A combined high-efficiency plugging removal system and plugging removal method
A combined and efficient technology, applied in the direction of earthwork drilling, wellbore/well components, cleaning equipment, etc., can solve the problems of loss, low efficiency, oil pipe fouling, etc., and achieve the effect of mild reaction and no pollution to the environment
Active Publication Date: 2020-11-24
中国石油天然气股份有限公司西南油气田分公司工程技术研究院 +1
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Problems solved by technology
The oil and gas production process will lead to fouling inside the tubing, resulting in a smaller inner diameter of the tubing and affecting oil and gas production
In severe cases, the entire oil pipeline cannot continue to produce gas
At present, mechanical scraping is mainly used to deal with the fouling in the oil pipe, but this treatment method is inefficient and easy to cause damage to the oil pipe, and once the oil pipe is damaged, it will cause greater losses
Method used
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Embodiment Construction
[0018] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0019] like figure 1 As shown, a combined high-efficiency plugging removal system and a plugging removal method thereof. The fouling in the oil pipe is dealt with by combining mechanical and chemical methods. The part of mechanical treatment is the flushing assembly installed in the oil pipe and the lifting assembly for lifting the flushing assembly, while the part of chemical treatment is the pumping system connected to the gas tree 2, which is used to pump the gas into the gas tree 2. Transport the plugging remover, and use the plugging remover to deal with the fouling in the oil pipe.
[0020] Specifically, the flushing assembly includes three parts, which are the upper joint 6 for connecting the lifting system, the impact pipe 7 for increasing the impact capacity of the...
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The invention relates to a combined type efficient blockage removing system and a blockage removing method thereof. Through impact vibration of a scouring assembly and the chemical action of a blockage removing agent on scale in an oil pipe, the scale in the oil pipe can be efficiently decomposed and scraped away, and therefore blockage formed by the scale in the oil pipe is removed. The blockageremoving system is simple in structure, and the blockage removing method is high in efficiency. The blockage removing agent is mild in reaction, no harmful substance is generated, the non-toxic, harmless and emission-free blockage removing purpose is achieved, no pollution is caused to the environment, no damage is caused to the oil pipe, and the whole blockage removing process is environmentallyfriendly and efficient.
Description
technical field [0001] The invention relates to the technical field of oil and gas well maintenance, in particular to a combined high-efficiency plugging removal system and plugging removal method. Background technique [0002] After a period of oil and gas extraction. The oil and gas production process will lead to fouling inside the tubing, resulting in a smaller inner diameter of the tubing and affecting oil and gas production. In severe cases, the entire oil pipeline cannot continue to produce gas. At present, mechanical scraping is mainly used to deal with the fouling in the oil pipe, but this treatment method is inefficient and easy to cause damage to the oil pipe, and once the oil pipe is damaged, it will cause greater losses. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art and provide a safe and efficient plugging removal system and method for removing fouling in oil pipes. [0004] The pu...
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IPC IPC(8): E21B37/00E21B37/02E21B37/06
CPCE21B37/00E21B37/02E21B37/06
Inventor 唐诗国陈学忠王学强陈满罗鑫杨永韬卿阳唐思洪马庭红余相君张勇王梓齐
Owner 中国石油天然气股份有限公司西南油气田分公司工程技术研究院