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Clastic rock reservoir modeling method and device based on a digital geological outcrop

A kind of clastic rock and geology technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of photo visual error, low efficiency, large workload, etc., achieve fast and accurate extraction, save human resources, The real effect of the parameters

Inactive Publication Date: 2014-11-05
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. There are visual errors in the photos, and it is impossible to accurately restore the spatial distribution of sand bodies;
[0006] 2. There are bound to be errors in the matching between the vertical histogram and the photo. Manual restoration and correction are difficult, heavy workload, and low efficiency;
[0007] 3. Parameters such as fracture occurrence and fracture density cannot be accurately described, and photographs cannot describe these geological features with space vector information

Method used

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  • Clastic rock reservoir modeling method and device based on a digital geological outcrop
  • Clastic rock reservoir modeling method and device based on a digital geological outcrop
  • Clastic rock reservoir modeling method and device based on a digital geological outcrop

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Embodiment

[0090] The modeled sand bodies are located in the third member of the Bashijiqike Formation in the Suohan Village section of Baicheng County, Xinjiang. This member is the gas-exhausting member of the Dabei Gas Field in the Tarim Basin. The sedimentary microfacies between the underwater distributary channels, the channel sand bodies are developed, the fractures are also very large, and the reservoir is good.

[0091] The specific implementation process is as follows:

[0092] Step 1): According to the known data in the exploration area, select geological outcrops similar to the reservoir characteristics of the exploration target layer in the exploration area;

[0093] The known data of the exploration area include: geological maps, satellite photos, surface elevation maps, and geological data. The clastic outcrops of the Bashijiqike Formation in the Baicheng area with relatively developed sand bodies are selected as the research object.

[0094] Step 2): Use a three-dimensiona...

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Abstract

The invention relates to a clastic rock reservoir modeling method and device based on a digital geological outcrop. The clastic rock reservoir modeling method comprises the steps that the geological outcrop is selected according to known data of a target exploratory area; geological information of the geological outcrop is collected, and geological outcrop data bodies are obtained; the pictures of the outcrop in all the directions and at all the positions are obtained; actual measurement is conducted on the geological section of the geological outcrop, and a rock sample of the geological outcrop is obtained; analysis, assaying and measurement are conducted on the rock sample, and a rock physical property analysis graph is obtained; the geological outcrop data bodies are spliced, and the three-dimension data body, with uniform coordinates, of the geological outcrop is obtained; through the pictures of the geological outcrop in all the directions and at all the positions, the geological phenomena of the three-dimension data body of the geological outcrop are described; a three-dimension geological model of the geological outcrop is established according to the described geological phenomena of the geological outcrop and the actual measurement information of the geological section; according to the rock physical property analysis graph, a clastic rock reservoir physical property model is established through the three-dimensional geological model of the geological outcrop.

Description

technical field [0001] The invention relates to the technical fields of geological exploration and oil and gas exploration, in particular to a method and device for modeling clastic rock reservoirs based on digital geological outcrops. Background technique [0002] The establishment of reservoir geological model is the focus and difficulty of modern reservoir description. In areas where downhole data are scarce, it is generally difficult to grasp the geostatistical characteristics of reservoir properties and parameters. [0003] In the past, the geological model of outcrop reservoirs was established mainly through manual measurement of multiple parallel columnar sections, through sandbody measurement and mosaic photos inserted between the columnar sections according to the actual position and size of the sandbody, and through correction and restoration, the sandbody skeleton was obtained Prototype cutaway model. [0004] There are three major flaws in traditional technology...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 王春阳王贵重刘永雷马培领杨德兴李松元
Owner BC P INC CHINA NAT PETROLEUM CORP
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