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Method and device for acquiring gas-liquid ratio of fluid inclusion

An acquisition method and acquisition device technology, which are applied in the field of fluid inclusion gas-liquid ratio acquisition, can solve the problems of rough results, too much interference by human factors, and high experience requirements, and achieve a solution with fewer calculation steps, improved accuracy, and strong practicability. Effect

Pending Publication Date: 2021-05-21
PETROCHINA CO LTD
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Problems solved by technology

This method has certain advantages, such as simple method, fast speed, and high efficiency. It can not only estimate the gas-liquid ratio of oil-gas two-phase inclusions, but also estimate the gas-liquid ratio of gas-water two-phase inclusions, without being limited by fluorescence. , but this method has high requirements for experience, and the interference of human factors is too large, so the result is relatively rough

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  • Method and device for acquiring gas-liquid ratio of fluid inclusion
  • Method and device for acquiring gas-liquid ratio of fluid inclusion
  • Method and device for acquiring gas-liquid ratio of fluid inclusion

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the 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 making creative efforts belong to the scope of protection of this application.

[0047] In order to improve the accuracy, convenience and wide application of obtaining the gas-liquid ratio of inclusions, and further improve the accuracy of obtaining the maturity of the target hydrocarbon fluid, the embodiment of the present application provides a device for obtaining the gas-liquid ratio of fluid inclusions , the device may be a server or ...

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Abstract

The invention provides a method and a device for acquiring a gas-liquid ratio of a fluid inclusion. The method comprises the following steps: respectively acquiring display areas of a liquid phase part and a gas phase part in a micrograph of a target fluid inclusion in a target region by applying a Photoshop tool; obtainig the gas-liquid ratio of the target fluid inclusion corresponding to the microphotograph according to the area ratio corresponding to the microphotograph and the display area of the liquid phase part and the display area of the gas phase part, wherein the area ratio corresponding to the microphotograph is the ratio of the actual area to the amplified display area; and outputting the gas-liquid ratio of the target fluid inclusion corresponding to the micrograph, so as to determine the maturity of the target hydrocarbon fluid corresponding to the target fluid inclusion based on the gas-liquid ratio of the target fluid inclusion. The accuracy and convenience of obtaining the gas-liquid ratio of the inclusion can be improved, and then the accuracy of obtaining the maturity of the target hydrocarbon fluid is improved.

Description

technical field [0001] The present application relates to the technical field of geological exploration, in particular to a method and device for obtaining the gas-liquid ratio of fluid inclusions. Background technique [0002] In the field of oil and gas exploration, hydrocarbon inclusions and their associated brine inclusions can well record information such as paleo-pressure, paleo-temperature, and fluid composition during oil and gas charging, which can help restore the formation process of oil and gas reservoirs. At present, there are two mainstream methods for studying the gas-liquid ratio of inclusions: laser confocal method and visual estimation method. [0003] At present, the gas-liquid ratio calculation method with high precision is the laser confocal method. Through three-dimensional reconstruction of the fluorescent area of ​​the oil inclusions showing fluorescence, the volumes of the liquid and gaseous parts of the oil and gas inclusions are calculated, thereby...

Claims

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Application Information

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IPC IPC(8): G01N21/84G01B11/28G01B5/26
CPCG01N21/84G01B11/28G01B5/26G01N2021/8405
Inventor 吴海柳少波赵孟军张晋邓亚卓勤功鲁雪松于志超马行陟白东来张月
Owner PETROCHINA CO LTD
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