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Two-way sucker rod

A sucker rod and one-way valve technology, applied in the direction of drill pipe, drilling equipment, wellbore/well parts, etc., can solve the problems of high energy consumption, low oil pumping rate, energy waste, etc., and achieve improved oil yield , Improve oil pumping efficiency and improve service life

Active Publication Date: 2020-07-28
DAQING DANFENG PETROLEUM TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the donkey's head rises, it drives the pumping rod to move upwards, pumping the oil from the ground to the ground, and the pressure in the pipe inserted in the ground drops to generate suction. , at this time, the donkey's head is converted from potential energy to kinetic energy, but no work is done, resulting in wasted energy of this part, high energy consumption, and low oil pumping rate

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] refer to Figure 1 to Figure 4 The embodiment of the two-way sucker rod of the present invention will be further described.

[0024] A two-way sucker rod, including an outer tube, an inner tube and a sucker rod, the inner tube is placed in the outer tube, the sucker rod is placed in the inner tube, and a vertical partition is connected to the inner tube to separate the inner tube It is the left cavity and the right cavity, the drawer includes the first drawer 1 and the second drawer 2 with the same structure, the partition is divided into a left partition and a right partition, and the left partition is fixed on the first drawer 1 , the right partition is fixed on the second drawer rod 2, moves up and down with the first drawer rod 1, the first drawer rod 1 and the second drawer rod 2 are spliced ​​to form a cylinder, the first drawer rod 1 and the second drawer rod 2 are both It is composed of two semicircular cylinders spliced ​​together, and the straight sides of th...

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Abstract

The invention discloses a two-way sucker rod comprising an inner pipe and suction rods arranged in the inner pipe. Partition plates are connected in the inner pipe, and the inner pipe is partitioned into a left containing cavity and a right containing cavity. The suction rods include the first suction rod and the second suction rod. The first suction rod and the second suction rod are spliced to form a cylinder shape. The first suction rod is in the left containing cavity. The second suction rod is in the right containing cavity. End plates are arranged on the upper potion and the lower portion of each containing cavity correspondingly. Check valves are connected to the end plates. Each end plate in the right containing cavity is provided with the two corresponding check valves with opposite valve opening directions. A valve plate capable of being switched between valve openings is arranged between every two corresponding check valves. A power conversion device is arranged above the suction rods. The second suction rod is connected with a horsehead through the power conversion device. The first suction rod is directly connected to the horsehead through a traction rope. When the horsehead rises, the first suction rod is driven to rise; and when the horsehead falls, the second suction rod is lifted upwards through the power conversion device. The oil suction effect can be achieved when the horsehead rises and falls, and the oil suction efficiency is improved.

Description

technical field [0001] The present invention relates to an oil production machine, more specifically, it relates to a two-way sucker rod. Background technique [0002] Beam pumping units are mostly used in oil fields. The motor drives the crank to rotate. The crank is hinged to one end of the beam through a connecting rod to make the beam swing. The other end of the beam is connected to a donkey head, which swings with the beam. When moving up and down, a rope is connected to the donkey's head, and the other end of the rope is connected to the drawer rod, thereby driving the drawer rod to move up and down. [0003] When the donkey's head rises, it drives the pumping rod to move upwards, pumping the oil from the ground to the ground, and the pressure in the pipe inserted in the ground drops to generate suction. , at this time, the donkey head is converted from potential energy to kinetic energy, but no work is done, resulting in wasted energy of this part, high energy consum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/00E21B34/06
CPCE21B17/00E21B34/06
Inventor 左入林左韬
Owner DAQING DANFENG PETROLEUM TECH DEV CO LTD
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