Sand-mud stone thin interbed reservoir thickness prediction method

A prediction method and technology of sand and mudstone, applied in seismic signal processing and other directions, can solve the problems of difficult structural interpretation, poor structural trap conditions, and difficult to determine the corresponding relationship.
CN103777243AInactive Publication Date: 2014-05-07CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2014-05-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a sand-mud stone thin interbed reservoir thickness prediction method. The sand-mud stone thin interbed reservoir thickness prediction method includes the following steps that: performing fine horizon interpretation; extracting a plurality of kinds of seismic attributes of a thin interbed; optimizing the plurality of kinds of seismic attributes to obtain optimized seismic attributes; performing multiple-attribute fitting; and calculating sand body thickness distribution and outputting results. With the sand-mud stone thin interbed reservoir thickness prediction method adopted, problems such as difficult thin interbed oil reservoir structure interpretation, instable sand body transverse distribution and difficult transverse prediction, can be solved, and distribution trends of thin layers (sand layer groups) on a plane can be precisely described, and relative relationships between thinness and thickness can be indicated.
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Description

technical field

[0001] The invention relates to the technical field of seismic multi-attribute prediction, in particular to a method for predicting the thickness of thin sand-shale interbedded reservoirs. Background technique

[0002] Thin interbedded oil reservoirs are an important exploration type in continental faulted basins. Due to their complex formation mechanism and distribution rules, difficult exploration, and high technical requirements, the research on new technologies and methods for description and evaluation is the key to solving the exploration difficulties of this type of oil and gas reservoirs. inevitable way. However, the technical methods used in the current imported software are still difficult to meet the needs of thin interbedded reservoir exploration. The main problems are as follows: First, thin interbedded reservoirs often have poor structural trap conditions, small faults and micro-amplitude structures are developed, and structural interpretation ...

Claims

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