Fluid identification method and device

A fluid identification and fluid technology, which is applied in the field of petroleum exploration, can solve the problem that fluids containing acidic mineral conglomerate cannot be accurately identified
CN110873904AActive Publication Date: 2020-03-10PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PETROCHINA CO LTD
Publication Date
2020-03-10

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Abstract

The invention discloses a fluid identification method and device. The method comprises the steps: determining a classification critical value of the content of acid minerals used for classifying conglomerate reservoirs, classifying the conglomerate reservoir according to the classification critical value and the content of acidic minerals in the conglomerate reservoir to obtain a conglomerate reservoir classification result, establishing an acid mineral content and resistivity cross plot corresponding to the conglomerate reservoir classification result, and identifying the fluid type in the conglomerate reservoir according to the acid mineral content and resistivity cross plot. According to the method and device, the technical problem that the fluid containing the acid mineral conglomeratecannot be accurately judged in the prior art is solved.
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Description

technical field

[0001] The invention relates to the technical field of petroleum exploration, in particular to a fluid identification method and device. Background technique

[0002] In related technologies, for the exploration and development of oil and gas reservoirs, the identification of reservoir fluid properties is an important task of logging evaluation. Common fluid property identification methods are summarized as follows: resistivity method, crossplot method, P 1 / 2 method, nuclear magnetic resonance logging discrimination method, etc. For conglomerate reservoirs containing acidic minerals, affected by the eruptive diagenetic mechanism of acidic volcanic rocks, the reservoir space is generally dominated by primary pores and secondary pores, with a large pore-throat ratio and complex pore structure, showing extremely strong At the same time, the analysis and research on the relationship between the content of acidic mineral components and resistivity found that whe...

Claims

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