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Oil-gas source determination method and device

A method for determining oil and gas sources, applied in the field of oil and gas exploration, can solve problems such as omissions and inaccurate determination of oil and gas sources

Active Publication Date: 2017-07-21
PETROCHINA CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiments of the present application provide a method and device for determining oil and gas sources, so as to solve the technical problems of inaccurate and missing oil and gas sources existing in existing methods for determining oil and gas sources

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Embodiment Construction

[0055]In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0056] Considering the existing methods for determining the source of oil and gas, it is usually first to collect samples of crude oil, natural gas, and source rocks, and measure the biomarkers and carbon isotope characteristics of each sample, and then directly compare the oil and gas sources to determine the oil and gas sources. source. ...

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Abstract

An embodiment of the invention provides an oil-gas source determination method and device. The method includes the steps: acquiring hydrocarbon source rock samples and oil gas samples of an oil-gas field; acquiring kerogen according to the hydrocarbon source rock samples; dividing the kerogen into a plurality of groups, and performing gold tube heat simulation experiments on the kerogen according to different preset temperatures to obtain a plurality of groups of experimental result substrates; building a plurality of groups of geochemical characteristics of hydrocarbon source rock generated crude oil and the hydrocarbon source rock generated natural gas under different maturity degrees according to the experimental result substrates; acquiring geochemical parameter data of the oil gas samples; determining whether the hydrocarbon source rocks are oil-gas sources or not according to the geochemical characteristics of the hydrocarbon source rock generated crude oil and the hydrocarbon source rock generated natural gas under different maturity degrees and the geochemical parameter data of the oil gas samples. According to the scheme, the geochemical characteristics of the hydrocarbon source rocks under the different maturity degrees are built, and the method solves the technical problem of inaccurate identification of high-maturity oil-gas sources in an existing method.

Description

technical field [0001] The present application relates to the technical field of oil and gas exploration, in particular to a method and device for determining oil and gas sources. Background technique [0002] In the field of oil and gas exploration technology, accurately determining oil and gas sources plays an important role in restoring oil and gas accumulation evolution, selecting favorable zones, evaluating resource potential, and guiding oil and gas production. Usually, in order to determine the source of oil and gas, on the basis of comprehensive geological and geochemical data, effective comparison parameters or indicators are reasonably selected to analyze the genetic relationship between crude oil, natural gas and source rocks, and then this genetic relationship can be used to guide the determination oil and gas source. [0003] Specifically, the existing method for determining the source of oil and gas is generally to collect samples of crude oil, natural gas and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/22G01N33/24G01N30/02
CPCG01N30/02G01N33/225G01N33/24
Inventor 陈斐然朱光有米敬奎
Owner PETROCHINA CO LTD
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