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

Aliphatic polyketone fully-coated sucker rod and preparation method thereof

An aliphatic polyketone, sucker rod technology, applied in drill pipe, earthwork drilling, drilling equipment and other directions, can solve the problems of high water absorption, short service life, easy cracking, etc., to improve wear resistance and resistance. Effects of impact resistance, improved workability, improved mechanical strength

Active Publication Date: 2020-05-29
SHENGLI OILFIELD DONGRUN MACHINERY ENG
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polyamide materials have excellent high temperature resistance and excellent chemical stability, they are brittle, easy to crack, have high water absorption and short service life.
Although polyether ether ketone materials have superior comprehensive performance, they are expensive and not suitable for large-scale popularization and application

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
  • Aliphatic polyketone fully-coated sucker rod and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 100kg linear alternating copolymerized aliphatic polyketone (M n =87,300, the content of propylene in the structural unit accounts for 33 mol%, manufactured by Hyonsung), 2kg 2,2-bis(4-hydroxyphenyl)propane, 5kg tetraphenylphosphonium iodide, 20kg mica, 0.05kg 2,6-benzene Add cyclohexylamide diformate, 4kg erucamide, 22kg silicon micropowder, 10kg anti-aging agent D and 0.6kg calcium oxide to a mixer, and stir evenly; dry the obtained mixture at 90°C for 2.5 hours to obtain a dried product.

[0054] Clean the surface of the sucker rod with an alkaline aqueous solution to remove oil and rust, and perform sandblasting on the cleaned surface. Clean again with acetone after blasting. Fix both ends of the sucker rod head on the motor, start the motor to drive the sucker rod to rotate axially, and slowly move horizontally to the nozzle of the extruder. Take a part of the dried product and add it to the feed pipe of the extruder, so that the dried product enters the material...

Embodiment 2

[0057] In addition to using 4kg 2,2-di(4-hydroxyphenyl)propane, 10kg tetraphenylphosphonium iodide, 13kg mica, 0.02kg 2,6-phthalic acid cyclohexylamide, 7kg erucamide, 30kg silicon micropowder, In addition to 4kg of anti-aging agent D and 0.9kg of calcium oxide, a fully-coated sucker rod was prepared in the same manner as in Example 1 to obtain a fully-coated sucker rod 2 .

Embodiment 3

[0059] Except for using 13 kg of mica and 0.02 kg of magnesium pimelate instead of 2,6-phthalic acid cyclohexanamide, a fully-coated sucker rod was prepared in the same manner as in Example 1 to obtain a fully-coated sucker rod 3 .

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 discloses an aliphatic polyketone fully-coated sucker rod, which is characterized by comprising a rod body, a rod head and an aliphatic polyketone coating layer, which is completely coated on the surfaces of the rod body and the rod head. The aliphatic polyketone coating layer is prepared from the following components in parts by weight:100 parts by weight of polyaliphatic polyketone; 1 to 5 parts of 1,2-bis(4-hydroxyphenyl)propane, 3 to 12 parts of iodide onium salt, 10 to 25 parts of mica, 0.02 to 0.05 part of a nucleating agent, 3 to 10 parts of erucyl amide, 15 to 35 parts ofsilica powder, 2 to 13 parts of an anti-aging agent and 0.5 to 1 part of a water catching agent. The sucker rod has excellent wear resistance, corrosion resistance, impact resistance and anti-scalingperformance. The coating layer can be tightly combined with the sucker rod and is not prone to falling off, so that the service life of the sucker rod is greatly prolonged, and the operation cost ofan oil field is reduced. The invention further discloses a method for preparing the fully-coated sucker rod.

Description

technical field [0001] The invention relates to the technical field of petroleum machinery, in particular to an aliphatic polyketone fully-coated sucker rod and a preparation method thereof. Background technique [0002] The working environment of the sucker rod is extremely complex, and the well fluid contains corrosive substances such as water, chloride ions, hydrogen sulfide and carbon dioxide. The sucker rod is directly in contact with the corrosive medium, and long-term use may easily lead to corrosion, eccentric wear, and breakage of the sucker rod. This increases the operating frequency to a large extent, greatly increases the production cost, and becomes an important factor restricting crude oil production. It is becoming more and more important to carry out wear-resistant and anti-corrosion treatment on the sucker rod. [0003] In order to avoid corrosion of sucker rods, anti-corrosion treatment is mainly carried out by coating resin, electroplating or cold sprayi...

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
IPC IPC(8): C08L73/00C08K13/02C08K5/13C08K3/34C08K3/22C08K5/50E21B17/00
CPCC08K3/22C08K3/34C08K5/13C08K5/50C08K13/02C08K2003/2206C08L2201/08E21B17/00C08L73/00
Inventor 薛居生刘科
Owner SHENGLI OILFIELD DONGRUN MACHINERY ENG