Eccentric wear-preventing tool for pump-connecting rod
A technology for anti-eccentric wear and tools, which is applied to drill pipes, drilling equipment, earthwork drilling and production, etc. It can solve problems affecting crude oil production, damage to oil well pumps, and environmental pollution, so as to reduce high-intensity labor and production costs, reduce The effect of releasing eccentric wear of steps and reducing environmental pollution
Active Publication Date: 2015-12-09
LIAONING XINHUA INSTR CO LTD
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Problems solved by technology
As the sucker rod will be bent and deformed during operation, the pump barrel of the oil well pump will be worn and the strength of the connection between the oil well pump and the oil pipe will be reduced, which will cause the oil well pump to be damaged early, resulting in increased operating costs in advance, especially when the blowout preventer is assembled in the pump barrel , the end of the pump barrel is connected to the sealing working cylinder of the blowout preventer disconnector, and the sucker rod bends and deforms and wears the release step of the sealing working cylinder of the blowout preventer disconnector, which will cause the disconnector not to be disengaged normally, affecting crude oil production, and Can not prevent blowout during secondary operations, pollute the environment, and increase production costs
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[0009] See Figure 1-3 , the specific structure is as follows: the anti-eccentric wear tool 7 is a tubular body, and the two ends are provided with connecting external threads, and the inner wall of the tubular body is provided with two symmetrical inner tapered holes with a taper of 10°-20°. The junction of the inner tapered holes is connected by a transitional arc 10, the transitional arc is the small hole end of the two symmetrical inner tapered holes, and the large hole ends of the two symmetrical inner tapered holes connect to the equal inner diameter sections 13 at both ends.
[0010] The pump barrel 1 is threadedly connected to the sealing working cylinder 5 of the blowout preventer disconnector, and the anti-eccentric wear tool 7 is connected between the sealing working cylinder 5 of the blowout preventer disconnector 5 and the oil pipe 9 through couplings 6 and 8 . figure 1 , 2 shows the sucker rod 4, the blowout preventer 2 and the docking claw 3 in the existing str...
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An oil well pump wandering-type anti-deviation grinding device is characterized in that the oil well pump wandering-type anti-deviation grinding device is provided with a cylinder-shaped lower sleeve; the inner wall of the lower sleeve is provided with a lower boss; a centering device is mounted in the the lower sleeve; a lower end of the centering device is clamped on the lower boss in the lower sleeve; an upper portion of an inner hole of the lower sleeve is connected an upper sleeve through a thread; a lower end of the upper sleeve is abutted against an upper end of the centering device to fix the centering device inside; the centering device is designed to penetrate through a center hole of an oil well rod; and a plurality of spiral grooves are opened on the inner wall of the center hole. According to the invention, deviation grinding between the oil well rod of the oil well pump and a pump mouth is prevented; the problems that the oil well rod is broken off and a connecting-tripping device below the pump can not be used normally are avoided, thus the service life of the oil well pump is prolonged; and the oil recovery cost is reduced.
Description
technical field [0001] The invention relates to a component of oil production equipment, in particular to a tool for preventing partial wear of a pump rod. Background technique [0002] At present, oil production operations in oil fields mainly use oil well pumps and screw pumps. As the sucker rod will be bent and deformed during operation, the pump barrel of the oil well pump will be worn and the strength of the connection between the oil well pump and the oil pipe will be reduced, which will cause the oil well pump to be damaged early, resulting in increased operating costs in advance, especially when the blowout preventer is assembled in the pump barrel , the end of the pump barrel is connected to the sealing working cylinder of the blowout preventer disconnector, and the sucker rod bends and deforms and wears the release step of the sealing working cylinder of the blowout preventer disconnector, which will cause the disconnector not to be disengaged normally, affecting c...
Claims
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IPC IPC(8): E21B17/10
CPCE21B17/1071
Inventor 梁伟成梁闯
Owner LIAONING XINHUA INSTR CO LTD