CN101927248A - Gas-liquid two phase jet flow heat insulation pipe cleaning device - Google Patents

Abstract

The invention provides a high-efficiency method for cleaning heat-insulating pipes in oil fields, that is, spraying and steaming the heat-insulating pipes in a closed and heat-preserving space, and finally scrubbing the outer wall of the pipes with a steel wire brush, thereby cleaning the oil stains on the inner and outer surfaces of the heat-insulating pipes clean. The system is also designed with a fixed-step moving mechanism to ensure that the step length of each movement of the heat-insulating pipe is constant, so as to ensure that the steam nozzle can be aimed at the heat-insulating pipe for spraying and improve the efficiency of spraying.

Description

Gas-liquid two-phase jet heat insulation pipe cleaning device

technical field

In the process of oil field thermal recovery, after a period of use, a thick layer of heavy oil, wax, and even scaling will accumulate on the pipe wall, and it needs to be taken out of the oil well for cleaning. At present, there is no suitable method for cleaning the insulation pipe, and a new and efficient cleaning method is urgently needed. The invention is a high-efficiency, energy-saving and environment-friendly heat insulation pipe for cleaning oil fields.

Background technique

At present, there are two ways to clean the insulation pipe:

1. High-pressure cleaning: Use a 30-40Mpa high-pressure pump to pump cold water to clean the inner and outer surfaces (mainly the outer surface) of the heat insulation pipe. The disadvantages are: the cleaning is not clean and cannot meet the requirements of users, and the sewage splashes and flows all over the floor, wasting water and polluting the environment.

2. Boiling in hot water: put the insulation tube into the hot water pool and boil for a period of time, then remove it. The disadvantage is: after cleaning several batches of heat insulation pipes, the water in the pool is very dirty, and the bottom of the pool is full of sludge and weeds, which cannot be cleaned, and even the heat insulation pipes cannot be fished up, so it is impossible to guarantee that each batch of heat insulation pipes can be cleaned ; The heat of water in the pool in winter is dissipated seriously, wasting a large amount of thermal energy.

Contents of the invention

In order to overcome the deficiencies of the above methods, the object of the present invention is to propose a method with high efficiency, energy saving and environmental protection for cleaning oil field insulation pipes.

The technical scheme of the present invention is: in a closed and heat-preserving space, spray the inner surface of the heat-insulating pipe with steam, and at the same time wash the outer surface of the heat-insulating pipe with high-temperature steam in the room, and finally use a wire brush to scrub the outer surface, thereby Clean the oil stains on the inner and outer surfaces of the pipe. The system is also designed with a fixed-step moving mechanism to ensure that the step length of each movement of the heat-insulating pipe is constant, so as to ensure that the steam nozzle can be aimed at the heat-insulating pipe for spraying and improve the efficiency of spraying.

Description of drawings

Accompanying drawing 1 is the structural representation of the present invention represented with three views.

Detailed ways

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

1 is the steam pipeline, and many steam nozzles 2 are installed along the pipeline; the heat insulation pipe 3 is driven by the rolling chain 5, and rolls down along the guide rod 6, and the chain controls the rolling step of the heat insulation pipe to ensure the position of the pipe It can be aligned with the nozzle 2; the whole process is carried out in the heat preservation room, which can effectively prevent heat loss and make full use of heat. The waste water after flushing flows into the sewage pool 7 in a concentrated way to ensure that the environment is not polluted, and the waste oil can also be recycled in a concentrated manner.

Claims (1)

1. one kind is used to clean the device of oil field with instlated tubular, it is characterized in that: in the space 4 of a sealing insulation, steam pipe line 1 and a plurality of nozzle 2 are installed, rolling guide rod 6, instlated tubular roll on guide rod 6; When instlated tubular 3 when guide rod 6 rolls downwards, the step-length that rolled by chain 5 controls guarantees that the position of instlated tubular can be aimed at nozzle; High-temperature steam is as the medium that cleans instlated tubular, and cleaning efficiency height, quality are good; Sewage after the cleaning is concentrated and to be flow in the cesspool 7, guarantees free from environmental pollutionly, and can also recycle excessive fuel consumption.

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