Sectional type anti-blocking device for oil field

Abstract

The invention discloses a sectional type anti-blocking device for an oil field. The sectional type anti-blocking device comprises a well wall and is characterized in that a rotating center is connected to an internal bearing of the well wall, wherein a detection processing mechanism is arranged on one side of the rotating center and comprises a detection block; a spraying head is arranged at one end of the detection block; a fixing rod is arranged on one side of the detection block; a short rod is elastically connected to the other end of the fixing rod; a reset spring is arranged at the bearing connecting position of the short rod and the fixing rod; a deformation valve is elastically connected to the lower side of the fixing rod; a deformation ball is fixedly connected to one side of the fixing rod; a liquid outlet is fixedly connected to the lower side of the deformation ball; the middle of the deformation ball makes contact with the liquid outlet; a liquid storage bin is connected to a pipeline at the lower end of the liquid outlet; a pressing plate is connected into the liquid storage bin in a sliding manner; and drilling fluid is arranged at the lower end of the pressing plate. The sectional type anti-blocking device has the beneficial effects of being low in energy consumption and capable of treating well wall cracking.

Description

technical field [0001] The invention relates to the technical field of anti-clogging, in particular to a segmented anti-clogging device for oil fields. Background technique [0002] Oil well plugging is one of the manifestations of oil and gas layer damage. During various operations such as drilling, well completion, oil production, production stimulation, well workover, etc., when there is any obstacle in the production or injection ability of the fluid (including liquid flow, gas flow or multiphase flow) in the reservoir near the wellbore, the oil and gas Layers of damage will follow. Whether it is drilling, oil production, water injection development, or in various operations of enhanced oil recovery, the problem of oil well plugging is ubiquitous. [0003] Oilfield clogging is mostly caused by oil well waxing. Most of the existing technologies for treating oil well waxing are to deal with the waxing by washing the well after the oilfield is clogged, which requires a lo...

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Problems solved by technology

[0003] Oilfield clogging is mostly caused by oil well waxing. Most of the existing technologies for treating oil well waxing are to deal with the waxing by washing the well after the oilfield is clogged, which requires a lot of energy. The waxing can also be removed by chemicals and heating. , and in existing oil wells, it is easy to cause cracks on the well wall due to pressure, which will lead to soil infiltration and blockage of the oil well. The cracks can be repaired with drilling fluid. Drilling fluid is a viscous substance and can be mixed with mud to form a protective wall to avoid The mud on the well wall falls and blocks the oil well. There is no treatment device for well wall cracks in the prior art

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