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Non-seismic data volume processing method and device

A processing method and non-seismic technology, applied in the field of oil and gas exploration geophysical prospecting, can solve the problem of low characterization accuracy of conglomerate, and achieve the effect of improving characterization accuracy

Active Publication Date: 2018-03-13
PETROCHINA CO LTD
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Problems solved by technology

[0004] The combined inversion of 3D seismic and 3D electrical methods using 3D electrical data in the depth domain and seismic data in the time domain can only describe conglomerate qualitatively, resulting in low accuracy in describing conglomerate

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  • Non-seismic data volume processing method and device
  • Non-seismic data volume processing method and device

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Embodiment Construction

[0023] figure 1 It is a flow chart of the non-seismic data volume processing method provided by the embodiment of the present invention. The embodiment of the present invention aims at the problem of low precision of conglomerate description, and provides a non-seismic data volume processing method, and the specific steps are as follows:

[0024] Step S101, obtaining the stratum velocity corresponding to each non-seismic data point in the non-seismic data volume, the non-seismic data volume includes the stratum depth of each non-seismic data point, and the non-seismic data volume is a data volume in the depth domain;

[0025] In the embodiment of the present invention, the non-seismic data volume is specifically a three-dimensional electrical data volume, and the three-dimensional electrical data volume includes a plurality of non-seismic data points, and each non-seismic data point corresponds to a resistivity value corresponding to the non-seismic data point. The depth of t...

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Abstract

The embodiment of the invention provides a non-seismic data volume processing method and an apparatus. The method includes: obtaining the layer speed of a stratum corresponding to each non-seismic data point in a non-seismic data volume; and regarding each non-seismic data point in the non-seismic data points as a to-be-processed data point, dividing the stratum depth of the to-be-processed data point by the layer speed of the stratum of the to-be-processed data point and obtaining a time value corresponding to the to-be-processed data point in order to convert the non-seismic data volume in a depth domain to a data volume in a time domain. According to the method and the apparatus, the three-dimensional electrical data volume in the depth domain is converted to the data volume in the time domain, three-dimensional seismic and three-dimensional electrical combined inversion can be realized by employing the three-dimensional electrical data volume in the time domain and the three-dimensional seismic data volume in the time domain, compared with the realization of the three-dimensional seismic and three-dimensional electrical combined inversion by employing the three-dimensional electrical data volume in the depth domain and the three-dimensional seismic data volume in the time domain, seamless connection of the three-dimensional electrical data volume and the three-dimensional seismic data volume is realized, and the conglomerate carving precision is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of oil and gas exploration and geophysical prospecting, in particular to a method and device for processing non-seismic data volumes. Background technique [0002] In the process of oil and gas exploration, it is necessary to carry out lithology identification and characterization of lithology and lithofacies. [0003] In the existing technology, the conglomerate is characterized by the joint inversion technology of 3D seismic and 3D electrical method, specifically, the conglomerate is characterized by the wave impedance inversion of the seismic data constrained by the conglomerate frame identified by the 3D electrical method data. Among them, the 3D Electrical data is a data body in the depth domain, and seismic data is a data body in the time domain. [0004] The combined inversion of 3D seismic and 3D electrical methods using 3D electrical data in the depth domain and seismic data i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V11/00
CPCY02A90/30
Inventor 谢会文李勇雷刚林吴超杨书江许安明李青许士朝唐雁刚董长华玛丽克吴庆宽伍校军曹立刚周露
Owner PETROCHINA CO LTD
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