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Expansion packer rubber barrel

A packer and expansion technology, which is applied in sealing/isolation, wellbore/well parts, earthwork drilling and production, etc., can solve the problems of small expansion and low pressure bearing, achieve small residual deformation and prolong service life , High tensile strength effect

Inactive Publication Date: 2014-03-26
DAQING HAOYUN RUBBER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an expandable packer rubber sleeve to solve the problems of small expansion and low pressure bearing of the existing packer rubber sleeve

Method used

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  • Expansion packer rubber barrel
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] figure 1 It is a schematic structural diagram of the present invention. As shown in the figure, the expansion packer rubber sleeve includes a rubber sleeve 1, a metal connecting pipe 2 and an annular ring 3. The glue is fixed together, and the two ends of the rubber tube 1 are fastened with annular rings 3 to prevent the rubber tube 1 from sliding. In order to fix the annular ring 3 , the outer wall of the metal connecting pipe 2 is provided with an annular groove 5 , and the annular ring 3 is stuck in the annular groove 5 . The rubber tube 1 is embedded with carbon fiber cord fabric 4, and the tensile strength of the selected carbon fiber cord fabric 4 is 380N / mm 2 , The carbon fiber diameter is 0.5mm. The carbon fiber cord fabric is used to replace the traditional steel wire. Carbon fiber cord fabric is favored and concerned for its soft texture, corrosion resistance, hydrogen sulfide gas resistance, high tensile strength, small residual deformation and many fatigue...

Embodiment 2

[0015] figure 1 It is a schematic structural diagram of the present invention. As shown in the figure, the expansion packer rubber sleeve includes a rubber sleeve 1, a metal connecting pipe 2 and an annular ring 3. The glue is fixed together, and the two ends of the rubber tube 1 are fastened with annular rings 3 to prevent the rubber tube 1 from sliding. In order to fix the annular ring 3 , the outer wall of the metal connecting pipe 2 is provided with an annular groove 5 , and the annular ring 3 is stuck in the annular groove 5 . The rubber tube 1 is embedded with carbon fiber cord fabric 4, and the tensile strength of the selected carbon fiber cord fabric 4 is 450N / mm 2 , The carbon fiber diameter is 0.65mm. The carbon fiber cord fabric is used to replace the traditional steel wire. Carbon fiber cord fabric is favored and concerned for its soft texture, corrosion resistance, hydrogen sulfide gas resistance, high tensile strength, small residual deformation and many fatigu...

Embodiment 3

[0018] figure 1 It is a schematic structural diagram of the present invention. As shown in the figure, the expansion packer rubber sleeve includes a rubber sleeve 1, a metal connecting pipe 2 and an annular ring 3. The glue is fixed together, and the two ends of the rubber tube 1 are fastened with annular rings 3 to prevent the rubber tube 1 from sliding. In order to fix the annular ring 3 , the outer wall of the metal connecting pipe 2 is provided with an annular groove 5 , and the annular ring 3 is stuck in the annular groove 5 . The rubber tube 1 is embedded with carbon fiber cord fabric 4, and the tensile strength of the selected carbon fiber cord fabric 4 is 650N / mm 2 , the carbon fiber diameter is 1mm. The carbon fiber cord fabric is used to replace the traditional steel wire. Carbon fiber cord fabric is favored and concerned for its soft texture, corrosion resistance, hydrogen sulfide gas resistance, high tensile strength, small residual deformation and many fatigue t...

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Abstract

The invention relates to an expansion packer rubber barrel. The expansion packer rubber barrel comprises a rubber barrel body (1), metal connecting pipes (2) and annular rings (3), wherein the two ends of the rubber barrel body (1) are fixed to the metal connecting pipes (2) through heat vulcanization technology glue, the two ends of the rubber barrel body (1) are fastened through the annular rings (3), and carbon fiber cord fabric (4) is buried in the rubber barrel body (1). The carbon fiber cord fabric high in tensile strength is buried in the rubber barrel body and is very popular and catches close attention because of having the advantages of being soft in texture, resistant to corrosion, very thin in sheet material, high in tensile strength and the like. Compared with an existing method that steel wires are buried in the rubber barrel body, the bearing capacity and expansion amount of the rubber barrel are greatly improved, the service life of the rubber barrel at high temperature is greatly prolonged, the phenomenon that because the steel wires are high in to rigidity, the components are damaged easily is avoided, and the expansion packer rubber barrel is simple in machining technology and easy to popularize and apply.

Description

technical field [0001] The invention belongs to the field of petroleum machinery and relates to an expansion packer rubber cylinder. Background technique [0002] The packer is an important downhole tool in the downhole construction and completion process of oil development, drilling and completion. It is the most important downhole tool. At present, this kind of packer used in China is mainly based on the wire curtain structure and the steel wire structure, which have certain limitations in pressure bearing and expansion of the rubber cylinder, while those with high pressure bearing and large expansion The steel expansion packer has relatively complicated processing technology and high processing cost, so its popularization and application are limited. Therefore, it is necessary to improve the packer rubber cartridge. Contents of the invention [0003] The object of the present invention is to provide an expandable packer rubber sleeve, which solves the problems of sm...

Claims

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Application Information

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IPC IPC(8): E21B33/127
Inventor 汤文俊
Owner DAQING HAOYUN RUBBER PROD
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