Production data analysis method for shale gas well with varying production system

A technology for production data and shale gas wells, which is applied in electrical digital data processing, special data processing applications, instruments, etc., and can solve problems such as missing, large pressure and production errors, and poor production data quality.
CN108614902AActive Publication Date: 2018-10-02CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2018-10-02

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Abstract

The invention provides a production data analysis method for a shale gas well with varying production systems, and belongs to the field of oilfield development. The method comprises: (1) establishinga shale gas well test analysis model; (2) obtaining production data and required basic data; (3) calculating output regularized pressure and an output regularized pressure differential coefficient, drawing a double logarithmic chart, the double logarithmic chart including two curves of a double logarithmic curve for the output regularized pressure and material balance time, and a double logarithmic curve for the output regularized pressure differential coefficient and material balance time; or calculating output regularized pressure integral and an output regularized pressure integral differential coefficient, drawing a double logarithmic chart, the double logarithmic chart including two curves of a double logarithmic curve for the output regularized pressure integral and material balancetime, and a double logarithmic curve for the output regularized pressure integral differential coefficient and the material balance time.
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Description

technical field

[0001] The invention belongs to the field of oilfield development, and in particular relates to a method for analyzing production data of shale gas wells with changing production systems, which is applied to well test analysis and dynamic description of shale gas wells. Background technique

[0002] Well testing is based on the theory of seepage mechanics, using testing instruments as a means to study and determine the production capacity and physical parameters of test wells and oil, gas, and water layers by measuring production dynamic data such as oil, gas, water, and well pressure and production. As well as the technology of distinguishing the connection relationship between wells or layers, it plays an extremely important role in the exploration and development of new oil and gas fields and the dynamic adjustment of old areas. In order to understand the parameters of a specific well and the corresponding reservoir, according to the different sources of d...

Claims

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