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A detection method and detection device for a fracture-cavity storage body

A detection method and detection device technology, which is applied in the field of detection methods and detection devices for fractured-vuggy reservoirs, can solve the problems of inaccurate detection of complex fractured-vuggy reservoirs, and achieve accurate prediction results

Active Publication Date: 2017-04-12
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology

[0004] The present invention provides a method and device for detecting fractured-cavity reservoirs to overcome the technical problem of inaccurate detection of complex fractured-cavity reservoirs using information parameters of a single seismic attribute

Method used

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  • A detection method and detection device for a fracture-cavity storage body
  • A detection method and detection device for a fracture-cavity storage body
  • A detection method and detection device for a fracture-cavity storage body

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Embodiment Construction

[0058] In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific embodiments, but the present invention is not limited thereto.

[0059] figure 1 It is a flow chart of the detection method of Embodiment 1 of the present invention, such as figure 1 As shown, the first embodiment of the present invention provides a method for detecting fractured-vuggy reservoirs, including:

[0060] Step S101, selecting multiple effective attributes of the target to be detected.

[0061] Specifically, the effective attributes refer to the attributes that are sensitive to the target to be detected and effective for detection, including at least one of the following: curvature, inclination, azimuth, strong amplitude clustering, amplitude change rate, discontinuity, attenuation gradient, curvelet transform Ant tracking algorithm calculation results of multi-scale detection and coherent ...

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Abstract

The invention discloses a seam hole reservoir body detection method and detection device. The detection method includes the steps that multiple effective attributes of a target to be detected are selected; a mathematical expectation value of a known reservoir body is output, an overdetermined equation is established for all the effective attributes in combination with linear combination of attribute values of the effective attributes, and the least square solutions of the overdetermined equation are solved to serve as attribute weighing coefficients of the effective attributes; according to the attribute weighing coefficients, multiple preferred attributes are selected from the multiple effective attributes; according to the attribute weighing coefficients and the preferred attributes, fusion of the preferred attributes is achieved with a linear weighing method. The detection method and detection device solve the technical problem that when information parameters in a single seismic attribute are used for detecting complicated seam hole type reservoir stratums, the detection is not accurate, and the detection method and detection device have the advantage that when a complex reservoir body is detected through multi-attribute information, the reservoir body can be predicted more accurately.

Description

technical field [0001] The invention relates to the technical field of geophysics, in particular to a detection method and a detection device for fracture-vug reservoirs. Background technique [0002] The Ordovician fractured-vuggy carbonate reservoirs in Tahe Oilfield have strong vertical and horizontal heterogeneity, and the types, scales, combinations and spatial distribution of storage spaces are quite different. The deep burial and superimposed reformation have formed different degrees and scales of collapse and filling, resulting in a wide variety of spatial geometric shapes of fractured-vuggy bodies, which are difficult to accurately characterize. [0003] In recent years, with the improvement of seismic exploration data acquisition methods and equipment in Tahe Oilfield, the improvement of data processing technology and the development of interpretation methods, more and more new seismic attribute technologies, such as amplitude attribute extraction and optimization ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
Inventor 窦之林王世星韩革华唐金良
Owner CHINA PETROLEUM & CHEM CORP
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