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Collaborating Authors
Results
A method is presented for reducing traveltime data from borehole seismic experiments to velocity-depth structure, The data addressed are not in the conventional vertical seismic profiling format but rather consist of multiple 08sctc for a fixed receiver depth. The technique, which treats simultaneously data from any number of depths in the borehole, in addition to surface data. is based on the lineal inversion scheme of Dorman and Jacobson (1981). Given parameters 7(p) T(p) pX(p) and j(p) T(p) pX(p). The maximum slope of the traveltime curve gives the slowness at the receiver. For a borehole receiver, velocity at the depth of the receiver can be obtained from the slope of the inflection point of the traveltime curve.
borehole imaging, borehole receiver, borehole seismic data, costa rica rift area, direct ray, experiment, geophone, maximum gradient, production control, production monitoring, ray, receiver, receiver depth, Reservoir Characterization, Reservoir Surveillance, resolution, rica rift area, slowness, surface data alone, Traveltime analysis, traveltime curve, traveltime data, Upstream Oil & Gas, velocity-depth function, vertical seismic profile, wellbore seismic
Geophysics:
SPE Disciplines:
- Reservoir Description and Dynamics > Reservoir Characterization > Seismic processing and interpretation (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Near-well and vertical seismic profiles (1.00)
- Production and Well Operations > Well & Reservoir Surveillance and Monitoring > Borehole imaging and wellbore seismic (1.00)