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4D seismic monitoring of the miscible CO2 flood of Hall-Gurney Field, Kansas, U.S

Leading Edge (Tulsa, OK)

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Abstract

A cost-effective, highly repeatable, 4D-optimized, single-pattern/patch seismic data-acquisition approach with several 3D data sets was used to evaluate the feasibility of imaging changes associated with the " water alternated with gas" (WAG) stage. By incorporating noninversion-based seismic-attribute analysis, the time and cost of processing and interpreting the data were reduced. A 24-ms-thick EOR-CO 2 injection interval-using an average instantaneous frequency attribute (AIF) was targeted. Changes in amplitude response related to decrease in velocity from pore-fluid replacement within this time interval were found to be lower relative to background values than in AIF analysis. Carefully color-balanced AIF-attribute maps established the overall area affected by the injected EOR-CO2.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
4D seismic monitoring of the miscible CO2 flood of Hall-Gurney Field, Kansas, U.S
Series title:
Leading Edge (Tulsa, OK)
Volume
23
Issue:
11
Year Published:
2004
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Leading Edge (Tulsa, OK)
First page:
1171
Last page:
1176
Number of Pages:
6