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Quantitative evaluation method for inter-well plane connectivity of fluvial facies sand body

A quantitative evaluation and connectivity technology, applied in geophysical measurement, complex mathematical operations, instruments, etc., can solve problems such as lack of

Active Publication Date: 2022-06-07
CHINA PETROLEUM & CHEM CORP +1
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  • Description
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Problems solved by technology

For fluvial facies sand bodies with a large area of ​​work area and many wells completed, there is still a lack of fast, efficient and simple methods.

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  • Quantitative evaluation method for inter-well plane connectivity of fluvial facies sand body
  • Quantitative evaluation method for inter-well plane connectivity of fluvial facies sand body
  • Quantitative evaluation method for inter-well plane connectivity of fluvial facies sand body

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[0082] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0083] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, and / or combinations thereof.

[0084] The method for quantitative evaluation of inter-well plane connectivity of fluvial facies sand bodies in the present...

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Abstract

The invention provides a fluvial facies sand body inter-well plane connectivity quantitative evaluation method, which comprises the following steps of: 1, identifying and dividing a single river channel sand body, and establishing a well pair sample detailed data table; 2, five key parameters closely related to the connectivity are set, and five key parameters of the well pair are calculated; 3, carrying out data processing and weight calculation on the five key parameters of the well pair; and 4, calculating an inter-well connectivity quantitative evaluation parameter M, and carrying out fluvial facies sand body inter-well plane connectivity quantitative evaluation. Compared with the prior art, the fluvial facies sand body inter-well plane connectivity quantitative evaluation method has better operability, has innovativeness and practicability, is beneficial to popularization, and provides a simple, rapid and feasible method for inter-well plane connectivity quantitative evaluation.

Description

technical field [0001] The invention relates to the technical field of oil and gas field development, in particular to a quantitative evaluation method for inter-well plane connectivity of fluvial sand bodies. Background technique [0002] In the middle and late stages of oilfield development, study the connectivity of reservoirs between wells to predict remaining oil between wells, adjust well pattern and strata, deploy new drilling and adjustment wells, prepare perforation plans for production, and allocate injection-production wells It plays an important role in decision-making and guidance. At present, there are many qualitative evaluation methods for plane connectivity evaluation of interwell reservoirs. There are geological methods that divide connectivity grades based on a certain parameter or multiple parameters, and methods that analyze sedimentary types and sand body superimposition patterns. , There are also pressure drop analysis method in reservoir engineering,...

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Application Information

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IPC IPC(8): G01V9/00G06F17/10
CPCG01V9/00G06F17/10Y02A20/402
Inventor 张海娜杜玉山李健翟亮徐鹏晔刘丽姜书荣王志伟胡晨彬崔晴晴
Owner CHINA PETROLEUM & CHEM CORP
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