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Oil and gas detection method, device, equipment and medium for deep carbonate oil and gas reservoir

A carbonate rock, oil and gas detection technology, applied in the field of petroleum geophysical exploration, can solve the problems of time-consuming and low precision, and achieve the effect of improving detection efficiency, improving precision and reducing time-consuming

Pending Publication Date: 2021-11-26
PETROCHINA CO LTD
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Problems solved by technology

[0005] The embodiment of the present invention provides a method for detecting oil and gas in deep carbonate rock reservoirs to solve the technical problems of time-consuming and low precision in deep carbonate rock oil and gas detection in the prior art

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  • Oil and gas detection method, device, equipment and medium for deep carbonate oil and gas reservoir
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  • Oil and gas detection method, device, equipment and medium for deep carbonate oil and gas reservoir

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0033] In an embodiment of the present invention, a method for detecting oil and gas in deep carbonate oil and gas reservoirs is provided, such as figure 1 As shown, the method includes:

[0034] Step 102: Determine the number of azimuths according to the distribution characteristics of the main faults in the area to be measured and the seismic acquisition parameters;

[0035] Step 104: According to the number of azimuths, the seismic pre-stack gather data in the area to be measured is divided into azimuths, and the post-stack azimuth data bodies corresponding to multiple azimuths are obtained...

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Abstract

The embodiments of the invention provide an oil and gas detection method, device, equipment and medium for a deep carbonate oil and gas reservoir. The oil and gas detection method comprises the steps that the number of orientations is determined according to the main fault distribution characteristics and seismic acquisition parameters of a to-be-detected region; according to the number of the orientations, orientations are divided for seismic pre-stack gather data of the area to be measured, according to the seismic pre-stack gather data corresponding to multiple orientations, post-stack sub-orientation data volumes corresponding to the multiple orientations are obtained, and the multiple orientations comprise the orientation parallel to the main fault trend and the orientation perpendicular to the main fault trend; in the post-stack sub-orientation data volumes corresponding to the multiple orientation, the post-stack sub-orientation data volume with the minimum anisotropy is determined; and oil gas detection is carried out based on the determined post-stack sub-orientation data volume. According to the scheme of the oil and gas detection method, the data volume of oil gas detection is reduced, the time consumption of oil gas detection calculation and analysis is reduced, the detection efficiency is improved, the influence of anisotropy on oil gas detection is reduced, and the detection precision is improved.

Description

technical field [0001] The invention relates to the technical field of petroleum geophysical exploration, in particular to a method, device, equipment and medium for detecting oil and gas in deep carbonate rock oil and gas reservoirs. Background technique [0002] In recent years, with the major breakthroughs in deep carbonate oil and gas exploration in many basins in the central and western regions of China, deep carbonate oil and gas reservoirs have become one of the important exploration fields for future oil and gas production increase and storage in China. Foreign scholars define deep oil and gas as oil and gas resources buried below 4,000 meters, while domestic scholars mostly define oil and gas reservoirs greater than 4,500 meters as deep oil and gas reservoirs. Deep carbonate oil and gas reservoirs are characterized by large reserves and high production, but the proven rate of deep oil and gas resources in my country is far lower than that of middle and shallow oil a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00G01V1/30G01V1/28
CPCE21B47/00G01V1/306G01V1/307G01V1/28Y02A90/30
Inventor 王海龙李海亮闫国亮董雪华张巧凤
Owner PETROCHINA CO LTD
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