An oil-water well circulation cleaning system

Abstract

The invention relates to an oil-water well washing system, in particular to an oil-water well circulating cleaning system. According to the technical schemes of the oil-water well circulating cleaning system, the oil-water well circulating cleaning system comprises a bearing tool, a water filter system, a heating system and a circulating system. The water filter system and the heating system are fixed onto the bearing tool and connected through the circulating system to achieve water filtering and liquid heating for well circulating washing. The oil-water well circulating cleaning system has the beneficial effects that the efficient oil-water well washing device is novel well washing technological equipment, and an efficient first-stage water filter sub tank and a second-stage water filter sub tank are designed and developed to be combined into a sub-master filter tank structure; a tower spring type efficient energy-saving furnace is designed for efficient heating, and an automatic control system and a vehicle-mounted self-unloading hydraulic system are arranged so that a vehicle-mounted tower type heating tank can be conveniently unloaded; a self-propelled moving and dragging platform is arranged, and down-hole sundries and floating oil in well washing operation can be recovered through an oil drainage plate designed on the first-stage water filter sub tank; and the oil-water well circulating cleaning system is carried to a site through a special vehicle.

Description

technical field The invention relates to an oil-water well cleaning system, in particular to an oil-water well circulating cleaning system. Background technique In the oil industry, pipe string blockage in water injection wells and wax precipitation in oil production wells are the most prominent problems that affect the high and stable production of oil wells. To clear the blockage in the wellbore of the water injection well and the wax deposits in the wellbore of the oil production well, it is necessary to carry out routine well cleaning and maintenance, which is an important part of the management of oil and water wells. Currently, oil and water well washouts are operated separately. Oil well cleaning is carried out by a combination of cement trucks and tank trucks. The main problems are: 1. The cost of well cleaning is high. The standard equipment for washing a well is 1 cement truck and 2 tank trucks, and the cost of 1 shift (8 hours) is 4,000 yuan. 2. The workload o...

AI Technical Summary

Problems solved by technology

Oil well flushing is carried out by a combination of cement trucks and tank trucks. The main problems are: 1. The cost of well flushing is high

2. The workload of well washing cannot be satisfied

3. The effect of well cleaning is not good. Ordinary well cleaning requires water temperature above 70 degrees. The water pulled by tank trucks is 50-60 degrees in summer and 40-50 degrees in winter. When it is pulled to the site, it will drop to about 10 degrees. , the well washing effect is very bad, and the special well has no effect at all

4. The combination of cement trucks and tank trucks does not have a filter device for cleaning and circulating the well on site. After the impurities in the water pulled by the tank truck are pumped into the wellbore, the pump efficiency will decrease, and even the well will lie down, resulting in huge economic losses.

The main problems are: 1. The pipeline entering the oil well causes the pressure of the low-pressure system to be high, resulting in the unstable operation of the export system

2. The displacement of the well flushing cannot meet the requirements, and the dirt in the well cannot be carried out by the discharge fluid, so the effect of well flushing cannot be achieved

3. The cost of well cleaning is high

4. It is difficult to clean the well flushing fluid

The well flushing fluid contains impurities, which need to be pulled to the dirty oil pool by tanker trucks to be unloaded, and the treatment cost is extremely high

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