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A mechanical strong torsion plunger rotator

A rotator, torsion type technology, applied in the field of mechanical strong torsion plunger rotator, can solve the problem of not being able to meet the anti-eccentric wear of the sucker rod string, achieve the effect of compact structure, reduce pump jamming, and prolong the maintenance-free period

Active Publication Date: 2015-09-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the actual application effect of the sucker rod rotator, its effect on the oil well with the suspension point load below 80kN and the maximum well deviation of the well section where the sucker rod string is located is not more than 30° is more obvious. Rod rotators cannot meet the needs of anti-eccentric wear of sucker rod strings in vertical wells with a suspension point load of more than 80kN or deviated wells with a well deviation of more than 30° within the pump depth range

Method used

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  • A mechanical strong torsion plunger rotator
  • A mechanical strong torsion plunger rotator
  • A mechanical strong torsion plunger rotator

Examples

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Embodiment Construction

[0036] The example of the present invention is a device installed on the mechanical oil production rod string of the rod pump in the pumping well, which is used for the anti-eccentric wear of the rod string, and the tension-compression alternating force of the rod string in the up and down strokes along the straight line in the opposite direction, The purely mechanical mechanism is used to convert the one-way circular force that forces the rotating body to perform directional rotation.

[0037] figure 1 Shown is a planar cross-sectional view of a mechanical strong torsion plunger rotator according to an embodiment of the present invention. The mechanical strong torsion plunger rotator includes a rotating body 1, a driving part 2, a slider pin 3, a spring washer 4-1, a spring washer 4-2, a spring washer 4-3, a spring support piece 5, and a lower chamber Chamber spring 6, upper chamber spring 7, buckle nut 8, connector 9 and collar 10. Except the slider pin 3, all other compon...

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Abstract

The invention provides a mechanical forced-twisting plunger rotator comprising a rotor, drive members and slider pins. The rotor coaxially fits the drive members. The rotor comprises rail notches. The slider pins are fixed on the drive members and can slide in the rail notches of the rotor. When reciprocating axially with the drive members, the slider pins drive the rotor to rotate in the peripheral direction perpendicular to the axial direction. The mechanical forced-twisting plunger rotator is highly universal and adaptable for use in oil pipes of 27 / 8 inches and above, and allows a plunger and a slide rod thereof in various types of universal or specific oil pumps operating in deep wells, inclined shaft sections and even horizontal sections of horizontal wells to rotate together directionally; accordingly, eccentric wear of the slide rod and the plunger is prevented, the service lives of the oil pumps are prolonged, and the number of failures such as pump holddown, pump breakage, pump shedding and pump leakage is reduced.

Description

technical field [0001] The invention belongs to the technical field of anti-eccentric wear of rod pumps in pumping wells in the petroleum industry, and in particular relates to a mechanical strong torsion plunger rotator with the function of preventing the eccentric wear of the oil pump plunger or the lower sucker rod string . Background technique [0002] During the working process of the pumping unit, the whole sucker rod string is always subjected to tension from bottom to top during the upstroke. The end of the rod string, that is, the plunger of the oil well pump, bears the least tension, and the top of the rod string, that is, the suspension point of the polished rod at the wellhead, bears the largest tension. . During the downstroke, due to the comprehensive effects of friction force, buoyancy force, plunger friction force, and local resistance generated by well fluid flowing through the valve in the opposite direction to the movement direction of the rod column, whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/14F04B47/00
Inventor 郑瑞波夏志刚刘培厚张炜贺春谢义华邓卫东易湘粤
Owner CHINA PETROLEUM & CHEM CORP
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