Novel oil-well pump capable of cleaning well during oil extraction

An oil well pump, a new type of technology, is applied in the direction of flushing wellbore, pumps with flexible working elements, components of pumping devices for elastic fluids, etc., which can solve the problems affecting production efficiency, fixed valve cover and fixed valve Problems such as broken balls and high financial consumption can achieve the effect of closing and fixing the valve, improving service life and improving work efficiency

Active Publication Date: 2011-08-17
陕西兰恩实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the traditional fixed valve assembly are: when the well fluid enters the pump body during the upstroke, it will directly generate an upward impact force, which will cause a strong impact between the fixed valve ball and the fixed valve cover, which will easily lead to fixed The rupture and damage of the ball cover and the fixed ball; during the downstroke, there will be a strong impact between the fixed ball and the fixed ball seat, which will easily lead to the rupture of the fixed ball seat and the fixed ball and damage
...The process is complicated, manpower, material and financial resources are consumed, which affects production efficiency, and the well fluid spilled on the ground causes environmental pollution

Method used

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  • Novel oil-well pump capable of cleaning well during oil extraction
  • Novel oil-well pump capable of cleaning well during oil extraction
  • Novel oil-well pump capable of cleaning well during oil extraction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1. The structure of the plunger oil well pump with a fixed ball cover with leg-shaped circlips

[0022] figure 1 shows the overall structure of the plunger oil well pump of embodiment 1

[0023] In the oil well, there are pipe string 1 and pump barrel 3 connected up and down. The pipe string 1 and pump barrel 3 are located in the well bore 5, and the plunger 4 is located in the pump barrel 3. Connect with sucker rod 2. The fixed valve assembly is made up of fixed valve ball cover 10, fixed valve ball 12, fixed valve ball seat 14, fixed valve housing 15, upper joint 8, and lower joint 16. The bottom of the plunger 4 is fixed with a disconnector 7 .

[0024] figure 2 Show the structure of the fixed ball cover of Embodiment 1

[0025] The bottom of this ball cover 10 is four leg-shaped jump rings 13; The height of leg-shaped jump rings 13 is 10CM, and the lower end of leg-shaped jump rings 13 has inward locking key 19; The top of this ball cover 10 has bal...

Embodiment 2

[0033] Embodiment 2. The structure of the plunger oil well pump with a fixed ball cover with radial channel holes

[0034] Figure 4 Shows the structure of the plunger oil well pump with the radial flow channel hole 22 and the fixed ball cover of the ball

[0035] A clamping device 24 is provided on the fixed valve housing 15 and the fixed valve cover 10, and the clamping device is composed of a spring pin and a pin clamping platform. There are four symmetrical radial flow channel holes 22 on the outer wall of the fixed ball cover above the fixed ball seat 14, and there is a rubber ring 23 on the bottom edge of the inner cavity of the fixed ball seat 14, which is conducive to fixing The lifting of the ball 12. The function, position or connection relationship of other components in this embodiment 2 are the same as those in embodiment 1.

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Abstract

The invention discloses a novel oil-well pump capable of cleaning a well during oil extraction. The oil-well pump is characterized in that an oil outlet of a fixed valve ball cover is positioned at the middle part or lower part of a valve ball cover, namely a radial runner hole; the structure can be as follows: the upper part of the fixed valve ball cover is provided with a ball cover clamping platform; the top part at the center of the fixed valve ball cover is provided with a screwed connection hole; the lower part of the fixed valve ball cover is provided with a leg-shaped clamping spring; the lower end of the leg-shaped clamping spring is provided with an inward clip key; the upper wall of the fixed valve ball seat is provided with an annular groove; the upper part of a fixed valve shell is provided with an axial circular hole for the input and output of the fixed valve ball cover; and the periphery of the circular hole is provided with a circle of oil outlets; the structure also can be as follows: the lower part of the side wall of the fixed valve ball cover is provided with a plurality of radial runner holes; and the fixed valve shell above the fixed valve ball cover is provided with a clamping and sealing device which can be the clamping spring or a spring sheet, or an upper drain plug, or a moving pin screw, or a rubber ring. The oil-well pump provided by the invention can perform well-cleaning operation simultaneously, blockage can be prevented effectively, moreover the service life of a fixed valve assembly can be prolonged greatly, the working efficiency of an oil-extraction pump is improved, the operation amount is reduced, and environmental pollution to the ground is relieved.

Description

technical field [0001] The invention relates to an oil well pump used for oil production, in particular to a novel plunger oil well pump capable of flushing wells at the same time. Background technique [0002] The traditional oil well pump is mainly composed of a pump barrel, a plunger, and a fixed valve assembly. The plunger is located in the pump barrel, and the fixed valve assembly is located below the pump barrel. The fixed valve assembly is composed of a fixed valve housing, a fixed valve ball cover in the fixed valve housing, a fixed valve ball in the ball cover, and a fixed valve seat at the bottom of the ball cover. The upper end of the fixed valve housing is threaded with the pump barrel, and the lower end is threaded with the joint. The fixed ball cover is threadedly connected with the fixed ball seat, the center of the fixed ball seat has a well fluid inlet hole, and the top of the fixed ball cover has a well fluid oil outlet hole. [0003] During the productio...

Claims

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Application Information

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IPC IPC(8): F04B47/00F04B53/10E21B21/00
Inventor 张春生
Owner 陕西兰恩实业有限公司
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