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Carbonate rock microfacies type identification method and sedimentary facies description method thereof

A carbonate rock type identification technology, applied in earthwork drilling, wellbore/well components, etc., can solve the problem of low accuracy of carbonate sedimentary facies description, low recognition rate of carbonate rock microfacies types, etc. problem, to achieve the effect of improving description accuracy, increasing accurate recognition, and improving accuracy

Inactive Publication Date: 2015-10-14
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0011] The present invention aims at at least solving the technical problems existing in the prior art, and particularly innovatively proposes a carbonate rock microfacies type identification method to solve the problem of low identification rate of carbonate rock microfacies types
[0012] The present invention also provides a method for describing carbonate rock sedimentary facies to solve the problem of low accuracy in describing carbonate rock sedimentary facies

Method used

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  • Carbonate rock microfacies type identification method and sedimentary facies description method thereof
  • Carbonate rock microfacies type identification method and sedimentary facies description method thereof
  • Carbonate rock microfacies type identification method and sedimentary facies description method thereof

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Embodiment Construction

[0046] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present invention, but should not be understood as limiting the present invention.

[0047] figure 1 Shows the flow chart of the carbonate microfacies identification method provided in Example 1 of the present invention, such as figure 1 As shown, the method includes the following steps.

[0048] S100, the microfacies division step, the microfacies division of the core section of a single well to obtain multiple microfacies types.

[0049] In the microfacies division step, usually based on the core assemblage and sedimentary structure characteristics reflected by the core and thin section identifica...

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Abstract

The invention provides a carbonate rock microfacies type identification method and a sedimentary facies description method thereof; the microfacies type identification method comprises the following steps: a microfacies classifying step: carrying out microfacies classification for a single well coring segment so as to obtain a plurality of microfacies types; a microfacies identification step: obtaining features of the microfacies types, and identifying each microfacies type according to the features of the microfacies types, wherein the microfacies type features comprise at least one of the following features: imaging logging image feature and earthquake reflection composition feature. In a microfacies types identifying process, the method combines the imaging logging image feature with the earthquake reflection composition feature, thus more accurately identifying microfacies of the carbonate rocks.

Description

Technical field [0001] The invention belongs to the field of petroleum exploration and development, and specifically relates to a method for identifying carbonate microfacies type and a method for describing sedimentary facies. Background technique [0002] At present, common sedimentary facies description methods mainly include the following steps: [0003] S10. The microfacies division step, the microfacies division of the core section of a single well to obtain multiple microfacies types; [0004] S20. The microphase identification step, acquiring the characteristics of each microphase type, and identifying each microphase type according to the characteristics of each microphase type; [0005] S30. Single-well facies division step, according to the characteristics of each micro-facies type and the characteristics of the uncorked section of a single well, the micro-facies division of the uncorked section of a single well; [0006] S40. The facies division step of the continuous well ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00
Inventor 游瑜春刘国萍冯琼
Owner CHINA PETROLEUM & CHEM CORP
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