Title:
INVERSION METHOD FOR RAY ELASTIC PARAMETER
Document Type and Number:
WIPO Patent Application WO/2017/024523
Kind Code:
A1
Abstract:
An inversion method for a ray elastic parameter. The method comprises: collecting seismic data and logging data of an exploration area (S101), wherein the logging data comprises depth data, density data, longitudinal wave speed data and transverse wave speed data; according to the seismic data, converting the logging data from a depth domain to a time domain (S102); according to the logging data, obtained through conversion, of the time domain, determining a ray elastic impedance corresponding to a plurality of incident angles of a well point position (S103); according to the ray elastic impedance and the seismic data, determining a cross section of the ray elastic impedance corresponding to the plurality of incident angles (S104); and according to the cross section of the ray elastic impedance corresponding to the plurality of incident angles, determining a reservoir elastic parameter (S105). The inversion method can accurately and rapidly solve an elastic parameter without a multiplicity of solutions, and can be suitable for gathered seismic data with a large incident angle and satisfy the requirements for oil-gas seismic exploration.
Inventors:
ZHAO LONG (CN)
Application Number:
PCT/CN2015/086647
Publication Date:
February 16, 2017
Filing Date:
August 11, 2015
Export Citation:
Assignee:
SHENZHEN CHAO WEIDA TECH CO LTD (CN)
International Classes:
G01V11/00
Foreign References:
| CN104184610A | 2014-12-03 | |||
| CN104516021A | 2015-04-15 | |||
| CN104614763A | 2015-05-13 | |||
| CN104597490A | 2015-05-06 | |||
| CN102466816A | 2012-05-23 | |||
| US6058073A | 2000-05-02 |
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