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Shale gas single well geological comprehensive evaluation method

A comprehensive evaluation and shale gas technology, applied in the field of shale gas exploration, can solve the problems of wasting manpower and material resources, inaccurate comprehensive geological evaluation of shale gas single wells, and unclear shale gas exploration goals, so as to avoid waste. Effect

Active Publication Date: 2016-11-30
SOUTHWEST PETROLEUM UNIV +1
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  • Application Information

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Problems solved by technology

Due to inconsistent research content and focus, it is very likely that the comprehensive geological evaluation of shale gas single well will be inaccurate, making the exploration target of shale gas unclear, and wasting manpower and material resources

Method used

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  • Shale gas single well geological comprehensive evaluation method
  • Shale gas single well geological comprehensive evaluation method
  • Shale gas single well geological comprehensive evaluation method

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0050] The embodiment of the present invention provides a comprehensive geological evaluation method for a single shale gas well, which can objectively and comprehensively evaluate the geological conditions of a single shale gas well, and provide a basis for later exploitation of the well, adjacent shale gas single wells, and geological evaluation of shale gas regions. Detailed reference materials break the limitations of existing evaluation methods, clarify the geological comprehensive situation of shale gas single wells, and avoid unnecessary waste; in the process of geological evaluation of shale gas single wells, the following issues need to be considered:

[0051](1) Shale gas is self-generated and self-storage unconventional gas. Kerogen type, thermal maturity, TOC content, shale thickness, and buried depth are the basic contents of compre...

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Abstract

The present invention discloses a shale gas single well geological comprehensive evaluation method. The method comprises the following steps: stratigraphic division and comparison and sedimentary facies analysis; shale gas reservoir forming condition and main controlling factor analysis; shale fragility analysis; evaluation grading according to a shale gas selection region evaluation parameter table suitable for exploration and development of a research region; and finally, optimization of the layer segments of profitability and the ranges of profitability. Through adoption of the technical scheme, the shale gas single well geological comprehensive evaluation method can objectively and roundly evaluate the shale gas single well geological condition and can provide detailed reference data for well exploitation and geological evaluation of adjacent shale gas single wells and shale gas regions in the later period so as to break the limitation of the current evaluation method, define the shale gas single well geological comprehensive condition and avoid unnecessary waste.

Description

technical field [0001] The invention belongs to the technical field of shale gas exploration, and in particular relates to a shale gas single well geological comprehensive evaluation method. Background technique [0002] The United States is the earliest and most successful country in the exploration and development of shale gas in the world. In the past 10 years, major breakthroughs and large-scale promotion and application of shale gas geological theory and exploration and development technology have promoted the rapid increase of shale gas reserves and production in the United States and the entire North American region, changed the source of natural gas supply in the United States, and affected the global energy supply pattern. In 2009, US shale gas production was close to 100 billion m 3 , exceeding the annual output of conventional natural gas in my country. In 2011, the annual output of shale gas in the United States was about 172 billion m 3 , which is 34% of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V11/00
Inventor 林丹张廷山廖纪佳祝海华谢磊舒兵何益张志诚何映颉
Owner SOUTHWEST PETROLEUM UNIV
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