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Method for describing coal-measures fine-grained sediment structure

A technology of fine-grained structure and fine-grained structure, which is applied in the field of fine-grained sedimentary structure of coal measures, can solve the problems of the complexity of fine-grained sedimentary structure of coal measures and the unclear function of interface identification of fine-grained sedimentary microstructure level.

Inactive Publication Date: 2016-05-11
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] ①Complexity of fine-grained sedimentary structure of coal measures
[0010] Coal-measure fine-grained sedimentary micro-beds have different characteristics and distributions in different coal-measure units, but the role of fine-grained sedimentary fine-grained sedimentary level interface identification is still unclear

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  • Method for describing coal-measures fine-grained sediment structure
  • Method for describing coal-measures fine-grained sediment structure
  • Method for describing coal-measures fine-grained sediment structure

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Embodiment Construction

[0042] According to the method described in the present invention, core sampling analysis is carried out to fine-grained sedimentary rock in the western Shandong area ( as table 2 ), including the following steps:

[0043] 1) Acquisition of structural parameters of coal-measure fine-grained sedimentary rocks, including the collection of stratum collection positions of core samples;

[0044] 2) Identification and description of fine-grained microstructure interfaces, including using a high-power microscope to identify the type of microscopic microstructure, the type of rock in the fine-grained structure, measuring the thickness of the fine-grained layer, the particle size, and the mud and charcoal between the fine-grained and fine-grained layers Thickness of interlayer interval, vertical sequence relationship, and record interface position ( like figure 2 );

[0045] 3) Multivariate analysis of fine-grained sedimentary structure logging data, including collection, process...

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Abstract

The invention discloses a method for describing a coal-measures fine-grained sediment structure. The method comprises fine-grained sediment structure log data acquisition and processing, fine-grained sediment structure type well-logging recognition and digitization, fine-grained structure interface, cycle, classification description and depicting and mapping, fine-grained sediment structure classification and quantitative depiction and coal-measures fine-grained structure module and sediment structure classification system establishment. The method provides basis for sedimentation prototype basin recovery, organic matter-rich shale enrichment region evaluation, favorable reservoir stratum prediction and favorable target region optimization.

Description

technical field [0001] The invention relates to a method for describing the fine-grained sedimentary structure of coal series, which belongs to the field of geological exploration and development. Background technique [0002] The type of coal-measure fine-grained sedimentary rock is mainly related to the overall background conditions of coal-measure formation. Coal-measure fine-grained deposits are mostly closely related to the transitional background and hydrodynamic conditions of "water area-terrigenous source area", so the types of coal-measure fine-grained deposits have their particularity and complexity. Through the detailed observation and description of traditional cores and outcrops, high-power microscope observation, scanning electron microscopy and field emission electron microscopy, and fine-grained sediment microbial test and analysis, the composition characteristics of coal-measure fine-grained sedimentary rocks can be described in detail. [0003] Coal-measur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V9/00
Inventor 李增学李莹刘海燕王东东王平丽吕大炜刘莹
Owner SHANDONG UNIV OF SCI & TECH
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