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A well test interpretation method and apparatus for an abnormally high pressure carbonate volatile reservoir

A well test interpretation, carbonate rock technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve problems such as inconsistent reservoir characteristics, and achieve the effect of reliable interpretation

Inactive Publication Date: 2018-12-18
PETROCHINA CO LTD
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Problems solved by technology

[0003] Due to the special properties of abnormally high-pressure carbonate reservoirs, the interpretation results obtained by conventional well test interpretation methods are often inconsistent with the actual reservoir characteristics

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  • A well test interpretation method and apparatus for an abnormally high pressure carbonate volatile reservoir
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  • A well test interpretation method and apparatus for an abnormally high pressure carbonate volatile reservoir

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[0022] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described The embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the implementation in this application, all other implementations obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0023] Taking into account the characteristics of elastoplastic or plastic deformation in carbonate reservoirs with abnormal high pressure, when the oil field is put into development, with the release of formation pressure, the reservoir and fluid properties, rock morphology and structure may change; in addition, abnormal high pressure Oil r...

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Abstract

The present specification provides a well test interpretation method and apparatus for an abnormally high pressure carbonate volatile reservoir. The interpretation method comprises the following steps: establishing an abnormally high pressure carbonate formation model, wherein the formation model comprises a matrix system and a fracture system, the matrix is assumed to be plate-shaped, oil is supplied to the fracture, and finally crude oil flows into the wellbore through the fracture, and the matrix does not supply oil to the wellbore; establishing a well test interpretation model according tothe formation model; obtaining the well test data of the abnormally high pressure carbonate volatile reservoir and then interpreting the data according to the well test interpretation model. In thisscheme, fracture factors are taken into account and dual media are used to describe the formation, and the formation model of abnormal high pressure carbonate rock is established. The well test interpretation model based on the formation model can be used to reliably interpret the abnormal high pressure carbonate volatile reservoir.

Description

Technical field [0001] This manual relates to a well test interpretation method and device for abnormally high pressure carbonate volatile oil reservoirs. Background technique [0002] Well testing is the overall process of measuring the pressure or flow changes over time by running the pressure gauge downhole to obtain the parameters of the well or formation, and analyzing and processing the test data. The well test includes two parts: field test and data analysis and processing. The mine field test designs test instruments and test techniques, and the analysis and processing of test data involves the oil and gas seepage theory and its application. The well test interpretation method is to use the seepage theory to analyze the test data and evaluate the formation or well parameters. It is the practical application of the oil and gas seepage theory in oil and gas field development. Over the years, many practical well test interpretation methods have been developed for different...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20G06F2111/10G06F2119/06
Inventor 何聪鸽赵伦许安著范子菲罗二辉何军张安刚单发超陈礼曾行薄兵赵文琪孙猛
Owner PETROCHINA CO LTD
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