Oil and gas well heat tracing method and system

A technology for oil and gas wells and thermal methods, which is applied in earthwork drilling, geothermal energy power generation, wellbore/well components, etc. It can solve the problems of poor heat tracing effect, large heat, and slow heating speed of oil and gas to be traced, and reduce the Potential safety hazards, simple and safe operation, and the effect of improving heat utilization

Pending Publication Date: 2022-07-08
PETROCHINA CO LTD
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Problems solved by technology

[0005] In view of this, this application provides a heat tracing method and system for oil and gas wells to solve the problems of slow heating speed, loss of a large amount of heat, poor heat tracing effect and large safety hazards of the oil and gas to be heat traced, so as to realize the improvement of heat tracing. The effect and the purpose of reducing potential safety hazards

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  • Oil and gas well heat tracing method and system
  • Oil and gas well heat tracing method and system
  • Oil and gas well heat tracing method and system

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0034] Before further detailed description of the embodiments of the present application, the location terms involved in the embodiments of the present application are only used to clearly describe the oil and gas well heat tracing methods and systems involved in the embodiments of the present application, and do not limit the present application. Significance of the scope of application for protection. Unless otherwise defined, all te...

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Abstract

The invention discloses an oil and gas well heat tracing method and system, and belongs to the technical field of oil extraction. According to the oil and gas well heat tracing method and system, the heat tracing medium is provided for the oil and gas well to be subjected to heat tracing through the heat source well with the high water content and the high liquid yield, the heat tracing medium produced by the heat source well is conveyed through the heat tracing pipeline, and heat lost by a heat tracing method of heating the heat tracing pipeline is greatly reduced; and the heat utilization rate of the heat tracing medium is greatly improved. When the heat tracing pipeline and the production side of the heat tracing oil-gas well are both connected with the liquid production pipeline, and the production gates of the heat source well and the oil-gas well to be heat-traced are opened, the mixture of the medium to be heat-traced and the oil-gas to be heat-traced flows out of the liquid production pipeline at the same time, so that the oil-gas to be heat-traced can directly use the heat of the heat tracing medium; and the heat tracing effect on to-be-traced oil gas is greatly improved. In addition, the oil and gas well heat tracing method is easy and safe to operate, and potential safety hazards of oil and gas field development are reduced.

Description

technical field [0001] The present application relates to the technical field of oil production, and in particular, to a method and system for heat tracing of oil and gas wells. Background technique [0002] With the continuous development of oil and gas fields, the formation energy gradually decreases, and the crude oil liquid production of a single well also gradually decreases, which leads to the low temperature in winter, and the oil wells with low liquid production are prone to crude oil condensation and freezing blockage. In addition, gas wells The pipeline is also very easy to frost, which leads to the reduction of the diameter of the pipeline, which increases the back pressure of the pipeline and causes the pipeline to burst under pressure. Therefore, in order to prevent the oil wells from condensing and freezing and the pipeline bursting of the gas wells in winter, the production liquid of the oil and gas wells can be heated by the heat tracing method and system. ...

Claims

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Application Information

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IPC IPC(8): E21B43/24
CPCE21B43/24Y02E10/10
Inventor 刘俊刚关野徐青松孙高超王晓明黄国梁何均黄海杨达开
Owner PETROCHINA CO LTD
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