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A method for scientifically site underground gas storage

A gas storage, scientific technology, applied in the direction of instruments, data processing applications, prediction, etc., can solve the problems of lack of all elements, quantitative evaluation methods, etc.

Inactive Publication Date: 2019-02-22
PETROCHINA CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

The traditional site selection method is mainly single-factor evaluation, lacking all elements and quantitative evaluation methods. Therefore, a scientific site selection method for underground gas storage is proposed to solve the above problems

Method used

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  • A method for scientifically site underground gas storage
  • A method for scientifically site underground gas storage
  • A method for scientifically site underground gas storage

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Experimental program
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Embodiment

[0057] Applying the quantitative evaluation technology of gas storage sites, four abandoned gas reservoirs BN, L J H, BS22, QMQ ( figure 1 ) for quantitative evaluation and comparison, so as to select the optimal storage site, the quantitative evaluation table of the gas storage site is as follows:

[0058]

[0059]The evaluation factors of the reservoir site are formulated by experts, including ground conditions, old well treatment, structural conditions, trap conditions, reservoir physical properties, burial depth, fluid properties, etc., and the weight value a of each factor is given to establish a single-factor fuzzy evaluation matrix table. Through the operation of fuzzy evaluation matrix R and fuzzy transformation subset D matrix, the degree of membership of the four gas storage sites is calculated, so that the order of the storage sites is optimized as BN, LJH, BS22, and QMQ. Using the grade evaluation method, calculate the membership degree of the optimal warehouse ...

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Abstract

A method for scientifically site underground gas storage includes such step as selecting location of gas storage, mathematical model and quantitative evaluation through practice of scheme design and production operation of gas storage group in Dagang harbor. The invention realizes evaluation and optimization by establishing evaluation elements and boundary standards of underground gas storage site, Based on fuzzy set theory, the evaluation objects are sorted according to their comprehensive scores, According to the value on the fuzzy evaluation set, the grade of the object is evaluated according to the principle of maximum membership degree, thus the mathematical model of reservoir site evaluation is established, and the scientific quantification of reservoir site selection is realized. The key technology of underground gas storage construction is not only supported by theory, but also by technical innovation, which is proved by practice and can be popularized and applied.

Description

technical field [0001] The invention relates to a scientific site selection method, in particular to a scientific site selection method for an underground gas storage, and belongs to the technical field of underground gas storage site selection applications. Background technique [0002] The development of underground gas storage has enabled the effective implementation of natural gas peak shaving and expanded the coefficient of emergency gas supply and strategic storage. At present, domestic experts and scholars are also trying to commercialize underground gas storage. Commercial value and social responsibility combine to make underground gas storage Construction has reached new heights. At the same time, the operation of underground gas storage has high risks. Underground gas storage operates under ultra-high pressure and operates for a long life. The target and location of the storage are optimized to reduce the operating cost of the gas storage and improve the utilizatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/02
CPCG06Q10/04G06Q10/06393G06Q50/02
Inventor 马小明苏立萍张家良杨树合张东星杨艳张凡磊李宝荣王可心唐颖娜徐伟
Owner PETROCHINA CO LTD
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