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Self-lubricating polished sucker rod tracking seal

A kind of oil sucker polished rod, self-lubricating technology, applied in sealing/packing, wellbore/well components, earthmoving and other directions, can solve the problems of accelerated wear and consumption of sealing packing, oil well oil leakage, loss of lubrication, etc., to prevent crude oil Leakage, extended service life, reduced friction effects

Inactive Publication Date: 2016-01-13
WEILE ENERGY TECH BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the oil pump is dry-pumped, the lubrication between the oil pumping rod and the sealing packing is lost, which accelerates the wear and tear of the sealing packing, thus causing the oil well to leak

Method used

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  • Self-lubricating polished sucker rod tracking seal
  • Self-lubricating polished sucker rod tracking seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 The present embodiment shown includes an oil pumping polished rod 1, a sealing box 2, a lower sealing gasket 3, a follower cup 4, a sealing packing 5, a lower pressing sleeve 6, an oil hole 7, an upper sealing gasket 8, and an upper pressing sleeve 9 , Gland 10, bolt 11, washer 12, lubricant 13 and gland handle 14, etc. The oil sucking polished rod 1 is a smooth round rod to strengthen sealing and reduce movement resistance. The sealing box 2 is cylindrical, and its inner cavity is a cylindrical cavity. There is a round hole in the center of the bottom of the inner cavity, so that the oil pumping rod 1 can pass through. The lower part of the sealing box 2 has internal threads to connect with the wellhead. The upper part has external thread, so that be connected with gland 10. The lower gasket 3 is circular, and its center has a circular hole, so that the oil pumping rod 1 passes through, and the lower gasket 3 prevents crude oil from entering the cavi...

Embodiment 2

[0015] Such as figure 2 The present embodiment shown includes an oil pumping polished rod 1, a sealing box 2, a lower sealing gasket 3, a follower cup 4, a sealing packing 5, a lower pressing sleeve 6, an oil hole 7, an upper sealing gasket 8, and an upper pressing sleeve 9 , Gland 10, bolt 11, washer 12, lubricant 13 and gland handle 14, etc. The oil sucking polished rod 1 is a smooth round rod to strengthen sealing and reduce movement resistance. The sealing box 2 is cylindrical, and its inner cavity is a cylindrical cavity. There is a round hole in the center of the bottom of the inner cavity, so that the oil pumping rod 1 can pass through. The lower part of the sealing box 2 has internal threads to connect with the wellhead. The upper part has external thread, so that be connected with gland 10. The lower gasket 3 is circular, and its center has a circular hole, so that the oil pumping rod 1 passes through, and the lower gasket 3 prevents crude oil from entering the cav...

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PUM

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Abstract

The invention relates to a self-lubricating polished sucker rod tracking seal, in particular to a self-lubricating polished sucker rod tracking seal suitable for use in the cases where a polished sucker rod deviates from the center of a seal box and where an oil pump sucks dry. The self-lubricating polished sucker rod comprises a polished sucker rod 1, a seal box 2, a lower seal gasket 3, a follow-up material cup 4, a seal filler 5, a lower pressure sleeve 6, an oil hole 7, an upper seal gasket 8, an upper pressure sleeve 9, a gland 10, a bolt 11, a washer 12, lubricant 13, a gland stem 14 and the like. The self-lubricating polished sucker rod tracking seal has the advantages that when the polished sucker rod deviates from the center of the seal box, the seal filler is aligned constantly with the center of the polished sucker rod with no eccentric wear occurring due to seal filler translation following the polished sucker rod; since the polished sucker rod is soaked in the lubricant, an oil slick forms on the surface of the polished sucker rod when the polished sucker moves up and down, and wear between the polished sucker rod and the seal filler decreases as an oil pump sucks dry; the service life of the seal filler can thereby be prolonged and crude oil leakage of an oil well is prevented.

Description

technical field [0001] The invention relates to a self-lubricating oil pumping polished rod tracking sealer, in particular to a self-lubricating oil pumping polished rod tracking sealer suitable for use when the oil pumping polished rod deviates from the center of the sealing box and when the oil pump is dry pumping. Background technique [0002] Currently used oil well sealers generally do not have the functions of tracking the polished rod sealing and self-lubricating. When the oil sucking rod deviates from the center of the sealing box, partial wear of the sealing packing will occur. When the oil pump is dry-pumped, the lubrication between the oil pumping rod and the sealing packing is lost, which accelerates the wear and tear of the sealing packing, thus causing the oil well to leak. Contents of the invention [0003] The purpose of the present invention is to design a self-lubricating oil pumping rod tracking sealer, the sealing packing can track the center of the oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/03
Inventor 刘玉玺刘蕾
Owner WEILE ENERGY TECH BEIJING CO LTD