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Method for regulating regional interpretation parameters in self-adaption mode

A technology for self-adaptive adjustment and interpretation of parameters, applied in electrical digital data processing, special data processing applications, instruments, etc., it can solve the problem of excessive effort and time, affecting the reliability of logging interpretation results, and the inability of mineral interpretation models to fully describe the subsurface. Geological conditions and other problems, to achieve the effect of improving quality and reducing program debugging time

Inactive Publication Date: 2014-06-04
刘洋
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Problems solved by technology

However, the above-mentioned optimized logging interpretation technology has the following two problems: (1) The mineral interpretation model cannot fully describe the subsurface geological conditions, and there may be other minerals that may affect the logging response. Fixed regional interpretation parameters will affect the reliability of logging interpretation results; (2) Since each logging value, initial value of reservoir parameters, regional interpretation parameter values ​​and errors are combined into an organic whole, the relationship between them Interactions make debugging of interpretation parameters difficult, and data processing takes far more energy and machine time than conventional analysis programs

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  • Method for regulating regional interpretation parameters in self-adaption mode
  • Method for regulating regional interpretation parameters in self-adaption mode
  • Method for regulating regional interpretation parameters in self-adaption mode

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Embodiment Construction

[0017] figure 1 It is a flowchart of a method for adaptively adjusting regional interpretation parameters provided by the present invention, and the steps of the method are as follows.

[0018] Step (1) Select the regional interpretation parameters according to the provided stratigraphic information, see the table below, and establish the logging interpretation model.

[0019] 　 quartz dolomite Calcite muddy porosity DEN 2.66 2.87 2.71 2.42（2.2-2.8） 1 DT 55.5 43.5 47-49 125（70-150） 189 CN -0.02 0.01 -0.01 0.44（0.25-0.5） 1 GR 4 2 7 200（150-200） 15 PE 1.81 3.14 5.81 7 0.36

[0020] Step (2) Select a set of interpretation parameters from the table. Based on the interpretation model, response equation, interpretation parameters, initial values ​​of reservoir parameters and objective function, an optimal data processing is performed on the whole well section. Fit the theoretically calculated curve value afte...

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Abstract

An optimal well logging interpretation technique based method for regulating regional interpretation parameters in a self-adaption mode is characterized by comprising the steps that A names of mineral constituents in a stratum and corresponding regional interpretation parameter value field ranges are determined; B a regulating order and a regulating direction of the argillaceous regional interpretation parameters are obtained; C the argillaceous regional interpretation parameters are automatically regulated on the basis of the regulating order and the regulating direction; D as for the regulating stopping condition, a difference value of a theoretical calculation curve value and an actual well logging value reaches the minimum or the argillaceous regional interpretation parameters exceed a given range. The method can not only shorten regulating time of the regional interpretation parameters, but also improve quality of optimal logging interpretation results.

Description

technical field [0001] The invention relates to a method for adaptively adjusting regional interpretation parameters based on optimized well logging interpretation technology, which is characterized in that it can reduce the debugging difficulty of regional interpretation parameters in optimization processing software and improve the quality of interpretation results. Background technique [0002] At present, the optimal logging interpretation technology is based on the generalized inversion theory of geophysics, based on the actual logging values ​​that reflect the formation characteristics after environmental impact correction, and according to the appropriate interpretation model and logging response equation, through a reasonably selected area The corresponding theoretical logging values ​​are back-calculated and compared with the actual logging values. The objective function is established according to the non-linear weighted least square principle, and the unknown reser...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 刘洋
Owner 刘洋
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