A CLASSIFICATION METHOD FOR COMPLEX FAULT-BLOCK RESERVOIRS

A complex fault block and classification method technology, applied in the field of classification of complex fault block oil and gas reservoirs, can solve the problem of no complete classification scheme for complex fault block oil and gas reservoirs

Active Publication Date: 2017-06-06
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] At present, there is no complete and systematic classification scheme for the classification of complex fault-block oil and gas reservoirs

Method used

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Embodiment Construction

[0032] The present invention classifies the main controlling factors that control the formation of complex fault block oil and gas reservoirs, and then classifies fault oil and gas reservoirs according to the number of faults that control the oil and gas reservoirs, and then according to the plane shape of the faults (the plane combination of faults) , the occurrence of faults and formations, the combination style of faults on the profile, the profile shape of faults, fault blocks or fault nose oil and gas reservoirs determine the classification of oil and gas reservoirs, and a classification method for complex fault block oil and gas reservoirs is obtained.

[0033] The present invention is implemented through the following concrete steps:

[0034] 1) In the complex fault-block reservoirs, according to the main controlling factors of reservoir formation, they can be divided into fault reservoirs, fault-lithology reservoirs, and lithology-fault reservoirs;

[0035] 2) For faul...

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Abstract

The invention discloses a classification method of complex oil-gas blocked reservoirs. The oil-gas reservoirs can be divided into oil-gas faulted reservoirs, faulted-lithologic oil-gas reservoirs and lithologic-faulted oil-gas reservoirs according to the main controlling factor of the trapping seasons of the complex oil-gas blocked reservoirs; the oil-gas faulted reservoirs are divided into single-fault controlled oil-gas reservoirs, double-fault controlled oil-gas reservoirs and multi-fault controlled oil-gas reservoirs according to the number of faults controlling the oil-gas reservoirs; the single-fault controlled oil-gas reservoirs are classified; the double-fault controlled oil-gas reservoirs are classified; the multi-fault controlled oil-gas reservoirs are classified; the different reservoir types are finally summed up, and classification of the complex oil-gas blocked reservoirs is finished. People can better understand the distribution rule of the complex oil-gas blocked reservoirs, know the formation characteristics of the reservoirs and research the distribution pattern of oil and gas, and further roll prospecting on older complex oil-gas blocked fields and exploration and development of similar new regions are facilitated.

Description

technical field [0001] The invention relates to the geological field of petroleum exploration and development, in particular to a classification method of complex fault block oil and gas reservoirs. Background technique [0002] At present, oil and natural gas are widely distributed in nature. At present, there are a large number of discovered oil and gas reservoirs in basins in the world, and the types are also different. According to different needs and purposes, hundreds of classification schemes for oil and gas reservoirs have been proposed. The type of oil and gas reservoir largely affects the exploration method and development plan. In order to better understand the formation and distribution characteristics of various oil and gas reservoirs, study the distribution rules of oil and gas reservoirs, and guide oil and gas exploration work more effectively, it is necessary to scientifically and rationally classify many oil and gas reservoirs in the world. [0003] The p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V9/00
Inventor 马存飞林承焰董春梅袁梦影
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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