Crosswell seismic radial survey tomograms and the 3-D interpretation of a heavy oil steamflood
- Mobil Research and Development Corp., Dallas, TX (United States)
- Amoco Production Research, Tulsa, OK (United States)
- Advanced Reservoir Technologies, Dallas, TX (United States)
S-wave, P-wave, and Poisson`s ratio tomograms have been used to interpret the 3-D distribution of rock and fluid properties during an early phase of a California heavy oil sand steamflood. Four lines of good quality crosswell seismic data, with source to receiver offsets ranging from 287 to 551 ft (87 to 168 m), were acquired in a radial pattern around a high temperature cemented receiver cable in four days. Processing, first-arrival picking, and good quality tomographic reconstructions were completed despite offset-related variations in data quality between the long and short lines. Interpretation was based on correlations with reservoir models, log, core, temperature, and steam injection data. The interpretation results indicate that radial survey tomograms can be tied at a central well and used to develop an integrated 3-D geoscience-engineering reservoir model despite offset-related variations in data quality. The laterally continuous, stratification-controlled, low P-wave velocity zones, which extend up-dip, suggest that significant amounts of steam-heat are not heating the surrounding reservoir volume but are flowing updip along high flow channels.
- OSTI ID:
- 87535
- Journal Information:
- Geophysics, Journal Name: Geophysics Journal Issue: 3 Vol. 60; ISSN GPYSA7; ISSN 0016-8033
- Country of Publication:
- United States
- Language:
- English
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