {O. H.} and Kendall, {J M} and J. Wookey and A. Wuestefeld and J. Verdon",

year = "2011",

month = jan,

day = "1",

language = "English",

booktitle = "3rd Passive Seismic Workshop: Actively Passive!",

publisher = "European Association of Geoscientists and Engineers, EAGE",

note = "3rd Passive Seismic Workshop: Actively Passive! ; Conference date: 27-03-2011 Through 30-03-2011",

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TY - GEN

T1 - A multi faceted study of reservoir anisotropy using microseismic data

AU - Al-Harrasi, O. H.

AU - Kendall, J M

AU - Wookey, J.

AU - Wuestefeld, A.

AU - Verdon, J.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - In this study we present a range of shear-wave splitting (SWS) techniques applied to a microseismic data set from a gas field. These include SWS inversion using rock physics modelling, SWS tomography and frequency-dependent anisotropy modelling. The aim is to characterize the field fracture network. Overall, our results agree with the knowledge about the field geology and those obtained from other geophysical techniques. The magnitude of anisotropy is controlled by lithology and proximity to the NE-SW graben faults that cut the field formations. The predominant fracture strikes are consistent with the trends of the main faults (NE-SW and NW-SE) and the majority of the observations indicate subvertical fracture dip (>70o). The study highlights the potential of shear-wave splitting in microseismic data as a tool to characterise hydrocarbon reservoirs.

AB - In this study we present a range of shear-wave splitting (SWS) techniques applied to a microseismic data set from a gas field. These include SWS inversion using rock physics modelling, SWS tomography and frequency-dependent anisotropy modelling. The aim is to characterize the field fracture network. Overall, our results agree with the knowledge about the field geology and those obtained from other geophysical techniques. The magnitude of anisotropy is controlled by lithology and proximity to the NE-SW graben faults that cut the field formations. The predominant fracture strikes are consistent with the trends of the main faults (NE-SW and NW-SE) and the majority of the observations indicate subvertical fracture dip (>70o). The study highlights the potential of shear-wave splitting in microseismic data as a tool to characterise hydrocarbon reservoirs.

UR - http://www.scopus.com/inward/record.url?scp=84896663476&partnerID=8YFLogxK

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:84896663476

BT - 3rd Passive Seismic Workshop: Actively Passive!

PB - European Association of Geoscientists and Engineers, EAGE

T2 - 3rd Passive Seismic Workshop: Actively Passive!

Y2 - 27 March 2011 through 30 March 2011

ER -

A multi faceted study of reservoir anisotropy using microseismic data

Abstract

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