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Method and device for fitting volume and dynamic reserves of fracture-caves in carbonate reservoirs

A carbonate rock reservoir and dynamic reserve technology, applied in measurement devices, geophysical measurements, seismology, etc., can solve problems such as inapplicability to oil wells and poor dynamic reserve accuracy, and improve accuracy and fit. Effect

Active Publication Date: 2020-01-03
PETROCHINA CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, due to the different geological properties of different oil wells, this fixed fitting relationship may not be applicable to all oil wells, resulting in poor accuracy of the dynamic reserves determined according to the fitting relationship

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  • Method and device for fitting volume and dynamic reserves of fracture-caves in carbonate reservoirs
  • Method and device for fitting volume and dynamic reserves of fracture-caves in carbonate reservoirs
  • Method and device for fitting volume and dynamic reserves of fracture-caves in carbonate reservoirs

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0045] figure 1 It is a schematic diagram of the application scene of the carbonate reservoir fracture-cavity carving volume and dynamic reserve fitting method provided by the embodiment of the present invention. See figure 1 , including a plurality of sample oil wells, which are respectively recorded as oil well 1-oil well 10, and the 10 o...

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Abstract

The embodiment of the invention provides a carbonate rock reservoir facture carving volume and dynamic reserve fitting method and device. The method comprises steps: according to seismic data of multiple sample oil wells and a facture carving technology for wave impedance seismic inversion, the seismic carving volume of each sample oil well is acquired; the dynamic reserve of each sample oil wellis acquired; a layer series of a production layer of each sample oil well is determined; and according to the seismic carving volume and the dynamic reserve of a sample oil well corresponding to eachlayer series, a fitting relationship corresponding to each layer series is determined. Thus, the accuracy of the oil well dynamic reserve obtained and determined according to the fitting relationshipis impr4oved.

Description

technical field [0001] Embodiments of the present invention relate to oil extraction technology, and in particular to a method and device for fitting volume and dynamic reserves of fractures and caves in carbonate reservoirs. Background technique [0002] At present, before deploying an oil well, it is usually necessary to analyze the dynamic reserves of crude oil in the oil well, so as to accurately plan the well. [0003] In the prior art, seismic surveys are usually performed on the area where the oil well is located, and corresponding seismic data are obtained. The seismic data can include various acquisition parameters, such as coverage times, shot distances, Seismic carving is performed on the oil well with the obtained seismic data to obtain a seismic carving volume of the oil well, and the seismic carving volume may be a volume of underground fractures of the oil well. Then, the dynamic reserves of the oil well are determined according to the fitting relationship be...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28G01V1/30
CPCG01V1/28G01V1/306G01V2210/624
Inventor 李世银江杰谢恩关宝珠王彭张银涛赵龙飞
Owner PETROCHINA CO LTD
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