Formula and preparation method of petroleum perforating bullet sealing adhesive

A preparation method and technology of perforating bullets, applied in the direction of non-polymer adhesive additives, adhesive additives, etc., can solve the problems of drug-type cover easy to fall off, long curing time, poor bonding effect, etc. Cover phenomenon, good sealing effect, high bonding effect

Inactive Publication Date: 2019-12-03
DAQING PETROLEUM ADMINISTRATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at overcoming the problem of long curing time and poor bonding effect of the existing sealant in the background technology, and provides a formula for petroleum perforating bullet sealant

Method used

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  • Formula and preparation method of petroleum perforating bullet sealing adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Mix the weighed adhesive 3M Scotch-Weld CA40H 280 g and silver powder 3 g in proportion. The temperature of the mixing process is 20°C-25°C and the humidity is 40-60%. After mixing and stirring evenly, the shell to be bonded and Smear the joint part of the drug-type cover to form a ring-shaped adhesive tape with a thickness of more than 0.5 mm for bonding.

Embodiment 2

[0015] Mix the weighed adhesive 3M Scotch-Weld CA40H 280 g and silver powder 5 g in proportion. The temperature of the mixing process is 20°C-25°C and the humidity is 40-60%. After mixing and stirring evenly, the shell to be bonded and Smear the joint part of the drug-type cover to form a ring-shaped adhesive tape with a thickness of more than 0.5 mm for bonding.

Embodiment 3

[0017] Mix the weighed adhesive 3M Scotch-Weld CA40H 280 g and silver powder 4 g in proportion. The temperature of the mixing process is 20°C-25°C and the humidity is 40-60%. After mixing and stirring evenly, the shell to be bonded and Smear the joint part of the drug-type cover to form a ring-shaped adhesive tape with a thickness of more than 0.5 mm for bonding.

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Abstract

The invention relates to a formula of a petroleum perforating bullet sealing adhesive. The formula is mainly used for solving problems in the prior art that the curing time of an existing sealing adhesive is long, bonding effect is poor, and falling of charge liners is easily caused. The petroleum perforating bullet sealing adhesive comprises, by weight, an adhesive and silver powder at a ratio of280:3-5. A preparation method of the petroleum perforating bullet sealing adhesive comprises following steps: proportionally and uniformly mixing and stirring the weighed adhesive CA40H and silver powder, and smearing the bonding part of a shell to be bonded with a charge liner to form an annular adhesive tape with the thickness of more than 0.5 mm for bonding. According to the petroleum perforating bullet sealing adhesive formula, the curing time can be shortened, the bonding effect is good, the falling problem of charge liners is solved, and a solid foundation is laid for subsequent production.

Description

technical field [0001] The invention relates to a material in the field of oil field testing, in particular to a formula and a preparation method of sealing glue for petroleum perforating bullets. Background technique [0002] Petroleum perforating bullets are mainly composed of three parts: liner, explosive, and casing. [0003] After several generations of continuous exploration and practice, the manufacturing technology and equipment of perforating bullets have gradually developed from simple manual operation to semi-automation and then to automation. In particular, the oil perforating bullet compression technology, from the initial casting technology to the manual molding technology, has now developed into the integrated technology of oil perforating bullet compression compression, which requires tooling, molds, The equipment includes a middle mold, a centering sleeve, a punch, a set of tooling, and a four-column hydraulic press. The tooling is divided into two parts, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/04
CPCC08K2003/0806C09J11/04
Inventor 张兴民王赫蒋立云刘梅
Owner DAQING PETROLEUM ADMINISTRATION
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