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Fluid identification method and device

A fluid identification and fluid type technology, applied in seismic signal processing, seismology for logging records, etc., can solve the problem of high fluid complexity, and achieve the effect of simple acquisition process, reduced complexity, and low identification complexity

Active Publication Date: 2022-06-03
PETROCHINA CO LTD
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Problems solved by technology

[0005] The application provides a fluid identification method and device, which can solve the problem of high complexity in identifying fluids in reservoirs

Method used

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  • Fluid identification method and device
  • Fluid identification method and device

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Embodiment Construction

[0044] In order to make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0045] The formation of an oil and gas field may include multiple reservoirs, and each reservoir may cover multiple areas where oil and gas are stored. In the process of oil and gas field development, it is necessary to determine the type of fluid in the reservoir according to the geological characteristics of the reservoir (such as water saturation or rock chloride salt content, etc.), and after determining that the fluid in the reservoir is not water, oil and gas mining. When the type of fluid in the reservoir is determined by water saturation, the water saturation of the reservoir needs to be determined based on the rock samples in the reservoir, and the integrity of the rock samples taken from the reservoir needs to be guaranteed; Th...

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Abstract

The application discloses a fluid identification method and device, belonging to the field of oil and gas field exploitation. The method includes: obtaining target parameters in the area where the target well is located in the reservoir, the target parameters including: porosity, rock density, formation water salinity, rock chloride salt content and water saturation threshold; based on the target parameters, determining the reservoir The specified parameter value in the area where the target well is located in the layer, the specified parameter value includes at least one of the rock chloride salt content threshold and water saturation; based on the specified parameter value and the target parameter, determine the fluid type in the area where the target well is located in the reservoir . The present application addresses the relatively high complexity of identifying fluids in reservoirs. This application is used to identify fluid types in a reservoir.

Description

technical field [0001] The present application relates to the field of oil and gas field exploitation, and in particular, to a fluid identification method and device. Background technique [0002] Reservoir refers to a rock formation with interconnected pores and capable of storing and infiltrating oil and gas in the interconnected pores. At present, in the process of oil and gas field development, it is usually necessary to identify the fluid in the reservoir. The fluid in the reservoir includes water, oil, and natural gas. After determining that the fluid in the reservoir is not water, oil and gas production can be carried out. [0003] Since the fluid in the reservoir is different, the geological properties of the reservoir are also different, so the type of the fluid in the reservoir can be determined according to the geological properties of the reservoir. For example, the type of fluid in the reservoir can be determined according to the water saturation of the reservo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30G01V1/40
CPCG01V1/30G01V1/40
Inventor 谢冰赵路子赖强王跃祥赵艾琳肖柏夷
Owner PETROCHINA CO LTD
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