Method and device for determining oil and gas reservoir

A technology for oil and gas reservoirs and determination methods, which is applied in the field of oil and gas exploration, can solve the problems of large errors in oil and gas reservoirs, and achieve the effect of efficient identification

Active Publication Date: 2019-10-11
PETROCHINA CO LTD
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Problems solved by technology

[0005] The embodiments of the present application provide a method and device for determining oil and gas reservoirs, so as to solve the technical problem of large errors in determining oil and gas reservoirs existing in existing converted shear wave exploration methods, so as to accurately and efficiently identify the oil and gas reservoirs in the target area. Technical Effects of Oil and Gas Reservoirs

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  • Method and device for determining oil and gas reservoir
  • Method and device for determining oil and gas reservoir
  • Method and device for determining oil and gas reservoir

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Embodiment Construction

[0065] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0066] Considering that most of the existing converted wave seismic exploration methods need to combine the converted shear wave seismic data with the longitudinal wave seismic data to determine the reservoir sensitivity elastic parameters, and then carry out joint inversion to determine the oil and gas reservoirs. However, in actual impl...

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Abstract

The embodiment of the invention provides a method and device for determining an oil and gas reservoir, and the method comprises the steps: obtaining the converted shear wave seismic data of a target region; determining a shear wave speed frequency dispersion attribute parameter according to the converted shear wave seismic data; and determining the oil and gas reservoir in the target region according to the shear wave speed frequency dispersion attribute parameter. Because the scheme gives consideration to the specific characteristics of the shear wave speed frequency dispersion attribute parameter, the shear wave speed frequency dispersion attribute parameter is determined according to the converted shear wave seismic data, and the oil and gas reservoir in the target region is recognizedthrough the shear wave speed frequency dispersion attribute parameter, thereby preventing a conventional converted shear wave seismic exploration method from damaging converted shear wave seismic amplitude, solving a technical problem that the determining of the oil and gas reservoir through the conventional method is bigger in error, and achieving a technical effect of accurately and efficientlyrecognizing the oil and gas reservoir in the target region.

Description

technical field [0001] The present application relates to the technical field of oil and gas exploration, in particular to a method and device for determining oil and gas reservoirs. Background technique [0002] In the specific process of oil and gas exploration, it is often necessary to first identify and determine the oil and gas reservoirs in the target area. For example, in the process of natural gas exploration, it is necessary to identify the natural gas reservoirs in the region to determine the specific location of the natural gas enrichment area in the region. [0003] At present, in order to accurately identify the oil and gas reservoirs in the region, especially the oil and gas reservoirs corresponding to lithologic reservoirs or gas reservoirs, it is usually necessary to combine the converted shear wave seismic data and the compressional wave seismic data in the region, through multi-wave A variety of reservoir sensitivity elastic parameters are determined by se...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28G01V1/30
Inventor 桂金咏高建虎李胜军王洪求刘炳杨
Owner PETROCHINA CO LTD
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