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Four-season universal test sealant and preparation method and production device thereof

A technology for general testing and production equipment, applied in chemical instruments and methods, plastic/resin/wax insulators, organic insulators, etc. Shear stability, less decomposition, good hydrolysis stability

Pending Publication Date: 2018-06-01
DAQING HIGH TECH DISTRICT DINGJIU CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the north, around April 15th and October 15th of the lunar calendar, there is an alternation of cold and summer seasons. During these two periods of climate change, there is a large temperature difference. If the sealant is used in winter, its fluidity is too large when the temperature is high during the day, and the sealant is easy to fall off, and the sealing effect cannot be achieved; The agglomeration falls off, and the sealing effect cannot be achieved

Method used

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  • Four-season universal test sealant and preparation method and production device thereof
  • Four-season universal test sealant and preparation method and production device thereof
  • Four-season universal test sealant and preparation method and production device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The four-season general-purpose test sealant of the present invention is composed of the following materials in proportion by weight: 10 parts of medium molecular polyisobutylene, 5 parts of low molecular polyisobutylene, 1 part of fumed silica, 10 parts of diethyl silicone oil, polyα- 20 parts of olefin synthetic oil, 1 part of diester, 0.1 part of antioxidant, 0.1 part of rust inhibitor, and 1 part of pour point depressant.

[0055] The method for preparing the above-mentioned four-season universal test sealant is as follows:

[0056] a. Preparation of the first base agent, disperse and react medium-molecular-weight polyisobutylene, low-molecular-weight polyisobutylene, and diethyl silicone oil at a constant temperature of 160°C with a stirring speed of 90 r / min for 2 hours at a high speed to obtain the first base agent preparation;

[0057] b. Preparation of the second base agent. After mixing the antioxidant, diester, and fumed silica, keep the temperature at 100° C...

Embodiment 2

[0061] The four-season general-purpose test sealant of the present invention is composed of the following materials in proportion by weight: 30 parts of medium molecular polyisobutylene, 20 parts of low molecular polyisobutylene, 10 parts of fumed silica, 30 parts of diethyl silicone oil, polyα- 40 parts of olefin synthetic oil, 20 parts of diester, 2.0 parts of antioxidant, 2.0 parts of rust inhibitor, 5 parts of pour point depressant.

[0062] The method for preparing the above-mentioned four-season universal test sealant is as follows:

[0063] a. Preparation of the first base agent, disperse and react medium-molecular-weight polyisobutylene, low-molecular-weight polyisobutylene, and diethyl silicone oil at a constant temperature of 200°C with a stirring speed of 100 r / min for 4 hours at a high speed to obtain the first base agent preparation;

[0064] b. Preparation of the second base agent, after mixing the antioxidant, diester, and fumed silica, at a constant temperature...

Embodiment 3

[0068] The four-season general-purpose test sealant of the present invention is composed of the following materials in proportion by weight: 15 parts of medium molecular polyisobutylene, 10 parts of low molecular polyisobutylene, 2 parts of fumed silica, 15 parts of diethyl silicone oil, polyα-olefin 25 parts of synthetic oil, 10 parts of diester, 0.5 part of antioxidant, 0.5 part of rust inhibitor, 1 part of pour point depressant.

[0069] The method for preparing the above-mentioned four-season universal test sealant is as follows:

[0070] a. Preparation of the first base agent, disperse and react medium-molecular-weight polyisobutylene, low-molecular-weight polyisobutylene, and diethyl silicone oil at a constant temperature of 180°C with a stirring speed of 95 r / min for 3 hours at a high speed to obtain the first base agent preparation;

[0071] b. Preparation of the second base agent. After mixing the antioxidant, diester, and fumed silica, keep the temperature at 110° C....

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Abstract

The invention discloses a four-season universal test sealant and a preparation method and production device thereof and relates to a sealant and a production method and device of the sealant. The sealant is composed of middle molecular polyisobutylene, low molecular polyisobutylene, fumed silica, diethyl silicone oil, poly-alpha-olefin synthetic oil, diester, an antioxidant, a rust inhibitor and apour point depressant. The production device is adjusted according to processes of the production method. The four-season universal test sealant has the advantages of simple processes, a low economiccost, good sealing performances, large viscosity under high temperature conditions and good fluidity under low temperature conditions, is suitable for summer and winter, has large viscosity and goodfluidity when the diurnal temperature variation is large since the turn of the winter and summer, has good viscosity and good fluidity, can be used in all seasons and has a large application range.

Description

technical field [0001] The invention relates to a sealant, in particular to a four-season universal test sealant, a preparation method and a production device. Background technique [0002] Sealants are widely used in equipment sealing of oil and gas wells. For example, when oil, gas and water wells are subjected to pressure logging or perforation, ultra-high pressure grease injection pumps are used to inject sealants into high-pressure blowout preventers, so as to seal the cables at the wellhead. In the north, around April 15th and October 15th of the lunar calendar, there is an alternation of cold and summer seasons. During these two periods of climate change, there is a large temperature difference. If the sealant is used in winter, its fluidity is too large when the temperature is high during the day, and the sealant is easy to fall off, and the sealing effect cannot be achieved; The agglomeration falls off, and the sealing effect cannot be achieved. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00C08L23/20C08L83/04C08K13/02C08K3/36C08K5/134H01B3/44C09K3/10
CPCH01B3/441C09K3/1006C08L23/00C08K2201/011C08L2205/025C08L2205/035C08L2201/08C08L2201/14C08L23/20C08L83/04C08K13/02C08K3/36C08K5/1345
Inventor 贾博肖勇谢亚东殷宗利李长亮
Owner DAQING HIGH TECH DISTRICT DINGJIU CHEM TECH
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