Fat gas mud shale stratum well log standardizing method

A logging curve and mud shale technology, which is applied in the field of logging standardization, can solve the problems of high organic matter content, complex lithology, and cannot be applied to mud shale layers, etc. Effect
CN104047597AInactive Publication Date: 2014-09-17CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2014-09-17
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a fat gas mud shale stratum well log standardizing method which comprises the following steps: (a), selecting and constructing a standard layer; (b) carrying out eigenvalue analysis; (c) carrying out curve correction; (d) carrying out standardization effect verification. By utilizing the method disclosed by the invention, when mud shales and neighborhood layers are short of two stable standard layers, curve standardization can be realized, the comparability of well logs of multiple wells is increased, effective popularization of heterogeneous modeling is ensured, and further the precision of heterogeneous logging evaluation is improved.
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Description

technical field

[0001] The invention relates to a well logging standardization method, in particular to a well logging curve standardization method for an oil-gas shale formation. Background technique

[0002] The standardization of well logging data is a basic work before the development of fine reservoir evaluation and joint well-seismic inversion. It can eliminate systematic errors in well logging data, restore the true value of well logging data as much as possible, and enhance multi-well The comparability between curves is the guarantee for improving the accuracy of logging interpretation and seismic inversion. The standardization of curves is mainly based on the principle that "same lithology formations have similar logging responses under the same depositional environment". Two sets of standard layers with stable lithology are selected for eigenvalue analysis and correction amount. After correction, the curves have similar The frequency histogram distribution or eige...

Claims

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