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Preparation method of grafted cross-linked polyamide lined pipe and high temperature resistant lined oil extraction pipe

A technology for oil extraction pipes and high temperature resistance, which is applied in drilling pipes, casing pipes, earthwork drilling and production, etc., to achieve the effects of improving heat resistance, good acid resistance, and reducing the possibility of degradation

Active Publication Date: 2016-08-31
JINAN QIYU COMPOSITE MATERIAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem in the prior art that the modified plastic oil suction pipe lining pipe can only work at a temperature below 130°C, the present invention provides a high temperature resistant oil suction pipe lining pipe, which has high temperature resistance , wear-resistant, anti-corrosion, anti-wax advantages, can be used for a long time in the pumping well at a temperature above 150 ℃

Method used

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  • Preparation method of grafted cross-linked polyamide lined pipe and high temperature resistant lined oil extraction pipe
  • Preparation method of grafted cross-linked polyamide lined pipe and high temperature resistant lined oil extraction pipe
  • Preparation method of grafted cross-linked polyamide lined pipe and high temperature resistant lined oil extraction pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A high-temperature-resistant lined oil suction pipe liner pipe, the liner pipe is prepared from the following kg components as special pellets, and the pellets are extruded to form a pipe:

[0058] Polyhexamethylene adipamide with a number average molecular weight of 30,000-50,000: 25kg;

[0059] EPDM rubber: 1kg;

[0060] Grafted polyolefin elastomer with a molecular weight of 50,000-100,000: 5kg;

[0061] N,N'-4,4'-diphenylmethane bismaleimide: 10kg;

[0062] Antioxidant 1010: 4kg;

[0063] Antiaging agent RD: 3kg;

[0064] Cross-linking agent DCP: 0.1kg;

[0065] Grafting catalyst rubidium trioxide: 0.05kg.

[0066] A preparation method for preparing the high-temperature-resistant lined oil suction pipe lining pipe, comprising the following steps: polyhexamethylene adipamide, EPDM rubber, grafted polyolefin elastomer, N,N' -4,4'-Diphenylmethane bismaleimide, antioxidant, anti-aging agent, crosslinking agent, grafting catalyst were mixed evenly with a high-speed...

Embodiment 2

[0074] A high-temperature-resistant lined oil suction pipe lining pipe material, the liner pipe material is prepared from the following kg components to form special pellets, and the pellets are extruded to form pipes:

[0075] Polyhexamethylene adipamide with a number average molecular weight of 30,000-50,000: 20kg;

[0076] EPDM rubber: 5kg;

[0077] Grafted polyolefin elastomer with a number average molecular weight of 50,000-100,000: 10kg;

[0078] N,N'-4,4'-diphenylmethane bismaleimide: 15kg;

[0079] Antioxidant 300: 1kg;

[0080] Antiaging agent D: 5kg;

[0081] Cross-linking agent PBO: 0.8kg;

[0082] Grafting catalyst rubidium trioxide: 0.015kg;

[0083] A preparation method for preparing the high-temperature-resistant oil-suction liner lining pipe, the steps of which are the same as in Example 1, wherein the parameters of the twin-screw extruder: Zone 1: 185°C, Zone 2: 290°C, Zone 3: 280°C, zone 4: 240°C, zone 5: 290°C, zone 6: 280°C, head temperature: 170°C, h...

Embodiment 3

[0089] A high-temperature-resistant lined oil suction pipe lining pipe material, the liner pipe material is prepared from the following kg components to form special pellets, and the pellets are extruded to form pipes:

[0090] Polyhexamethylene adipamide with a number average molecular weight of 30,000-50,000: 23kg;

[0091] EPDM rubber: 10kg;

[0092] Grafted polyolefin elastomer with a number average molecular weight of 50,000-100,000: 1kg;

[0093] N,N'-4,4'-diphenylmethane bismaleimide: 5kg;

[0094] Antioxidant BHT: 5kg;

[0095] Antiaging agent 4010: 1kg;

[0096] Cross-linking agent dicumyl peroxide: 0.4kg;

[0097] Grafting catalyst rubidium trioxide: 0.04kg.

[0098] A preparation method for preparing the high-temperature-resistant lined oil suction pipe lining pipe, the steps are the same as in Example 1, wherein the parameters of the twin-screw extruder: Zone 1: 180°C, Zone 2: 260°C, Zone 3: 300 ℃, zone 4: 280℃, zone 5: 240℃, zone 6: 230℃, head temperature: 1...

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Abstract

The invention relates to a preparation method of a grafted crosslinked polyamide lining pipe material and a high-temperature-resistant lining oil extraction pipe, and discloses a lining pipe material of a high-temperature-resistant lining oil extraction pipe. The lining pipe material of the high-temperature-resistant lining oil extraction pipe is prepared from the following components in parts by weight: 20-25 parts of polyhexamethylene adipamide, 1-10 parts of ethylene-propylene-diene-terpolymer rubber, 1-10 parts of grafted polyolefin elastomer, 5-15 parts of N,N'-m-phenylene bismaleimide, 1-5 parts of antioxidant, 1-5 parts of anti-ageing agent, 0.1-0.8 part of cross-linking agent and 0.015-0.05 part of grafting catalyst. The lining pipe material of the high-temperature-resistant lining oil extraction pipe has the advantages of being high-temperature-resistant, wear-resistant, corrosion-resistant and wax-resistant, and can be used in an oil extraction well at the temperature of more than 150 DEG C for a long term.

Description

technical field [0001] The invention relates to the technical field of oilfield petroleum machinery, in particular to a high-temperature-resistant grafted cross-linked polyamide lined pipe, which is used for compounding with steel oil suction pipes, and realizes anti-eccentric wear, anti-corrosion, anti-wax deposition, etc. in the field of high-temperature oil production Features. Background technique [0002] Lined oil pipe is to use special technology to line a layer of special plastic wear-resistant pipe inside the ordinary steel oil pipe, so that the liner and oil pipe are closely connected together to form a "pipe-in-pipe" structure. Compared with metal pipes, oil-lined pipes have the advantages of light weight, corrosion resistance, wear resistance, no rust, low thermal conductivity, low friction coefficient, good insulation performance, strong self-cleaning property, and small fluid resistance. This technology does not need to change the current oil extraction proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L23/16C08L51/06C08K5/00C08K5/134C08K5/14C08K5/375C08K5/13C08G69/48B29C47/92E21B17/00B29C48/92
CPCB29C48/92B29C2948/92514B29C2948/9258B29C2948/92704C08L77/06C08L2201/08C08L2203/18C08L2205/03E21B17/00C08L23/16C08L51/06C08K5/00C08K5/3415C08K5/14B29B7/46B29B7/72B29B9/06B29B9/12B29B9/16B29C48/40B29C2948/9259B29C2948/92895B29C2948/92904
Inventor 韩克军李华张文栓韩家琪张胧月李昊阳李峰云
Owner JINAN QIYU COMPOSITE MATERIAL TECH DEV
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