Quantitative Prediction Method of Compaction Porosity Reduction

A prediction method and database technology, applied in the direction of prediction, data processing applications, instruments, etc., can solve the problem of not being able to comprehensively consider the physical property change law of sand body reservoirs, the reduction of primary pores, and the inability to further reveal the physical property change law of clastic rock reservoirs And other issues
CN108388960BActive Publication Date: 2021-10-15YANGTZE UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANGTZE UNIVERSITY
Publication Date
2021-10-15

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Abstract

The invention discloses a quantitative prediction method of compaction porosity reduction. The method comprehensively considers sedimentary facies, particle size, cuttings particles, rigid particles, roundness, sorting property, shale content, cementation strength, and cementation type. , cementation time, dissolution time, burial depth, abnormal high pressure, and sedimentation rate on mechanical compaction, numerical simulations of mechanical compaction were carried out in the time-space domain, and a model that can reflect the pore evolution and mechanical Quantitative model between compactions. The model is scientific, reasonable and accurate, and provides a new simulation method for the quantitative prediction of compaction porosity reduction.
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Description

technical field

[0001] The invention relates to the technical field of oil and gas exploration and development, in particular to a quantitative prediction method for compaction porosity reduction. Background technique

[0002] During the process of sediment burial and diagenesis, the rock volume and pore space gradually shrink, and the rock becomes more and more dense. Among them, mechanical compaction is the main controlling factor of sandstone reservoir performance. It accounts for more than the vast majority of the total pore loss of the reservoir, thus greatly affecting the reservoir properties of the sand body. The geological factors affecting the mechanical compaction of clastic rock reservoirs are not only related to the material composition and grain structure of the sand body, but also the diagenetic environment is an important factor affecting the mechanical compaction during the burial process. As the diagenetic process progressed, various diagenetic geological f...

Claims

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