Unlock instant, AI-driven research and patent intelligence for your innovation.

Sand-blocking ring for defueling pump

An oil well pump and sand control technology, which is applied in the direction of pump components, variable displacement pump components, and components of pumping devices for elastic fluids, etc., can solve the problem of losing the sand-retaining effect of the seal, fast wear of the seal ring, and wear of the seal ring Reduce the amount of sand, reduce wear, and reduce accumulation.

Inactive Publication Date: 2012-03-28
刘庆敏
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, especially in oil wells with a large sand content, a large amount of sand particles accumulate on the sealing ring. Since the sealing ring is soft, it is inevitable that sand particles will enter between the sealing ring and the pump barrel. When the plunger moves up and down, It will cause wear to the sealing ring. Once there is wear and tear, the sand particles entering will gradually increase, and the wear speed of the sealing ring will become faster and faster.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sand-blocking ring for defueling pump
  • Sand-blocking ring for defueling pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] In the embodiment of the accompanying drawings, a sand retaining ring (3) made of stainless steel is installed on the top of the soft sealing ring (4), at the position of the oil outlet hole (2) of the upper oil outlet joint (1). The sand retaining ring (3) and the upper oil outlet joint (1) are welded together, of course, they can also be connected together by threads or interference fit. The inner surface of the upper end of the sand retaining ring (3) is bell-shaped, and its material can also be other metals or other hard materials. Of course, when the soft sealing ring (4) is installed on the plunger body (5), the hard sand retaining ring (3) can also be installed on the plunger body (5).

[0013] The sand retaining ring of the oil well pump provided by the present invention has been introduced in detail above. The principles and implementation methods of the present invention have been explained by using specific examples in this paper. The descriptions of the abov...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a sand-blocking ring for a defueling pump. The sand-blocking ring is mounted at the upper part of a soft sealing ring of a traditional sand-proof defueling pump, is made of metal or other hard materials and is fixedly connected to a plunger body or an upper defueling joint. Blocking sand grains are directly settled on the soft sealing ring, thereby reducing the quantity of sand grains entering into a space between the soft sealing ring and a pump cylinder, relieving the abrasion of the soft sealing ring and ensuring a long-term effective sand-proof function of the defueling pump.

Description

technical field [0001] The invention relates to a sand retaining ring of an oil pump, in particular to a sand retaining ring used in a sand control oil well pump. Background technique [0002] Most oil wells have light or heavy sand production. In order to prevent sand particles from wearing out the oil well pump and affecting the use of the oil well pump, various sand control oil well pumps have been invented. For example, Chinese patent CN02232339.2 discloses a sand-retaining oil well pump, which is provided with a soft sealing ring on the upper end of the plunger body or the oil outlet joint to prevent sand grains from entering the gap between the plunger and the pump barrel, and the sealing ring A bypass hole is opened below to eliminate the pressure difference between the top and bottom of the sealing ring. This invention makes the sealing ring no longer bear the pressure from up and down, prolongs the life of the sealing ring, and also achieves the purpose of sand prev...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/00
Inventor 谢文献马增海王欣辉官鹏刘明杰刘庆敏马波
Owner 刘庆敏