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A kind of sealant used in lining sliding sleeve sealing system and preparation method thereof

A sealing system and sealant technology, used in adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of poor sealing effect, unstable coating adhesion, high temperature flow, etc. Production efficiency and product stability, improving compatibility, ensuring the effect of integrity

Active Publication Date: 2022-04-05
海隆石油产品技术服务(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adhesives currently used often suffer from high-temperature flow, poor sealing effect, and unstable adhesion with the coating.

Method used

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  • A kind of sealant used in lining sliding sleeve sealing system and preparation method thereof
  • A kind of sealant used in lining sliding sleeve sealing system and preparation method thereof
  • A kind of sealant used in lining sliding sleeve sealing system and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A sealant used in a liner sliding sleeve sealing system, including A component and B component, the mass percentage of each raw material component:

[0042] A component:

[0043]

[0044]

[0045] Component B:

[0046]

[0047] The preparation method of the sealant:

[0048] Preparation method of component A:

[0049] 1. Add the phenolic resin and water absorbing agent to the reaction kettle and stir for 1 hour.

[0050] 2. Slowly drop the silane coupling agent and 50% by mass of diacid chloride into the reaction kettle, dropwise for 1 hour, and continue to stir for 0.5 hour after the dropwise addition is completed.

[0051] 3. Add the liquid polysulfide rubber into the reaction kettle and stir for 0.5 hours.

[0052] 4. The remaining diacid chloride was slowly added dropwise into the reaction kettle, the dropwise addition time was 1 hour, and the stirring was continued for 0.5 hour after the dropwise addition was completed.

[0053] 5. Add the thixotropic...

Embodiment 2

[0058] A sealant used in a lining sliding sleeve sealing system, including A component and B component, the mass percentage of each raw material component:

[0059] A component:

[0060]

[0061] Component B:

[0062]

[0063] The preparation method of component A and component B and the sealant is the same as that in Example 1.

Embodiment 3

[0065] A sealant used in the lining sliding sleeve sealing system, including A component and B component, the mass percentage of each raw material component:

[0066] A component:

[0067]

[0068]

[0069] B component:

[0070] Basic metal oxide 20%; With embodiment 1

[0071] Catalyst 10%; With embodiment 1

[0072] Epoxy diluent 40%; With embodiment 1

[0073] Thixotropic agent 2%; With embodiment 1

[0074] Thickening filler 28%; With embodiment 1;

[0075] The preparation method of component A and component B and the sealant is the same as that in Example 1.

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Abstract

The invention relates to the technical field of petroleum pipelines, in particular to a sealant used in a lining sliding sleeve sealing system and a preparation method thereof, including component A and component B, the mass percentage of each raw material in component A For: liquid phenolic resin 30‑70%, water absorbent 3‑10%, silane coupling agent 3‑5%, diacid chloride 3‑5%, liquid polysulfide rubber 10‑40%, thixotropic agent 2‑5%, Carbon black 1‑5%; the mass percent of each raw material in the described B component is: basic metal oxide 20‑30%, catalyst 5‑10%, epoxy diluent 30‑40%, thixotropic agent 2‑ 5%, thickening filler 15‑30%. The sealant used in the sealing system of the lining sliding sleeve of the present invention has good matching performance, high bonding strength and good toughness, the product is not easy to flow at high temperature, and the integrity of the pipeline sealing is guaranteed.

Description

technical field [0001] The invention relates to the technical field of petroleum conveying pipelines, in particular to a sealant used in an inner lining sliding sleeve sealing system and a preparation method thereof. Background technique [0002] The quality of the pipeline connection during the construction of the oil pipeline has an important impact on the service life and operating efficiency of the entire pipeline. Ordinary pipelines can be connected by welding. Due to the harsh service conditions of the oil pipeline, it needs to withstand high temperature and high pressure. The interior of the pipeline needs to be protected by a high Tg phenolic epoxy coating. The coating system is very easy to fail under the high temperature of welding. Hidden danger. [0003] In order to solve this problem, the liner sliding sleeve connection technology has been widely used in this field. This technology is introduced in Chinese patent document CN105423009A (Application No. 201410446...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J187/00C09J11/06C09J11/04C08G81/00
CPCC09J187/005C09J11/06C09J11/04C08G81/00C08K2003/2262C08K2003/2234C08L77/00C08K7/24C08K3/04C08K3/22C08K7/00C08K13/04C08K3/36C08K3/34
Inventor 仇磊孙健
Owner 海隆石油产品技术服务(上海)有限公司
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