Identification method of oil source and charging process of complex crude oil

A crude oil and oil source technology, applied in the field of oil source and charging process identification, can solve the problem of oil source identification in complex crude oil charging process, difficult to effectively reflect the oil and gas charging period, etc.

Active Publication Date: 2020-07-14
NANJING UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, since inclusions are easily affected by factors such as structural disturbances, fluid activities, and testing processes, it is difficult to effectively reflect the charging stages of oil and gas.
It can be seen that traditional research methods cannot well solve the problems of complex crude oil charging process and oil source identification.

Method used

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  • Identification method of oil source and charging process of complex crude oil
  • Identification method of oil source and charging process of complex crude oil
  • Identification method of oil source and charging process of complex crude oil

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some 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.

[0029] The embodiment of the present invention provides a method for identifying the oil source and filling process of complex crude oil, including:

[0030] S1: Take the reservoir samples in the research area, and observe the reservoir samples with a microscope.

[0031] In this step, after making slices of the reservoir samples, microscopically observe the cements of the reservoir samples, analyze the morphology characteristics of the cements of the reservoir samples, select the cements of the reservoir samples with a ring-shaped ...

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Abstract

The invention provides a method for judging oil sources and a charging process of complex crude oil, relates to the field of petroleum geology, can judge the oil sources, a charging period and a charging process of the complex crude oil according to cement of a reservoir and trace element content characteristics of a structure layer and has great significance in reservoir forming analysis. The method for judging the oil sources and the charging process of the complex crude oil comprises the following steps: a reservoir sample from a research area is taken and microscopically examined; a hydrocarbonaceous cement extract of the reservoir sample is analyzed with an organic geochemical technology; trace elements of the cement of the reservoir sample are tested and analyzed, a trace element distribution diagram for the cement of the reservoir sample is drawn, and the oil sources are distinguished and the crude oil charging process is determined on the basis of composition and change of the trace elements of a zonal pattern structure layer of the cement of the reservoir sample.

Description

technical field [0001] The invention relates to the field of petroleum geology, in particular to a method for identifying the oil source and charging process of complex crude oil. Background technique [0002] Oil source refers to the source of crude oil, and its affinity is determined by comparing the geochemical characteristics of crude oil with potential source rocks; the charging process of crude oil refers to the intermediate process from hydrocarbon expulsion to accumulation. The injection stage is a key link in the study of the crude oil charging process; the crude oil charging process and oil source identification are important components of the basic theory of petroleum geology. [0003] The charging process of crude oil and the identification of oil sources have always been hot spots in the field of petroleum geology, especially the study of crude oil with complex oil sources is a major research problem in this field. Throughout the world's oil exploration field, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/223G01N1/28
CPCG01N1/2806G01N23/223
Inventor 曹剑张景坤王熠付欢周妮马万云
Owner NANJING UNIV
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