A method and device for determining physical properties of oilfield reservoirs

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: 2017-12-19
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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  • A method and device for determining physical properties of oilfield reservoirs
  • A method and device for determining physical properties of oilfield reservoirs
  • A method and device for determining physical properties of oilfield reservoirs

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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

Embodiments of the present application provide a method and device for determining physical characteristics of oilfield reservoirs. The method includes: using the shallow lateral resistivity of reservoir rocks in different periods to correct the neutron-gamma logging curves in the corresponding periods, and obtaining the corrected neutron-gamma logging curves in different periods; The corrected neutron gamma logging curves were calculated to obtain the corrected neutron gamma relative value curves in corresponding periods; mathematical regression was performed on the corrected neutron gamma relative value curves in different periods and the preset analysis values ​​in corresponding periods processing to determine the shale content of reservoirs in different periods. Using the technical solution provided by the embodiment of the application can accurately obtain the physical characteristics of the reservoir in different periods, which is conducive to the establishment of a geological model that is more in line with the actual situation, and accurate development and adjustment measures are proposed to achieve stable oil and water control and increase oil recovery. the goal of.

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 Patents(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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