Coupling-type multiplier

A drag reduction and sucker rod technology, applied in drilling equipment, earthmoving, drill pipe, etc., can solve the problems of downhole tubing and sucker rod loss, breakage, oil production loss and other problems

Inactive Publication Date: 2018-05-22
刘建航
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the process of oil production, due to the well deviation of the oil well, the downhole oil pipe and the sucker rod are worn out due to friction, and frequent breakage accidents occur, which cause great losses to the oil production work in the oil field. How to solve this problem well is placed in the oil production The important issue before the workers, how to further reduce the loss, needs to be developed and applied urgently;

Method used

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Embodiment Construction

[0011] Such as figure 1 The present invention of the structure shown is called: collar type multiplier, and its installation and implementation position is figure 2 The position of the invention 14 is shown. In oil extraction, oil well production consists of figure 2 The shown facilities mainly include: pumping unit 8 , wellhead Christmas tree 9 , sucker rod 10 , oil pipe 11 , oil well pump 13 , and casing 12 . The position of the present invention 14 is just installed in the oil pipe 12, above the oil well pump 13, is connected in series on the sucker rod 10, and moves up and down with the oil sucker rod 8 in the oil pipe 11.

[0012] In the present invention, metal copper or nickel with a small friction coefficient is embedded in the two ends of the cylindrical anti-wear body 3, that is, the lower drag-reducing ring 1 and the upper drag-reducing ring 6. When rubbing against the inner wall of the oil pipe 12, the metallic copper or nickel can act as the friction The inte...

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Abstract

The invention discloses a coupling-type multiplier capable of solving abrasion of an oil tube and a sucker rod. The coupling-type multiplier is mounted on the downhole sucker rod, moves up and down along with the sucker rod, and is in moving friction with the inner wall of the oil tube in a tightly attached mode; the oil tube is bent due to an oblique well, and under the upward tension action of an oil sucking machine, the coupling-type multiplier produces very high lateral pressure on the inner wall of the oil tube, therefore abrasion is very high; and because metal rings with small frictioncoefficients are embedded in the two ends of the coupling-type multiplier, the lubrication property can be effectively improved, so that abrasion is reduced to reduce frictional resistance, therefore,according to the coupling-type multiplier, the effects of reducing abrasion between the oil tube and the sucker rod and reducing the frictional resistance between the oil tube and the sucker rod whenthe coupling-type multiplier moves upwards along with the sucker rod are completed, and the purposes of reducing loss and increasing the production efficiency can be achieved.

Description

technical field [0001] The present invention is a coupling-type multiplier designed for reducing the consumption of oil production in the oil field, which can solve the wear problem between the downhole oil pipe and the sucker rod and is used in the oil well of oil exploitation. Background technique [0002] In the process of oil production, due to the well deviation of the oil well, the downhole oil pipe and the sucker rod are worn out due to friction, and frequent breakage accidents occur, which cause great losses to the oil production work in the oil field. How to solve this problem well is placed in the oil production The important issue before the workers, how to further reduce the loss, needs to be developed and applied urgently; [0003] Under the above circumstances, oil production workers traditionally adopt well repair and maintenance, which increases production costs, causes damage to oil wells, and causes considerable workload; the present invention is to solve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/10E21B17/02
CPCE21B17/02E21B17/1085
Inventor 刘建航
Owner 刘建航
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