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Wellhead electromagnetic heating device

A technology of electromagnetic heating device and electromagnetic coil, which is applied in the direction of isolation device, wellbore/well components, earthwork drilling and mining, etc. It can solve problems such as threats to the life safety of operators, object strikes, fires, etc., and achieve the effect of ensuring life safety

Inactive Publication Date: 2016-03-16
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the method of heating the heavy oil by baking the wellhead with an open flame may ignite the natural gas in the wellbore, resulting in a fire, which will threaten the life safety of the operator
In addition, if the operator does not operate the blowtorch properly, it may cause burns, object blows and other safety accidents

Method used

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  • Wellhead electromagnetic heating device
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Embodiment Construction

[0033] An embodiment of the present application provides a wellhead electromagnetic heating device.

[0034] 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.

[0035] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected...

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Abstract

The embodiment of the invention discloses a wellhead electromagnetic heating device which comprises a housing and an electromagnetic coil, wherein the housing comprises an inner shell, an outer shell, and a cavity with two opposite sides; the cavity is enclosed by the inner shell and the outer shell; both the inner shell and the outer shell are provided with two opposite sides which are an integrated structure; a distance between the two opposite sides of the inner shell is matched with the outer diameter of a packing box at a wellhead; the electromagnetic coil is arranged in the cavity; the electromagnetic coil is matched with the cavity; and after being electrified, the electromagnetic coil can generate magnetic fields for heating thickened oil in the packing box. According to the wellhead electromagnetic heating device provided by the embodiment of the invention, life safety of an operator can be guaranteed when the operator takes out the packing box at the wellhead.

Description

technical field [0001] The present application relates to the technical field of oil collection, in particular to a wellhead electromagnetic heating device. Background technique [0002] Oil production wellhead is the necessary channel for oil, natural gas and other gases to be extracted from the ground to the surface. Among them, the packing box set on the polished rod at the wellhead is an important part for controlling oil and gas blowout and leakage. When the packing inside the packing box is worn out and overturned, the packing box is not tightly sealed, and oil and gas will leak from the upper end of the packing box, causing pollution or even a blowout accident. Therefore, it is important to replace the packing in time to avoid oil and gas leakage. Important work that oil production management must carry out. However, every autumn and winter season, the temperature drops, the fluidity of heavy oil and ultra-heavy oil is poor, and the heavy oil and packing in the pack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B36/04
CPCE21B36/04
Inventor 包波尤义仁黄玉晶闫军刘强刘兆鹏单长城郑艳梅于登科李枫王宇新郭飞顾彦欣陆洋吴万里王宁
Owner PETROCHINA CO LTD
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