Earthquake identification method for low-sequence fault under high stratigraphic dip angle condition

The invention relates to the technical field of oilfield development, in particular to an earthquake identification method for a low-sequence fault under the condition of a high stratigraphic dip angle. The method comprises the following steps: performing frequency division diffusion filtering proce...

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Hauptverfasser:	WANG JIAN, ZHAO KAILIAN, FANG HUANHUAN, DU YUSHAN, ZHOU HAITING, TAN QINHUI, LIU XIANTAI, WU GANG, HUANG CHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING
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creator	WANG JIAN ZHAO KAILIAN FANG HUANHUAN DU YUSHAN ZHOU HAITING TAN QINHUI LIU XIANTAI WU GANG HUANG CHAO
description	The invention relates to the technical field of oilfield development, in particular to an earthquake identification method for a low-sequence fault under the condition of a high stratigraphic dip angle. The method comprises the following steps: performing frequency division diffusion filtering processing on post-stack seismic data; carrying out gradient characteristic attribute calculation on the processed seismic data to obtain horizontal, vertical and diagonal gradient data of the seismic data; performing dip angle attribute calculation on the seismic data to obtain dip angle data of the seismic data; judging whether the stratum is inclined or not and the inclination direction of the stratum according to the inclination angle data, and performing gradient replacement according to different conditions; dividing the seismic image into a stable event and a non-stable event, performing gradient correction on the gradient data after gradient replacement according to different conditions, and constructing a struc
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subjects	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING
title	Earthquake identification method for low-sequence fault under high stratigraphic dip angle condition
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