Anti-freezing process for blowout-preventing pipe and cable matched with water injection well test

A technology of blowout preventer and water injection well, which is applied in the directions of cable installation, measurement, electrical components, etc., can solve problems such as cable freezing, and achieve the effect of ensuring safety, light weight and simple structure

Inactive Publication Date: 2012-01-04
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the cable freezes and the blowout preventer pipe freezes and blocks easily during the winter test construction of the water injection well in the oil field, the present invention

Method used

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  • Anti-freezing process for blowout-preventing pipe and cable matched with water injection well test
  • Anti-freezing process for blowout-preventing pipe and cable matched with water injection well test

Examples

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Example Embodiment

[0012] The present invention will be further described in conjunction with the accompanying drawings: the present invention is realized by the following devices: blowout preventer 1, integrated coil 2, cable 3, multi-core wire 4, heating power supply 5, generator 6, cable deicing The device 7 and the cable car 8, in which the integrated coil 2 surrounds the blowout prevention pipe 1, the integrated coil 2 and the output end of the heating power source 5 are connected by a multi-core wire 4, and the input end of the heating power source 5 is connected to the generator 6 , The cable ice deicing device 7 is fixed in the cable car 8 where the cable 3 is retracted; the present invention is implemented through the following steps:

[0013] a. First, the heating power supply 5 converts the direct current provided by the generator 6 into high-frequency current, and then supplies it to the integrated coil 2. The integrated coil 2 and the blowout preventer 1 form an electromagnetic inductio...

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Abstract

The invention relates to the technical field of oil field water well operation, and in particular relates to an anti-freezing process for a blowout-preventing pipe and a cable matched with an oil field water injection well test. The anti-freezing process is designed for solving the problems of cable icing and blowout-preventing pipe freezing and blockage happening easily in an oil field water injection well during winter testing construction. The anti-freezing process mainly adopts a blowout-preventing pipe 1, an integrative coil 2, a cable 3, a multi-core wire 4, a heating power supply 5, a generator 6, a cable deicer 7 and a cable car 8, and is used for preventing freeze and defrosting of the blowout-preventing pipe 1 and the cable 3 matched with the water injection well test. The anti-freezing process is used in the oil field water well operation, and has the advantages of deicing the cable at low cost efficiently and quickly, preventing freeze and defrosting the blowout-preventing pipe and the like.

Description

Technical field: [0001] The invention relates to the technical field of oilfield water well operation, and belongs to a technique for testing a blowout preventer and a cable antifreeze for an oilfield water injection well. Background technique: [0002] At present, when oilfield water injection wells are tested and constructed in winter, the problems of cable freezing and nozzle pipe freezing and blockage are prone to occur. The method of overflowing the nozzle pipe is mainly adopted on site. Using this method, after a long period of application, it is found that there are several problems in the following aspects: firstly, the overflow has a great impact on the environment, which is easy to pollute the environment and is not conducive to environmental protection; secondly, it affects the safety of the test construction of the on-site operators . Because, during the test construction in winter, the overflow released from the lubricator is easy to condense into ice quickly, ...

Claims

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Application Information

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IPC IPC(8): E21B33/03E21B47/01E21B49/00H02G7/16
Inventor 杨野周万富张书进贾德利马强朱振坤赵明鑫
Owner PETROCHINA CO LTD
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