Method and device for determining favorable oil and gas dredging part

The invention provides a method and a device for determining a favorable oil and gas dredging part. The method comprises the following steps: acquiring seismic data obtained by petroleum seismic exploration; calculating a third-generation coherence attribute EIG of a seismic data volume below a targ...

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Bibliographic Details
Main Authors XIAO GAOJIE, HONG LIANG, SU YUPING, LI ZHI, MA FENG, YANG WEI, LEI MING, ZHENG QIAN, XIAO KUNYE, CHEN BINTAO, DENG SONGTAO
Format Patent
LanguageChinese
English
Published 12.04.2024
Subjects
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention provides a method and a device for determining a favorable oil and gas dredging part. The method comprises the following steps: acquiring seismic data obtained by petroleum seismic exploration; calculating a third-generation coherence attribute EIG of a seismic data volume below a target interval according to the seismic data; calculating an information dimension DIM on the coherent data slices; calculating a chaos function CHOI on the seismic data by adopting a Lyapunov index; according to the third generation coherence attribute EIG, the information dimension DIM and the chaos function CHOI, obtaining a fault zone internal structure index FIS; and based on the internal structure index FIS, quantitatively evaluating the oil-gas migration dredging capability of the fault and determining a favorable dredging part. Compared with a traditional SGR method and the like, the method does not need to count a large number of geological parameters, the dredging part is determined directly through seismic
Bibliography:Application Number: CN202211240537