A shale reservoir compressibility evaluation method based on support vector machine technology
A support vector machine and shale reservoir technology, applied in data processing applications, instruments, calculations, etc., to achieve important engineering practical value, high generalization ability and robustness, and reduce dependence
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[0053]The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, and preferred embodiments described herein are intended to illustrate and explain the present invention, and is not intended to limit the invention.
[0054]Refer to the attachmentfigure 1 A shale reservoir compressibility evaluation method according to the support vector machine technology, including the following steps:
[0055](1) First, the mineral components and core compressive experiments taken from different levels of mineral content and the core pressure test were first carried out by QEMSCAN technology and rock mechanics experiments. Brittle index, if there is no core, the brittle index based on elastic parameters can be calculated by logging data;
[0056](2) Then, extract the logging feature parameters used to identify cracks, such as logging curve change rate, rock pore structural index, formation factor ratio, saturation ratio, three porosity ratio, skel...
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