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

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, ...

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 provides a low-cost, safe and efficient fast cable deicing, and can make the blowout preventer Anti-freezing process of anti-freeze pipes and cables for water injection well testing with anti-freezing and thawing pipes

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