Method for establishing burial-thermal evolution history map of shale gas reservoir

A shale gas reservoir and thermal evolution technology, which is applied in the field of establishing a burial-thermal evolution history map of shale gas reservoirs, can solve the problems of low accuracy and reliability of the burial-thermal evolution history map, and achieve high thermal evolution history accuracy Effect

Inactive Publication Date: 2019-11-29
CHANGAN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for establishing a burial-thermal evolution history map of shale gas reser...

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  • Method for establishing burial-thermal evolution history map of shale gas reservoir
  • Method for establishing burial-thermal evolution history map of shale gas reservoir
  • Method for establishing burial-thermal evolution history map of shale gas reservoir

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them.

[0034] Based on the embodiments of the present invention, those skilled in the art can make some simple modifications and embellishments without creative work, and all other obtained embodiments belong to the protection scope of the present invention.

[0035] A method for establishing a burial-thermal evolution history map of a shale gas reservoir according to an embodiment of the present invention includes the following steps:

[0036] (1) Collect, measure or predict the current geothermal field data;

[0037] The current geothermal field data includes the layered data of the current stratum and the static temperature measurement data of the present stratu...

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Abstract

The invention provides a method for establishing a burial-thermal evolution history map of a shale gas reservoir. The method comprises the steps of acquiring layering data of a current stratum and static temperature measurement data of the current stratum; establishing a stratum lithology model of an interval for research; acquiring various burial history parameters; calculating the paleo-thickness and the buried depth of each stratum in each period; determining the ground temperature gradient, the heat conductivity, the heat generation rate and the ground heat flow value characteristics of the current ground temperature field; analyzing a formation mechanism and an evolution rule of the paleo-geothermal field; determining the maximum paleo-ground temperature experienced by the stratum towhich the sample belongs in the geological evolution process by using vitrinite reflectivity data; moreover, determining the paleo-geothermal gradient at the moment jointly by utilizing the Ro data ofthe multiple samples at different depths; determining a paleo-temperature evolution process of the sample, restoring a paleo-geothermal gradient evolution history, and drawing a burial history map ofthe paleo-geothermal field of the research area; calculating hydrocarbon source rock maturity evolution history; establishing and drawing a burial-thermal evolution history map of a sedimentary basin. According to the invention, high thermal performance history precision can be obtained.

Description

technical field [0001] The invention belongs to the fields of restoration of thermal evolution history of oil-gas-bearing basins and geological accumulation of oil and gas, and specifically relates to a method for establishing a burial-thermal evolution history map of shale gas reservoirs. Background technique [0002] The analysis of the tectonic thermal evolution history of sedimentary basins is one of the frontier technologies and hotspots in the field of shale gas geology. Through the analysis of the burial-thermal evolution history map of the area where the shale gas reservoir is located, the burial and subsidence history of the formation, the uplift and denudation history of the formation, the paleogeothermal evolution history of the formation, and the paleogeotemperature and hydrocarbon source experienced by the source rock can be obtained. The maturity evolution history of rocks, the hydrocarbon generation history of source rocks and other information can be used to ...

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Application Information

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IPC IPC(8): G16Z99/00
CPCG16Z99/00
Inventor 于强任战利李荣西吴小力王宝江覃小丽周伟
Owner CHANGAN UNIV
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