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A method and device for analyzing the origin of mud shale

An analysis method and shale technology, applied in the field of shale oil and gas exploration, can solve problems such as increasing oil and gas exploration costs, and achieve the effect of reducing analysis costs

Active Publication Date: 2019-08-09
CHINA UNIV OF GEOSCIENCES (BEIJING)
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Problems solved by technology

Therefore, relying only on cores will greatly increase the cost of oil and gas exploration

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  • A method and device for analyzing the origin of mud shale
  • A method and device for analyzing the origin of mud shale
  • A method and device for analyzing the origin of mud shale

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Embodiment Construction

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

[0054] It...

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Abstract

The embodiment of the invention provides a shale factor analyzing method and device. The method comprises the following steps: obtaining log data of a plurality of exploration wells in a to-be-explored region, wherein the exploration well comprises at least one core well and a plurality of non-core wells; performing Milankovitch cycle analysis on the corresponding exploration wells according to the log data and establishing an astronomical cycle stratigraphic framework on each exploration well according to the analysis result; calibrating each exploration well, respectively; connecting the astronomical cycle stratigraphic framework of the core well and the astronomical cycle stratigraphic framework of each non-core well according to the calibration result and obtaining a connection relationship; obtaining the shale factor corresponding to the core well; and obtaining the shale factor of the non-core well according to the shale factor and the connection relationship of the core well. The device is applied to the aforementioned method. According to the embodiment of the invention, the shale factor of the non-core well is analyzed through the core well without the need of performing coring analysis on the non-core well, thereby reducing the analysis cost.

Description

Technical field [0001] The invention relates to the technical field of shale oil and gas exploration, in particular to a method and device for analyzing the genesis of shale. Background technique [0002] In traditional sandstone or carbonate rock research, the cause of formation in a coreless well is usually determined based on logging facies. That is, using the characteristics of sedimentary cycles of various types of sedimentary bodies on logging, establish the unique logging facies templates of various types of sedimentary cycles, so as to use the logging facies templates to realize the formation of coreless wells. Unlike sandstone and carbonate, which have frequent vertical lithological changes, the lithology of shale is relatively stable in the vertical direction, which results in the insignificant difference in logging responses of shale in the vertical direction, which makes it not yet mature. Logging facies templates of various genetic types of shale. Therefore, the ge...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 张建国姜在兴王思琦王力
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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