Calibration system for use in time lapse tomography

Details Calibration system for use in time lapse tomography Calibration system for use in time lapse tomography

1997-03-21

1999-08-31

Barlow, John

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 48, 367367, 367 47, 367 73, 367 38, 367 13, 367 25, 367 26, 367 37, 367 71, G01V 128

Patent

active

059462710

ABSTRACT:
A discrete, minimally-equipped standard seismic calibration system is permanently installed over a subsurface reservoir structure that contains fluids of economic interest. Changes in the fluid content as a function of long-term time lapse may introduce changes in the acoustical characteristics of the reservoir rock layers, producing a corresponding change in the seismic signature recorded by the calibration system. The difference between two signatures over a selected time epoch defines a time-lapse calibration signature. The time lapse calibration signature can be applied to reduce the results of different conventional seismic data-acquisition systems of different vintages and technologies to a common standard.

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Ekofisk Field-Reservoir Characterization to Reservoir Monitoring on a Giant Chalk Reservoir (L040); S.C. Key, et al; Phillips Petroleum Co., Norway, Eage 58th Conference and Technical Exhibition, Amsterdam, Jun. 3-7, 1996; s. 2 pages.

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