Method for interpreting seismic horizon to sedimentary unit in dense well network area
A technique for sedimentary units and seismic layers, which is applied in seismology, seismology, seismic signal processing, etc. for well logging records. It can solve the problems of sedimentary unit reservoir prediction, low efficiency, inability to obtain seismic data, and heavy horizon calibration workload. and other issues to achieve the effect of improving work efficiency and reducing labor intensity
Pending Publication Date: 2020-07-14
DAQING OILFIELD CO LTD +1
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Abstract
The invention relates to a method for interpreting a seismic horizon to a sedimentary unit in a dense well network area. The problems that an existing seismic geological horizon calibration method islarge in horizon calibration workload and low in efficiency, and seismic data cannot conduct reservoir prediction on a sedimentary unit are solved. The method comprises the following steps of 1) acquiring data: acquiring a three-dimensional seismic data volume acquired outdoors and well point depth domain hierarchical data measured by using a logging instrument, 2) performing three-dimensional seismic data volume oil layer group level isochronous stratigraphic framework interpretation by applying an artificial interpretation method, 3) secondly, interpreting a sedimentary unit-level isochronous stratigraphic framework of the seismic data volume, and 4) finally, under the control of the seismic data volume sedimentary unit-level isochronous stratigraphic framework, effectively extracting the seismic attribute reservoir prediction result of each sedimentary unit. According to the method, the time domain isochronous stratigraphic framework is established by tracking the seismic horizon ofthe top and the bottom of the oil layer group, so that the reservoir prediction work of seismic data on each sedimentary unit is realized.
Application Domain
Seismic signal processingSeismology for water-logging
Technology Topic
Earth quakeAssise +4
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