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Method and apparatus for determining oil field reservoir physical characteristics

A reservoir physical property and reservoir technology, which is applied in the field of determining the physical property characteristics of oilfield reservoirs, can solve problems such as inability to accurately reflect the physical properties of underground reservoirs, and achieve the effect of improving recovery

Active Publication Date: 2015-12-02
PETROCHINA CO LTD
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Problems solved by technology

Therefore, it cannot accurately reflect the current physical properties of underground reservoirs.

Method used

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  • Method and apparatus for determining oil field reservoir physical characteristics
  • Method and apparatus for determining oil field reservoir physical characteristics
  • Method and apparatus for determining oil field reservoir physical characteristics

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Embodiment Construction

[0033] 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.

[0034] The specific implementation of the embodiment of the present application will be described in detail below with several specific examples.

[0035] The first embodiment of a method for determining physical properties of oilfield reservoirs in this application will be introduced below. combined with figure 1 , the example includes...

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Abstract

The invention provides a method and apparatus for determining oil field reservoir physical characteristics. The method comprises the following steps of respectively correcting neutron gamma logging curves in different periods by using the reservoir rock shallow lateral resistivity of the corresponding periods to acquire corrected neutron gamma logging curves in different periods; respectively calculating according to the corrected neutron gamma logging curves in different periods and acquiring corrected neutron gamma relative value curves of corresponding periods; performing mathematical regression respectively on the corrected neutron gamma relative value curves of corresponding periods and preset analytical values of corresponding periods, and determining the reservoir shale contents in different periods. By means of the provided technical scheme, reservoir physical characteristics of different periods can be accurately acquired. The setting of a geologic model better according with real conditions can be facilitated. Accurate exploitation adjusting measures can be proposed. The aims of oil stabilizing, water controlling and oil field recovery efficiency improving can be achieved.

Description

technical field [0001] The invention relates to the technical field of geophysical exploration, in particular to a method and a device for determining the physical characteristics of oilfield reservoirs. Background technique [0002] In the field of geophysical exploration technology, water injection development is one of the main ways to preserve formation energy. From the early stage to the middle stage and then to the later stage of oilfield water injection production, the degree of water flooding has been continuously improved, and the physical properties of the reservoir have also undergone obvious changes. Correspondingly, changes in reservoir physical properties will have a great impact on reservoir development measures. For this kind of old oilfield developed by water flooding, it is necessary to study the change law of reservoir physical properties in order to stabilize oil, control water and improve recovery. [0003] In the prior art, the logging data and experi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V11/00
Inventor 张丽娜温静李蔓谷团段永旭王欢邱晓娇史东坡王楠杨灿
Owner PETROCHINA CO LTD
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