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A method and device for judging reservoir fluid trend and compaction trend

A technology of compaction trend and fluid, which is applied in the field of petroleum geophysical exploration, can solve the problems of increasing reservoir prediction multi-solution, achieve the effect of improving accuracy and overcoming multi-solution

Active Publication Date: 2022-07-05
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Conventional methods usually use one attribute to solve a problem. The physical meaning represented by each attribute and the method of extraction are quite different, which leads to conflicts in the prediction process and increases the multi-solution of reservoir prediction.

Method used

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  • A method and device for judging reservoir fluid trend and compaction trend
  • A method and device for judging reservoir fluid trend and compaction trend
  • A method and device for judging reservoir fluid trend and compaction trend

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Embodiment Construction

[0060] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the non-limiting example embodiments shown in the drawings and detailed in the following description to more fully describe the examples of the present disclosure. Examples and their various features and advantageous details. It should be noted that the features shown in the figures are not necessarily drawn to scale. The present disclosure omits descriptions of known materials, components, and process technologies so as not to obscure the example embodiments of the present disclosure. The given examples are only intended to facilitate the understanding of the implementation of the example embodiments of the present disclosure and to further enable those skilled in the art to practice the example embodiments. Accordingly, these examples should not be construed as limiting the scope of the embodiments of the present disclosure.

[0061] ...

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Abstract

This specification discloses a method and device for judging reservoir fluid trend and compaction trend, wherein the method for judging reservoir fluid trend and compaction trend includes: acquiring pre-stack seismic gathers of a target area; The longitudinal wave velocity, shear wave velocity and density data volume are obtained from the previous seismic gather; the pseudo attenuation attribute volume is obtained by using the longitudinal wave velocity, the shear wave velocity and the density data volume; according to the pseudo attenuation attribute volume, the rotation angle is used as a parameter. The orthogonal attribute factor expression is obtained based on the petrophysical analysis to obtain the rotation angle value, and the rotation angle value is substituted into the orthogonal attribute factor expression to obtain the corresponding orthogonal attribute factor; based on the orthogonal attribute factor, the reservoir fluid trend and Compaction trend.

Description

technical field [0001] The present specification relates to the technical field of petroleum geophysical exploration, and in particular, to a method and device for judging reservoir fluid trends and compaction trends. Background technique [0002] In the process of petroleum exploration and development, the fluid distribution in the reservoir and the compaction trend of the reservoir rock are two very important indicators, which determine the development potential of the reservoir. The trend of reservoir compaction reflects the distribution law of the pore space of the reservoir. The more severe the compaction, the smaller the reservoir space, resulting in less recoverable resources per unit volume. The fluid trend reflects the different types of fluids in the reservoir. The higher the water saturation in the unit reservoir space, the less hydrocarbon content in the reservoir, and the worse the economy of the reservoir. Predicting the compaction trend and fluid trend of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30
CPCG01V1/306
Inventor 王磊石兰亭方乐华陈彬滔郭维华
Owner PETROCHINA CO LTD
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