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Stratum seam-and-hole development three-dimensional modeling method

A 3D modeling and 3D model technology, applied in the field of 3D modeling of stratum fracture-cavity development, can solve problems such as the difficulty in establishing a 3D model of stratum fracture-cavity development, and reduce the construction period of exploratory wells, reduce the risk of engineering accidents, and reduce operating costs Effect

Inactive Publication Date: 2018-03-06
郭强
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Problems solved by technology

[0003] The purpose of the present invention is to propose a three-dimensional modeling method for stratum fracture-cavity development, to solve the problem that it is difficult to establish a stratum fracture-cavity development three-dimensional model in the prior art, and to realize the purpose of establishing a fracture-cavity development model through geological research means

Method used

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  • Stratum seam-and-hole development three-dimensional modeling method

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Embodiment 1

[0016] like figure 1 The three-dimensional modeling method for formation fracture-vuggy development shown in the figure, in a certain oil and gas exploration and development block, according to the geological conditions and research target requirements, a total of 5 representative exploration wells are selected in all directions, including the trap center point , carry out the following technical steps: (a) During the drilling construction process, carry out closed coring operations for layers with oil and gas shows, conduct electron microscope scanning observation and NMR analysis on the cores taken out, and obtain their porosity and permeability parameters; ( b) During the drilling construction process, carry out conventional logging operations on the entire well section. Logging items include resistivity logging, acoustic time difference logging, spontaneous potential logging, natural gamma logging, compensated neutron logging, density Logging and logging interpretation; (c...

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Abstract

The invention discloses a three-dimensional modeling method for formation fracture-cavity development. By adopting a logging method combining conventional logging and micro-resistivity scanning imaging logging, combined with coring to analyze specific fracture-cavity parameter characteristics, the fracture-cavity in the formation is comprehensively analyzed. identification, so as to unify the strata developed by fractures and caves with specific parameter characteristics, and establish a three-dimensional model of fractures and caves in strata, so as to solve the problem that it is difficult to establish a three-dimensional model of fractures and caves in the existing technology, and realize the establishment of fractures and caves by means of geological research. The purpose of the 3D model of fracture-cavity development.

Description

technical field [0001] The invention relates to the field of geological exploration and development, in particular to a three-dimensional modeling method for formation fracture-cave development. Background technique [0002] Fracture-vuggy formations often have the characteristics of irregular development of fractures and caves, low matrix porosity, poor permeability, vertical and horizontal distribution of reservoir space, and strong heterogeneity. Difficult item. Affected by tectonic movements, fractured-vuggy formations often have the characteristics of deep burial, small difference in wave impedance, weak seismic reflection, low resolution, disordered seismic phases, and low resolution and accuracy of seismic sequences. The geological research of strata tends to be carried out by means of well logging. However, conventional logging methods are not very pertinent when studying fractured-vuggy formations, and specific parameters cannot be obtained. It is difficult to est...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 郭强
Owner 郭强
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