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Shale gas reservoir three-dimensional geologic modeling method

A technology for three-dimensional geology and shale gas reservoirs, which is applied in the field of three-dimensional geological modeling of shale gas reservoirs, and can solve the problems of difficult drilling and completion data support, single method, and insufficient comprehensiveness.

Inactive Publication Date: 2016-07-20
CHENGDU CHUANGYUAN OIL & GAS TECH DEV
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AI Technical Summary

Problems solved by technology

However, the geological evaluation methods of shale gas reservoirs in the domestic prior art are single and not comprehensive enough to provide sufficient data support for drilling and completion construction and later production

Method used

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  • Shale gas reservoir three-dimensional geologic modeling method

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Embodiment 1

[0016] Such as figure 1 In the three-dimensional geological modeling method of shale gas reservoir shown, in a certain shale gas exploration and development block, according to geological conditions and research target requirements, select N exploratory wells with representative significance, and implement the following technology for each exploratory well Steps: (a) Perform resistivity logging, acoustic logging, spontaneous potential logging, natural gamma ray logging, compensated neutron logging, density logging, and caliper logging on the entire well section to obtain the entire well of the target well (b) Perform micro-resistivity scanning imaging logging on the whole well section, and make logging interpretation; (c) Set the seismic source at the bottom of the well, perform VSP logging, and make logging interpretation. Well interpretation; (d) Using the well logging interpretation in steps (a)~(c) combined with the drilling engineering data, list all reservoirs, and perfo...

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Abstract

The invention discloses a shale gas reservoir three-dimensional geologic modeling method. The method is characterized by selecting N exploration wells having representation meanings in the same region; carrying out conventional logging, imaging logging and VSP logging on each exploration well, and giving complete and comprehensive well logging interpretation; then, carrying out side wall coring on the reservoir obtained through well logging interpretation; and carrying out scanning electron microscope observation, porosity detection and rock strain experiment on the obtained core, and then, with the well logging interpretation being combined, establishing a single well section model by utilizing modeling software, so that single well models of the N wells are allowed to be integrated into a three-dimensional geologic model of the whole shale gas reservoir, the shale gas reservoir three-dimensional geologic model is established comprehensively and accurately, and the purpose of carrying out detailed inquiry on the stratigraphy basic geological information is realized.

Description

technical field [0001] The invention relates to the field of geological exploration and development, in particular to a three-dimensional geological modeling method for shale gas reservoirs. Background technique [0002] Shale oil and gas, as a new source of energy extraction in recent years, has broad prospects around the world for the development of oil and gas resources from oil source formations that were previously thought to be unable to store oil and gas. Unlike the pore channels in conventional sandstone reservoirs, fractures are used in shale formations for oil and gas migration. Fractures can not only provide shale gas accumulation space, but also provide migration channels for shale gas production. As a low-porosity and low-permeability reservoir, shale has a very complex oil and gas production mechanism, involving the relationship between adsorbed gas content and free gas content, natural micro-fractures and fracturing-induced fractures, etc. Natural micro-fract...

Claims

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Application Information

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IPC IPC(8): G06Q50/02G06F17/50G06T17/00
CPCG06Q50/02G06T17/00G06F30/367
Inventor 罗迪杨波张鑫
Owner CHENGDU CHUANGYUAN OIL & GAS TECH DEV
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