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Method for automatically modeling point dam reservoir based on meandering ring shape database

An automatic modeling and database technology, applied in 3D modeling, image data processing, instruments, etc., can solve problems such as three-dimensional quantitative representation of difficult dam-type reservoir space, and description of the plane distribution characteristics of difficult dams, so as to improve research accuracy and Efficiency, assessing the effect of uncertainty

Inactive Publication Date: 2017-10-03
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology

Existing mathematical functions and reservoir modeling algorithms are difficult to describe the planar distribution characteristics of point bars, and it is even more difficult to perform three-dimensional quantitative characterization of point bar reservoir space

Method used

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  • Method for automatically modeling point dam reservoir based on meandering ring shape database
  • Method for automatically modeling point dam reservoir based on meandering ring shape database
  • Method for automatically modeling point dam reservoir based on meandering ring shape database

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Embodiment Construction

[0036] The present invention will be further described below through specific embodiments and accompanying drawings. The embodiments of the present invention are for better understanding of the present invention by those skilled in the art, and do not limit the present invention in any way.

[0037] The core of the point bar reservoir automatic simulation method based on the meandering ring shape database of the present invention is the establishment of the meandering ring shape database and the automatic simulation of the point bar in the meandering zone, which reproduces the "point bar" in the meandering zone in the real geographical environment. "fish scale" distribution feature, including the following steps:

[0038] Step 1: Construct the meandering loop shape database:

[0039] 1) Based on the hydrodynamic channel migration formula, the river channel shape evolution simulation is carried out, and the high tortuosity channel curve at the end of the evolution is obtained....

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Abstract

The invention belongs to the technical field of reservoir modeling for oil field development, and specifically relates to an automatic modeling method for point bar reservoirs based on a meandering ring shape database, which mainly includes: first constructing a meandering ring shape database; Simulate the plane distribution range of the channel belt, and simulate the plane distribution of the meandering ring under the constraints of grid attributes and specified rules; finally, establish a 3D point bar model. The method of the invention realizes the automatic simulation of the point bar in the channel belt, improves the accuracy and efficiency of reservoir characterization, and serves oil field development and production.

Description

technical field [0001] The invention belongs to the technical field of reservoir modeling for oil field development, in particular to an automatic modeling method for point bar reservoirs based on a meandering ring shape database. Background technique [0002] The uncertainty of subsurface reservoirs often leads to high uncertainty in the established geological models. But the petroleum industry and the mining industry still need reliable geological models to estimate reserves and production potential. These models evaluate the response of the system to the transfer function. The present invention relates to petroleum reservoir simulations where the transfer function is the flow simulation and the response variables are flow rate and recovery factor. In terms of reservoir modeling, there is a lot of information available. Seismic data can provide volume information, but the vertical resolution is obviously insufficient. Well logs and cores can provide accurate informatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05G06T17/20
CPCG06T17/05G06T17/20G06T2210/44G06T2210/61
Inventor 舒晓黄凯苏彦春胡勇金宝强霍春亮周军良陈华靖赵军寿邓猛甘立琴来又春苏进昌谢京
Owner CHINA NAT OFFSHORE OIL CORP
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