Environmental-friendly cofferdam on working site

Abstract

The invention relates to an environmental-friendly cofferdam on a working site. According to the technical scheme, a sucker rod ship-type tank is formed in a sucker rod placing area, four sucker rod fixing brackets are welded into the sucker rod ship-type tank and arranged at equal intervals, sucker rods are placed on the sucker rod fixing brackets, a sucker rod sewage collection groove is formedin the end head in the sucker rod ship-type tank, four oil pipe ship-type tanks are formed in an oil pipe placing area, the adjacent oil pipe ship-type tanks are connected through a buckle plate, fouroil pipe adjustable fixing brackets are welded into the oil pipe ship-type tanks and arranged at equal intervals, and oil pipe sewage collection grooves are formed in the end heads in the oil pipe ship-type tanks. The environmental-friendly cofferdam has the beneficial effects that the advantages of the ship-type cofferdam that steel materials are used for welding, firmness, sealing and reusability are achieved, the use amount of an anti-seepage membrane is decreased from the source, the generation of secondary pollution are reduced from the source, and the self-flowing and centralized recovery of outlet liquid in a shaft are convenient.

Description

technical field [0001] The invention relates to a protection device for downhole workover operations in an oil field, in particular to an environmental protection cofferdam at the operation site. Background technique [0002] During downhole workover operations in oilfields, the oil pipes and sucker rods will be taken out of the wells to bring out part of the dirty oil and water in the wells. If they are not recovered in time and reasonable environmental protection measures are taken, the construction site will be polluted. At present, plastic anti-fouling cloth + metal triangular cofferdams are used to set up tubing placement areas and sucker rod placement areas on the job site as anti-fouling measures to prevent waste liquid and oil sludge from landing and spilling into the well site. However, the current plastic antifouling cloth is easy to be damaged during use, resulting in the leakage of the wellbore output fluid, which has a large environmental risk. After the damage,...

AI Technical Summary

Problems solved by technology

However, the current plastic antifouling cloth is easy to be damaged during use, resulting in the leakage of the wellbore output fluid, which has a large environmental risk. After the damage, it will cause the leakage of crude oil and sewage in the cofferdam, polluting the soil on the well site, and it is a one-time use product. And it is non-degradable. After the operation site is relocated, the post-processing is difficult, and it is easy to cause secondary pollution. It is necessary to carry out pollution control on the well site. It is difficult to dispose of the anti-fouling cloth after it is collected, and the cost is high.

Images