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A high temperature resistant coated sucker rod

A technology for sucker rods and high temperature resistance, which is applied in the direction of drill pipes, drill pipes, molybdenum compounds, etc., and can solve the problems of poor high temperature resistance of sucker rods and unsatisfactory oil production requirements, so as to improve adhesion performance and facilitate The effect of taking over and dismantling and enhancing the tightness

Active Publication Date: 2021-04-06
DONGYING JINYILAI PETROLEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of oil pumping, as the oil field is developed deeper and deeper, the temperature of the internal oil is also getting higher and higher. However, the current high temperature resistance of the sucker rod is relatively poor, which does not meet the needs of oil production.

Method used

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  • A high temperature resistant coated sucker rod
  • A high temperature resistant coated sucker rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A high temperature resistant coated sucker rod, the sucker rod is composed of at least one sucker rod unit section 1; the sucker rod unit section 1 includes a raised port 2, a concave port 3 and a cylindrical rod 4, the The protruding port 2 and the concave port 3 are respectively fixedly arranged at both ends of the cylindrical rod 4; the protruding port 2 and the concave port 3 can be fitted with each other; a plurality of the sucker rod unit sections 1 can respectively pass through The protruding port 2 and the concave port 3 are connected end to end.

[0042] The protruding port 2 and the concave port 3 are connected by thread or buckle.

[0043] The sucker rod unit section 1 is made of anti-corrosion metal material.

[0044] The outer surface of the sucker rod unit section 1 is provided with a high temperature resistant layer.

[0045] The high temperature resistant layer is prepared from modified polyimide.

[0046] The modified polyimide is prepared by modifyi...

Embodiment 2

[0069] A high temperature resistant coated sucker rod, the sucker rod is composed of at least one sucker rod unit section 1; the sucker rod unit section 1 includes a raised port 2, a concave port 3 and a cylindrical rod 4, the The protruding port 2 and the concave port 3 are respectively fixedly arranged at both ends of the cylindrical rod 4; the protruding port 2 and the concave port 3 can be fitted with each other; a plurality of the sucker rod unit sections 1 can respectively pass through The protruding port 2 and the concave port 3 are connected end to end.

[0070] The protruding port 2 and the concave port 3 are connected by threads.

[0071] The sucker rod unit section 1 is made of anti-corrosion metal material.

[0072] The outer surface of the sucker rod unit section 1 is provided with a high temperature resistant layer.

[0073] The high temperature resistant layer is prepared from modified polyimide.

[0074] The modified polyimide is prepared by modifying polyim...

Embodiment 3

[0097] A high temperature resistant coated sucker rod, the sucker rod is composed of at least one sucker rod unit section 1; the sucker rod unit section 1 includes a raised port 2, a concave port 3 and a cylindrical rod 4, the The protruding port 2 and the concave port 3 are respectively fixedly arranged at both ends of the cylindrical rod 4; the protruding port 2 and the concave port 3 can be fitted with each other; a plurality of the sucker rod unit sections 1 can respectively pass through The protruding port 2 and the concave port 3 are connected end to end.

[0098] The protruding port 2 and the concave port 3 are connected by thread or buckle.

[0099] The sucker rod unit section 1 is made of anti-corrosion metal material.

[0100] The outer surface of the sucker rod unit section 1 is provided with a high temperature resistant layer.

[0101] The high temperature resistant layer is prepared from modified polyimide.

[0102] The modified polyimide is prepared by modifyi...

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Abstract

The invention relates to the field of sucker rods, in particular to a high temperature resistant coated sucker rod, the sucker rod is composed of at least one unit section of the sucker rod; the unit section of the sucker rod includes a raised port, a concave port and a cylindrical rod, the protruding port and the concave port are respectively fixed at both ends of the cylindrical rod; the outer surface of the sucker rod unit section is provided with a high temperature resistant layer; the high temperature resistant layer is made of modified polyimide Amines are prepared. The invention solves the problem that the surface of the sucker rod becomes hot during long-time work. The high-temperature-resistant coated sucker rod of the present invention has the following advantages: (1) The sucker rod is composed of at least one sucker rod unit section, which is convenient for connection and disassembly; Outside the oil rod, the oil rod will not be deformed or affect the quality of oil pumping due to the accumulation of a large amount of heat during use.

Description

technical field [0001] The invention relates to the field of sucker rods, in particular to a high-temperature-resistant coated sucker rod. Background technique [0002] At present, in the field of oil production in oil fields, the pumping unit is the most important component in the mechanical recovery, and the sucker rod is an important part of the oil recovery of the pumping unit, which mainly extracts oil quickly. In the process of oil pumping, as the oil field is developed deeper and deeper, the temperature of the internal oil is also getting higher and higher. However, the high temperature resistance of the current sucker rod is relatively poor, which does not meet the needs of oil recovery. Contents of the invention [0003] In view of the above problems, the present invention provides a high temperature resistant coated sucker rod, the sucker rod is composed of at least one sucker rod unit section; the sucker rod unit section includes a convex port, a concave port an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/00E21B17/046C01G39/00
CPCC01G39/00E21B17/00E21B17/046
Inventor 刘奕良孙佳星崔东华刘奕辰刘奕何于法珍刘国光
Owner DONGYING JINYILAI PETROLEUM MACHINERY
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