TIME-LAPSE SEISMIC MONITORING: REPEATABILITY PROCESSING TESTS

摘要

The impetus of seismic reservoir monitoring has begun to reach all facets of hydrocarbon production, and much is expected from this nascent technology. The concept of being able to monitor hydrocarbons, hydrocarbon movement (or lack thereof), and fluid-state change is very alluring to the reservoir engineer, geologist, and geophysi-cist. Conceptually, repeat or time-lapse seismic monitoring is straightforward. Seismic-data sets acquired at different calendar dates are calibrated, compared, and the intersurvey differences analyzed and interpreted as fluid-state effects. In ideal petro-physical and pore-fluid situations, physical changes in the fluid state (or lack thereof) can be interpreted or inferred from repeated data sets. The results published to date are very encouraging. However, many of these results are the products of well-planned and -executed research projects, and time-lapse technology has had limited commercial exposure.