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Oil field ultra-long sealed three-phase high-power heating device

A heating device and high-power technology, applied in the direction of heating element shape, production fluid, wellbore/well parts, etc., to achieve the effect of shortening service life, high service life and less environmental pollution

Inactive Publication Date: 2012-05-23
于光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an ultra-long sealed three-phase high-power heating device for oil fields, so as to solve the problem that domestic and foreign oil field oil production heating devices cannot be used in special environments such as narrow diameter, high temperature, high pressure, high humidity, liquid, and high corrosion, such as oil wells. Heating and gas injection mining, peat low-quality coal fields, coal field gas production mining with no mining value, etc.

Method used

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  • Oil field ultra-long sealed three-phase high-power heating device

Examples

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Effect test

Embodiment 1

[0042] Choose a three-phase magnesium oxide metal sheath super-long power cable of 1400 meters, a three-phase super-high-power heating tube with a length of 55 meters, a working voltage of 380V, a power of 55KW, and a Y connection. The three-phase ultra-high-power heating tube and the three-phase magnesium oxide metal sheathed ultra-long power cable are welded with high-temperature resistant and low-resistance metal materials, and are densely wrapped in magnesium oxide and the sheath to form an oilfield ultra-long sealed three-phase cable. Phase high-power heating device.

Embodiment 2

[0044] Choose a three-phase magnesium oxide metal sheath ultra-long power cable of 1000 meters, a three-phase ultra-high-power heating tube with a length of 68 meters, a working voltage of 380V, a power of 75KW, and a Y connection. The three-phase ultra-high-power heating tube and the three-phase magnesium oxide metal sheathed ultra-long power cable are welded with high-temperature resistant and low-resistance metal materials, and are densely wrapped in magnesium oxide and the sheath to form an oilfield ultra-long sealed three-phase cable. Phase high-power heating device.

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Abstract

The invention relates to the field of an ultra-long heating device, in particular to an oil field ultra-long sealed three-phase high-power heating device, which is provided with a heating metal conductor, magnesium oxide, a high-temperature-resistance metal conductor, a metal conductor and a metal sheath through mutual and special welding. The oil field ultra-long sealed three-phase high-power heating device is widely applied to oil well heating gas filling exploitation, peat, low-quality coal fields, gasification exploitation of coal fields without exploitation values and the like and comprises special environment temperature rise and heating. The blank of the oil field oil exploitation heating devices in China can be filled, and the oil yield is improved.

Description

technical field [0001] The invention relates to the field of heating devices, in particular to an ultra-long sealed three-phase high-power heating device for oil fields. Background technique [0002] At present, the regeneration of heavy oil fields, low-temperature oil fields, and depleted oil fields generally uses thermal oil recovery technology and thermochemical oil recovery technology. [0003] Thermal oil recovery is mainly to increase the temperature of the oil layer through some technological measures. If the oil well is heated at about 300°C, it needs to be heated by a large-tonnage oil-fired boiler. The high-temperature and high-pressure dry steam (320°C) is input from the ground through the pipeline. Large heat loss, power consumption and oil consumption, environmental pollution, huge equipment, difficult handling, large maintenance, labor and time-consuming, high cost, and poor economic benefits. It cannot be achieved by heating above 300°C and below 500°C. [0...

Claims

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Application Information

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IPC IPC(8): E21B43/24H05B3/42
Inventor 于光
Owner 于光