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Hydrate saturation determination method, device and equipment

A hydrate and saturation technology, which is applied in the field of natural gas hydrate exploration and development, can solve the problems of calculating natural gas hydrate saturation and achieve the effect of improving accuracy

Pending Publication Date: 2021-06-11
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

[0004] The purpose of the embodiment of this specification is to provide a method, device and equipment for determining the saturation of natural gas hydrate to solve the problem of how to accurately calculate the saturation of natural gas hydrate

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  • Hydrate saturation determination method, device and equipment
  • Hydrate saturation determination method, device and equipment
  • Hydrate saturation determination method, device and equipment

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments are only some of the embodiments of the present specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0018] In order to solve the above technical problems, the embodiment of this specification proposes a method for determining hydrate saturation. The hydrate saturation determination method is executed by the hydrate saturation determination equipment, and the hydrate saturation determination equipment includes but not limited to servers, industrial computers, PCs, etc. Such as figure 1 As shown, the method for determining the degree of hydrate satu...

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Abstract

The embodiment of the invention provides a hydrate saturation determination method, device and equipment. The method comprises the following steps: acquiring logging data and rock component mineral parameters of a target reservoir; calculating rock dry skeleton parameters of the target reservoir according to the rock component mineral parameters; calculating estimated longitudinal wave velocities corresponding to the at least two groups of candidate model parameters by using the rock dry skeleton parameters; selecting an application model parameter from the candidate model parameters based on a comparison result of the estimated longitudinal wave speed and the actually measured longitudinal wave speed; calculating estimated longitudinal wave inverse quality factors corresponding to at least two candidate hydrate saturations in combination with the application model parameters, the longitudinal wave inverse quality factors and the rock dry skeleton parameters; and determining target hydrate saturation in the candidate hydrate saturation according to a comparison result of the estimated longitudinal wave inverse quality factor and the actually measured longitudinal wave inverse quality factor. According to the method, the accuracy of the determined hydrate saturation is improved, and the production and exploitation process is facilitated.

Description

technical field [0001] The embodiments of this specification relate to the technical field of natural gas hydrate exploration and development, and in particular to a method, device and equipment for determining hydrate saturation. Background technique [0002] Hydrate, generally refers to natural gas hydrate, is an ice-state, crystalline cage compound formed by natural gas and water under high-pressure and low-temperature conditions. my country has relatively large natural gas hydrate reserves, and the development and utilization of these hydrates can effectively increase the available energy and alleviate the energy crisis. [0003] However, since the exploitation of natural gas hydrate is relatively difficult, it is an essential step to perform quantitative evaluation on the natural gas hydrate reservoir before performing a specific exploitation process. The saturation degree of natural gas hydrate is used to measure the content of hydrates contained in the natural gas hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V99/00G01V11/00
CPCG01V11/00G01V20/00
Inventor 张峰武存志李向阳
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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