Judgment and recognition method for later oil-gas reservoir formed by construction damage

• Main Authors: LIN HUIXI, ZENG ZHIPING, GONG YAJUN, QIN FENG, CHEN XUE, FAN JIE, ZHANG KUIHUA, LIU HUAXIA, LIU HUI, ZHOU TAO
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; DETECTING MASSES OR OBJECTS; ELECTRIC DIGITAL DATA PROCESSING; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention provides a judgment and recognition method for a later oil-gas reservoir formed by construction damage, and belongs to the technical field of oil-gas exploration. Vertical preservation conditions of oil and gas are determined by evaluating a break-cover configuration relationship in different reservoir-forming stages, and then the position of the later oil-gas reservoir is clear. The judgment and recognition method for the later oil-gas reservoir formed by construction damage comprises the following steps: selecting a plurality of measuring points in a target layer of a research area, wherein a fault in the range of the research area is covered with the measuring points uniformly; according to logging, well drilling and seismic data in the research area, calculating a lower limiting value SGRlim of fault mud rock rates corresponding to each measuring point; according to logging, well drilling and seismic data in the research area, calculating a fault mud rock rate SGR old in a reservoir-forming