Downhole synthetic seismic profiles in elastic media

Journal Article · Thu Feb 01 00:00:00 EST 1990 · Geophysical Prospecting; (USA)

DOI:https://doi.org/10.1111/j.1365-2478.1990.tb01840.x· OSTI ID:7091157

Xu, X

A multichannel lattice filter structure is utilized to represent seismic waves propagating in adjacent layers in an elastic medium. Using this model, an explicit time-domain solution for arbitrary source and receiver locations is obtained as an arma (autoregressive and moving-average) process. The lattice and arma structures have given rise to an effective algorithm for the calculation of offset/downhole synthetic seismograms. A large range of recently developed offset/downhole seismic survey geometries, such as the Yo-Yo arrangement, can thus be simulated. In addition, the explicit solutions for upgoing and downgoing waves provide new insight into the properties of general downhole seismic signals, including wave-mode conversion effects and multiple reflections. Furthermore, offset/downhole seismograms generated by a line source (i.e., 2D point source) can also be constructed by superposition of plane waves with different incidence angles.

• OSTI ID: 7091157
• Journal Information: Geophysical Prospecting; (USA), Vol. 38:2; ISSN 0016-8025
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
58 GEOSCIENCES
BOREHOLES
SEISMIC SURVEYS
DATA PROCESSING
ALGORITHMS
MATHEMATICAL MODELS
SEISMIC S WAVES
SEISMOGRAPHS
SYNTHETIC ROCKS
WAVE PROPAGATION
CAVITIES
GEOPHYSICAL SURVEYS
MATERIALS
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
PROCESSING
ROCKS
SEISMIC ARRAYS
SEISMIC DETECTORS
SEISMIC WAVES
SURVEYS
SYNTHETIC MATERIALS
020200* - Petroleum- Reserves
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990200 - Mathematics & Computers
580000 - Geosciences