Petroleum reservoir characterization using downhole microseismic monitoring

一城风絮

【题名】井下微地震在储层表征中的应用
【格式】PDF
【页数】9页
【摘要】

Imaging of microseismic data is the process by which we use
information about the source locations, timing, and mechanisms
of the induced seismic events to make inferences about the structure
of a petroleum reservoir or the changes that accompany injections
into or production from the reservoir.Afew key projects
were instrumental in the development of downhole microseismic
imaging. Most recent microseismic projects involve imaging hydraulic-
fracture stimulations, which has grown into a widespread
fracture diagnostic technology. This growth in the application of
the technology is attributed to the success of imaging the fracture
complexity of the Barnett Shale in the Fort Worth basin, Texas,
and the commercial value of the information obtained to improve
completions and ultimately production in the field. The use of
commercial imaging in the Barnett is traced back to earlier investigations
to prove the technology with the CottonValley imaging
project and earlier experiments at the M-Site in the Piceance basin,
Colorado. Perhaps the earliest example of microseismic imaging
using data from downhole recording was a hydraulic fracture
monitored in 1974, also in the Piceance basin. However, early
work is also documented where investigators focused on identifying
microseismic trace characteristics without attempting to
locate the microseismic sources. Applications of microseismic
reservoir monitoring can be tracked from current steam-injection
imaging, deformation associated with reservoir compaction in
the Yibal field in Oman and the Ekofisk and Valhall fields in the
North Sea, and production-induced activity in Kentucky, U.S.A.
【全文】

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