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A method for identification of main transition planes between delta construction and destruction

An identification method and delta technology, applied in the field of geological exploration, to achieve the effects of easy judgment, solution to multi-solution problems, and easy conversion of surface positions

Active Publication Date: 2019-03-05
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Abstract
  • Description
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Problems solved by technology

[0010] The purpose of the present invention is to provide a method for identifying the main transition plane between delta construction and destruction, so as to solve the technical problems existing in the existing sedimentary datum

Method used

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  • A method for identification of main transition planes between delta construction and destruction
  • A method for identification of main transition planes between delta construction and destruction
  • A method for identification of main transition planes between delta construction and destruction

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Embodiment Construction

[0060] The following will be combined with Figure 1-9 The technical solutions of the present invention are clearly and completely described, and obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] The present invention will be further explained below in combination with specific embodiments.

[0062] in, figure 1 The flow chart of the identification method for the main transition surface of delta construction and destruction provided by the embodiment of the present invention; figure 2 Schematic diagram of the lithology identification mark structure for the main transition plane of delta construction and failure; image 3 The sandy map of the distributary channel beach and bar of Well Wang 18, whi...

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Abstract

The invention provides a method for identifying a main transform plane of delta construction and destruction. Identification is carried out from perspectives of lithology, sand body types, sedimentary tectonics, paleontology, and geophysics and a precise position of a key transform plane of delta construction and destruction is determined. The method is characterized in that a main transform plane of delta construction and destruction is put forward firstly; and the sedimentary period of the delta is divided into a delta construction period and a delta destruction period based on the delta sedimentary effect for the first time. On the basis of the core, welllogging, logging, and seismic data, precision improvement is realized step by step; the position of the main transform plane of delta construction and destruction is determined comprehensively; and the data reliability and precision are high.

Description

technical field [0001] The invention relates to the technical field of geological exploration, in particular to a method for identifying the main conversion surface of delta construction and destruction. Background technique [0002] Sedimentary datum is the key interface commonly used at present, and its identification method generally needs to combine seismic and logging data. ①Use of seismic data: on the basis of correctly identifying and distinguishing basin-margin onlap, shore-shore onlap and underwater onlap on the seismic section, after a series of corrections such as differential settlement, decompaction and stratum denudation restoration, the reflection benchmark can be obtained ② Utilizing well logging data: on the basis of identifying the Milankovitch cycle through spectral analysis of the logging curves, the accommodating space reflecting the change of datum level can be compiled by using the corrected Fisher diagram method Curve. Sedimentary datums are general...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 张元福张娜高勇姜在兴
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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