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Shale gas reservoir three-dimensional geological 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 problems such as single method, insufficient comprehensiveness, and difficulty in drilling and completion data support.

Inactive Publication Date: 2018-03-06
彭绍宾
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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 geological 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 three-dimensional geological modeling method for shale gas reservoirs. The method selects N exploratory wells with representative significance in the same block, and performs conventional logging, imaging logging, and VSP logging for each exploratory well to make a complete and comprehensive Well logging interpretation, and then by coring the sidewall of the reservoir obtained from the logging interpretation, scanning electron microscope observation, porosity measurement, rock strain experiment of the cores taken, combined with logging interpretation, using modeling software to establish Single well profile model, so that the single well model of N wells can be integrated into the 3D geological model of the entire shale gas reservoir, so as to realize the comprehensive and accurate establishment of the 3D geological model of shale gas reservoir, and facilitate the detailed analysis of the basic geological information of the formation. purpose of inquiry.

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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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30
CPCG01V1/306G01V2210/624
Inventor 彭绍宾
Owner 彭绍宾
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