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A method and device for calculating the viscosity of formation crude oil

A technology of formation density and crude oil, applied in calculation, design optimization/simulation, data processing application, etc., can solve the problem of low accuracy of crude oil viscosity, and achieve the effect of improving accuracy and high correlation coefficient

Active Publication Date: 2019-05-07
PETROCHINA CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, the accuracy of crude oil viscosity obtained by the above method in application is not high

Method used

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  • A method and device for calculating the viscosity of formation crude oil
  • A method and device for calculating the viscosity of formation crude oil
  • A method and device for calculating the viscosity of formation crude oil

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Embodiment Construction

[0060] Embodiments of the present application provide a method and device for calculating the viscosity of formation crude oil.

[0061] 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.

[0062] figure 1 It is a flow chart of an embodiment of a method for calculating the viscosity of formation crude oil in this application. Such as figure 1 As shown, the method for calculating the viscosity o...

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Abstract

The embodiment of the invention discloses a method and a device for calculating a stratum crude oil viscosity. The method comprises: acquiring crude oil samples at one or more first positions in an oil reservoir, and stratum information of the first positions; based on the stratum information, measuring stratum crude oil viscosities of the crude oil samples; acquiring an oil-water interface position of the oil reservoir; according to the oil-water interface position of the oil reservoir, calculating distances from the crude oil samples in the oil reservoir to the oil-water interface; calculating stratum deep resistivity curve feature values and stratum density logging curve feature values, which correspond to the crude oil samples; according to the stratum crude oil viscosities, the distances to the oil-water interface, the stratum deep resistivity curve feature values and the stratum density logging curve feature values, establishing a stratum crude oil viscosity model; according to the stratum crude oil viscosity model, calculating a crude oil viscosity at a position to be measured in the oil reservoir. According to the method and the device, accuracy of calculating the stratum crude oil viscosity can be improved.

Description

technical field [0001] The present application relates to the technical field of clastic rock reservoir development, in particular to a method and device for calculating the viscosity of formation crude oil. Background technique [0002] The viscosity of formation crude oil refers to the size of a characteristic that hinders relative flow inside crude oil under formation conditions, that is, under the conditions of formation temperature, formation pressure and a certain amount of dissolved natural gas. It is a measure of the fluidity of crude oil, the greater the viscosity value, the poorer the fluidity. The viscosity of formation crude oil is one of the main indicators for evaluating the physical properties of formation crude oil. It is an indispensable and important parameter for oilfield development, and has a great influence on the design and adjustment of development schemes, reservoir management, and downstream oil and gas storage and transportation. [0003] The exis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06Q50/02
CPCG06F30/20G06Q50/02
Inventor 韩如冰田昌炳何辉杜宜静李顺明蔚涛
Owner PETROCHINA CO LTD
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