CO2 Injection in Vacuum Field—Colorado School of Mines
The Reservoir Characterization Project (RCP) is an industry sponsored consortium whose mission Is to develop and apply 3-D and 4-D ("time-lapse"), 3-C seismology and associated technologies to improve reservoir performance and hydrocarbon recovery while reducing environmental impact. RCP-Phase VI is the multidisciplinary, 4-D, 3-C study of a pilot C02 "huff-n-puff" injection project in Vacuum field, a shallow shelf carbonate reservoir located on the Northwestern Shelf of the Permian Basin, Southeastern New Mexico.
The C02 "huff-n-puff" occurred in well CVU-97 at Vacuum Field. The initial 3-D, 3-C survey was acquired from October 28 through November 13, 1995, prior to the C02 injection which occurred from November 13-December 8. The "soak" period extended from December 8 through December 28, after which CVU-97 was returned to production. The second 3-D, 3-C survey was acquired from December 21 to December 26 during the "soak" period.
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“This book, prepared for use with the first SEG / EAGE Distinguished Instructor Short Course, discusses Â"time-lapse seismicÂ" and enables geoscientists to assess the value and risk of this new technology. It covers the rationale and driving forces behind time-lapse seismic by examining the limitations of existing methods of tracking fluid flow between wells. It examines those reservoir properties that change with time and what can be observed on seismic data over elapsed time. The repeatability of seismic data and the use of Â"legacyÂ" data sets are discussed, along with a review of the seismic data acquisition schemes and data processing requirements for time-lapse analysis. The rock-physics foundation for data analysis and interpretation options also are described. A selection of industry case histories illustrates many of these points. The reader will gain an understanding of key success factors, key calibration requirements, and key uncertainties of time-lapse seismic in reservoir management.”