Formula and preparation method of petroleum perforating bullet sealing adhesive

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, ...

Examples

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.

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, ...

Examples

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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