Method for detecting analogue cable formation tester

A stratum tester and stratum test technology, applied in the direction of instruments, electrical digital data processing, special data processing applications, etc., can solve the problems that cannot be done
CN100437553CInactive Publication Date: 2008-11-26CHINA OILFIELD SERVICES +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA OILFIELD SERVICES
Publication Date
2008-11-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The test process with analog cable stratum tester includes establishing finite element model for the test process of cable stratum tester; setting the parameters of finite element model stratum and instrument and calculating the matrix values except pressure and pressure and pressure derivative; and calculating the relation between pressure change in test area with stratum parameters and instrument parameters based on the mathematic model with known matrix values. By means of the finite element method, the present invention obtain relation between pressure change in test area with stratum parameters and instrument parameters via solving in the mathematic model of complex test area, and has short time and low cost.
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Description

Technical field

[0001] The invention relates to a method for simulating the test of a cable formation tester in the technical field of petroleum exploration, in particular to a method that uses a three-dimensional finite element numerical method to simulate the test process of the cable formation tester to obtain the relationship between test pressure changes and formation parameters and instrument parameters , The method of optimizing the instrument parameters of the tester. Background technique

[0002] Since the first commercial formation tester came out in 1955, the formation tester has gradually developed from an instrument that can only perform sampling to an instrument with multiple functions that is indispensable in reservoir formation evaluation. In order to evaluate the reservoir formation, it is necessary to use the formation tester to accurately test the formation parameters. During the test, by detecting the pressure of the formation tester, according to the given fl...

Claims

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