A method and a device for determining a temperature field of a hollow sucker rod hot water injection circulation wellbore

A hollow sucker rod and wellbore temperature technology, applied in the field of heavy oil lifting, can solve the problem that the key parameters of the hollow rod hot water circulation viscosity reduction process cannot be accurately predicted

Active Publication Date: 2018-12-18
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Through searching a large number of documents and materials, there is no similar calculation method at present, so it is impossible to accurately predict the key parameters of the hollow rod hot water circulation viscosity reduction process technology

Method used

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  • A method and a device for determining a temperature field of a hollow sucker rod hot water injection circulation wellbore
  • A method and a device for determining a temperature field of a hollow sucker rod hot water injection circulation wellbore
  • A method and a device for determining a temperature field of a hollow sucker rod hot water injection circulation wellbore

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[0107] 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.

[0108] The specific implementation manners of the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0109] refer to figure 2 As shown, this embodiment provides a method for determining the temperature distribution of the hollow sucker rod injection hot water...

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Abstract

The invention provides a method and a device for determining a temperature field of a hollow sucker rod hot water injection circulation wellbore. The method divides the wellbore into several sectionsand calculates the physical parameters of the corresponding sections. The temperature field distribution of hot water injection into the hollow sucker rod in the wellbore tubing is calculated by iterative method. The calculation method disclosed by the invention has good calculation stability and high calculation accuracy, and can be used for predicting the displacement and temperature of hot water mixed into the wellhead of the double-layer hollow sucker rod hot water circulating heating viscosity reduction process by the algorithm and the interpretation tool, thus achieving the purpose of viscosity reduction of the wellbore crude oil.

Description

technical field [0001] The invention belongs to the field of heavy oil lifting, and relates to a method and a device for determining the temperature field of a hollow sucker rod injection hot water circulation wellbore. Background technique [0002] With the continuous development of heavy oil blocks, the problem of high energy consumption caused by the large-scale application of electric heating wellbore viscosity reduction technology has become increasingly prominent, which has brought greater pressure on the production operation and cost control of oil production units. Hollow rod hot water circulation viscosity reduction technology has been gradually improved and developed in recent years, such as figure 1 As shown, the working principle of this technology is: hot water is continuously injected from the wellhead into the hollow rod, and the hot water flows along the hollow rod to the bottom of the tubing, where the oil and water are mixed at the bottom of the tubing, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/10
CPCG06F17/10
Inventor 马振龙华曲绍刚杨宝春王磊刘洪芹张成博宋阳徐大光郝亮张宇
Owner PETROCHINA CO LTD
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