Oil sludge prevention and real-time treatment system

Abstract

The invention relates to an oil sludge prevention and real-time treatment system. The system comprises a filter tank, a first blowdown pipe, a plurality of second blowdown pipes, a filtering device, ascraping device, a motor, two differential pressure gauges and an electric control cabinet and is characterized in that the first blowdown pipe is fixedly inserted into the filter tank; a cover platesleeves each of the top and the bottom of the first blowdown pipe, and the bottom cover plate is provided with a plurality of through holes allowing filtered sewage to pass; one ends of the second blowdown pipes are arranged on two sides of the first blowdown pipe at intervals in a staggered manner; the filtering device fixedly sleeves the first blowdown pipe; the scraping device sleeves the first blowdown pipe; the motor is fixedly arranged on the filter tank, and the output shaft of the motor extends into the filter tank to be fixedly connected with the scraping device; the differential pressure gauges are respectively arranged at a liquid inlet and a liquid outlet; the electric control cabinet is electrically connected with the motor and the differential pressure gauges. The oil sludgeprevention and real-time treatment system is widely applicable the field of offshore oilfield sewage treatment.

Description

technical field [0001] The invention relates to a sludge prevention and real-time treatment system, which belongs to the petroleum field. Background technique [0002] The enhanced oil recovery method of polymer flooding has become one of the important methods for increasing reserves and production in Bohai Oilfield. Compared with water flooding, the production fluid of polymer flooding contains residual anionic polymers, and the composition of the production fluid is complex and the viscosity increases. , which greatly increases the difficulty of processing. [0003] The traditional oilfield polymer flooding sewage treatment process generally includes three processes of inclined plate, air flotation, and dual-media filtration, and is equipped with necessary water treatment chemicals, such as cationic water purifiers. After the cationic water purifying agent reacts with negatively charged polymers and oils, it will flocculate to form viscous "sludge flocs", and the "sludge ...

AI Technical Summary

Problems solved by technology

After the cationic water purifying agent reacts with negatively charged polymers and oils, it will flocculate to form viscous "sludge flocs", and the "sludge flocs" will continue to accumulate in the equipment, and will gradually form excellent elasticity and stability. On the one hand, it affects the sewage treatment effect, on the other hand, the formed sludge is difficult to treat due to its high oil content, high viscosity, and difficult dehydration.

[0004] However, the existing offshore platform water treatment process does not include the process of real-time treatment of sludge flocs. The sludge flocs accumulate and age for a long time, and their performance becomes more and more stable. On the one hand, it will affect the sewage treatment effect. Due to the characteristics of high oil content, high viscosity and difficult dehydration, the sewage sludge is difficult to deal with

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