Method for calculating basin burial history in batches based on de-compaction effect

A burial history and de-compaction technology, applied in the field of batch calculation of basin burial history based on de-compaction, to achieve the effect of easy acquisition, easy editing, and detailed map data.

Inactive Publication Date: 2020-05-12
BEIJING RES INST OF URANIUM GEOLOGY
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  • Application Information

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Problems solved by technology

In the process of stripping back analysis, the formation needs to be decompacted and corrected. Previous

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  • Method for calculating basin burial history in batches based on de-compaction effect
  • Method for calculating basin burial history in batches based on de-compaction effect
  • Method for calculating basin burial history in batches based on de-compaction effect

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Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0042] The present invention provides a method for calculating basin burial history in batches based on decompaction, and the method specifically includes the following steps:

[0043] Step (1) arrange the stratification and lithology data of multiple wells into a table according to the specified table format;

[0044] In step (1.1), sort out the drilling data in EXCEL, put the well number in the first column, the formation code in the second column, the depth of the bottom boundary of the lithology layer in the third column, and the lithology in the second column. four columns;

[0045] In step (1.2), the lithology is unified into four categories: mudstone, siltstone, sandstone, and conglomerate, and the numbers 1, 2, 3, and 4 are used as codes respectively. Carbonaceous mudstone and sandy mudstone in mud logging data are all Belongs to mud...

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Abstract

The invention belongs to the technical field of sedimentary basin structure research, and relates to a method for calculating basin burial history in batches based on a de-compaction effect. The method is simple in operation, accurate in calculation and high in efficiency. A large amount of drilling data in a basin can be effectively used as original data for burial history calculation; a large amount of drilling data in the basin can be processed in batches; the layering and lithological data of multiple wells are automatically recognized through programming; and the burial histories of all the wells are rapidly and accurately calculated. On the basis of the burial histories of the multiple wells; paleo-structure mapping is carried out in each period. The method has the characteristics ofdetailed mapping data and high selectivity. In addition, any well in the basin can be very conveniently and quickly positioned, so that the burial history of the single well can be drawn.

Description

technical field [0001] The invention belongs to the technical field of sedimentary basin structure research, and in particular relates to a method for calculating basin burial history in batches based on decompaction. Background technique [0002] The sedimentation of the basin is to restore and simulate the history of the basin's subsidence by quantitative calculation and analysis of the subsidence of the basin in each period, and to analyze and compare the location of the subsidence center and the subsidence rate of the basin in each period, so as to provide a reference for the study of the basin's structural paleogeomorphology. [0003] The analysis of the basin subsidence process usually adopts back stripping technology, that is, under the condition of keeping the thickness of the stratum skeleton unchanged, based on the stratum stratification in the basin, the stratum is stripped layer by layer according to the geological age from new to old, so as to restore the deposit...

Claims

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Application Information

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IPC IPC(8): G01V9/00G06F17/18
CPCG01V9/00G06F17/18
Inventor 刘持恒刘武生史清平张文东张梓楠
Owner BEIJING RES INST OF URANIUM GEOLOGY
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