Modified epoxy-phenolic high-temperature thermal recovery surface pipeline

A technology for epoxy phenolic and ground pipelines, applied in rigid pipes, epoxy resin coatings, pipes, etc., can solve problems such as low production efficiency, complicated steps, and substandard pipeline quality, so as to improve production efficiency, simple operation, suitable for The effect of promotion and use

Active Publication Date: 2021-01-29
胜利油田金岛工程安装有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a modified epoxy phenolic high-temperature thermal recovery surface pipeline. The prepared heavy oil transportation pipeline has high strength, high toughness, oil resistance, high temperature resistance, low temperature resistance, and wear resistance. and other advantages, which solve the problems of low production efficiency, redundant steps and substandard quality of the produced pipelines in some current processes

Method used

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  • Modified epoxy-phenolic high-temperature thermal recovery surface pipeline

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Effect test

Embodiment 1

[0029] Embodiment 1: A modified epoxy phenolic high-temperature thermal recovery surface pipeline, the pipeline is composed of an outer coating, an outer rubber layer, a skeleton layer, an inner rubber layer and an inner coating, and the outer coating and the inner coating have the same composition. Its preparation process includes the following steps: S1, the first mixing: put the corresponding number of inner rubber layer raw materials into the internal mixing chamber of the internal mixer for mixing, after mixing, the inner rubber layer colloid is obtained, and the mixing temperature is 70°C. The rotor speed of the internal mixer is 50 / min, the mixing time is 9min, and the top bolt pressure of the internal mixer is 0.6mpa; repeat the above steps to mix the raw materials of the outer rubber layer, after mixing, the outer rubber layer colloid is obtained, and the mixing conditions are the same as The inner rubber layer raw materials are the same; S2, vulcanization: mix the cor...

Embodiment 2

[0031] Embodiment 2: A modified epoxy phenolic high-temperature thermal recovery surface pipeline, the pipeline is composed of an outer coating, an outer rubber layer, a skeleton layer, an inner rubber layer and an inner coating, and the outer coating and the inner coating have the same composition. Its preparation process includes the following steps: S1, the first mixing: put the corresponding number of inner rubber layer raw materials into the mixing chamber of the internal mixer for mixing, after mixing, the inner rubber layer colloid is obtained, and the mixing temperature is 80°C. The rotor speed of the internal mixer is 60r / min, the mixing time is 12min, and the top bolt pressure of the internal mixer is 0.7mpa; repeat the above steps to mix the raw materials of the outer rubber layer, after mixing, the outer rubber layer colloid is obtained, and the mixing conditions are the same as The inner rubber layer raw materials are the same; S2, vulcanization: mix the correspond...

Embodiment 3

[0033] Embodiment 3: A modified epoxy phenolic high-temperature thermal recovery surface pipeline, the pipeline is composed of an outer coating, an outer rubber layer, a skeleton layer, an inner rubber layer and an inner coating, and the outer coating and the inner coating have the same composition. Its preparation process includes the following steps: S1, the first mixing: Put the corresponding number of inner rubber layer raw materials into the internal mixing chamber of the internal mixer for mixing, after mixing, the inner rubber layer colloid is obtained, and the mixing temperature is 90°C. The rotor speed of the internal mixer is 70r / min, the mixing time is 15min, and the top bolt pressure of the internal mixer is 0.8mpa; repeat the above steps to mix the raw materials of the outer rubber layer, after mixing, the outer rubber layer colloid is obtained, and the mixing conditions are the same as The inner rubber layer raw materials are the same; S2, vulcanization: mix the c...

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Abstract

The invention discloses a modified epoxy-phenolic high-temperature thermal recovery surface pipeline, and relates to the technical field of petroleum thermal recovery pipelines. The pipeline is composed of an outer coating, an outer rubber layer, a skeleton layer, an inner rubber layer and an inner coating, and the outer coating and the inner coating have the same composition. The pipeline is prepared through the steps of primary mixing, vulcanization, secondary mixing, primary extrusion molding, knitting winding, secondary extrusion molding, impregnation and spraying. According to the modified epoxy-phenolic high-temperature thermal recovery surface pipeline, epoxy resin and phenolic resin in coating raw materials are subjected to modification treatment, the epoxy-modified phenolic resinobtained through modification has excellent heat resistance and abrasion resistance, and thus the pipeline can meet the challenges of sand storm invasion and large day and night temperature differenceand is suitable for being vigorously used and popularized in various oil fields in China. In the process, a cold vulcanization method is used for impregnating an extrusion-molded pipe blank during rubber vulcanization treatment, the two effects of cooling and vulcanization are achieved at the same time, and thus the production efficiency of the process is improved.

Description

technical field [0001] The invention relates to the technical field of petroleum thermal recovery, in particular to a modified epoxy phenolic high-temperature thermal recovery surface pipeline. Background technique [0002] Petroleum thermal recovery, also known as heavy oil thermal flooding, refers to a more effective method for heavy oil oilfields to increase the temperature of formation crude oil and reduce the viscosity of crude oil, thereby increasing the mobility ratio of formation oil and increasing the recovery factor. . [0003] In the process of petroleum thermal recovery, special pipelines are used to transport heavy oil. Such pipelines need to face the test of high temperature and oil pollution, and due to the particularity of the location of oilfields in my country, pipelines also have high temperature exposure, low temperature cracking, wind and sand intrusion and day and night The problem of large temperature difference, most of the heavy oil pipelines are vul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/12F16L57/06C08L7/00C08L13/00C08L45/02C08K13/02C08K3/04C08K3/34C08K5/103C08L23/22C08K3/22C09D163/00C09D161/06B29D23/00
CPCB29D23/001C08K2003/2206C08L7/00C08L13/00C08L23/22C08L2201/08C08L2203/18C09D161/06C09D163/00F16L9/123F16L57/06C08L45/02C08K13/02C08K3/04C08K3/34C08K5/103C08K3/22C08L61/06C08L63/00Y02P70/10
Inventor 姜波燕明亮李传明韩保锋陈广崧王强彭刚彭旭阳韩东于世强
Owner 胜利油田金岛工程安装有限责任公司
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