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Nonmetallic flexible composite continuous pipe oil extraction device

An oil production device, non-metallic technology, applied in the field of non-metallic flexible composite coiled tubing oil production devices, can solve the problems of heavy construction work, high labor intensity, and easy corrosion of metal pipes, and achieve low operating cost, high operating efficiency, and reduced The effect of labor intensity

Active Publication Date: 2015-04-01
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems that the metal pipes in the existing oil production equipment are easy to corrode, and need to be connected by a single piece, resulting in a large amount of construction work and high labor intensity.

Method used

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  • Nonmetallic flexible composite continuous pipe oil extraction device
  • Nonmetallic flexible composite continuous pipe oil extraction device

Examples

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Effect test

Embodiment 1

[0029] In order to overcome the problems that the metal pipes in the existing oil production equipment are easy to corrode and need to be connected by a single piece, the construction workload is large and the labor intensity is high, this embodiment provides a method such as figure 1 The shown non-metallic flexible composite coiled tubing oil production device includes a wellhead hanger 1, and a conversion joint 4, an oil well pump 5, a screen pipe 6 and a plug 7 connected sequentially from top to bottom, and the oil well pump 5 passes through the oil well The rod 3 is connected to the wellhead hanger 1 , and the non-metallic composite pipe 2 is connected between the mouth hanger 1 and the conversion joint 4 , and the sucker rod 3 passes through the non-metallic composite pipe 2 .

[0030] The wellhead hanger 1 and the non-metallic composite pipe 2 are processed and connected by vulcanization, and the wellhead hanger 1 and the non-metallic composite pipe 2 are vulcanized and b...

Embodiment 2

[0034] On the basis of Example 1, the non-metal composite pipe 2 is composed of a protective layer 21, a reinforcing layer 22, a tensile layer 23, and a steel wire rope 24; the protective layer 21, the reinforcing layer 22 and the tensile layer 23 are formed from the outside to The steel wire ropes 24 are distributed around the outside of the reinforcing layer 22.

[0035] Wherein, the protective layer 21 is made of rubber, which is extruded and coated on the outside of the reinforcement layer 22, and is the outermost layer of shield of the non-metallic composite pipe 2, which comprehensively protects all components inside the pipe, and has good wear resistance and corrosion resistance.

[0036] The reinforcing layer 22 is made of glass fiber, and the reinforcing layer 22 is a multi-strand braided wire mesh structure, which has high tensile strength and tear resistance, can greatly improve the internal pressure resistance of the pipe wall, and the compressive strength can be ...

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Abstract

The invention belongs to the technical field of mechanical oil extraction, and particularly provides a nonmetallic flexible composite continuous pipe oil extraction device which comprises a wellhead hanger, a conversion joint, an oil pump, a screen pipe and a screwed plug. The conversion joint, the oil pump, the screen pipe and the screwed plug are connected sequentially from top to bottom. The oil pump is connected with the wellhead hanger through an oil pumping rod, a nonmetallic composite pipe is connected between the wellhead hanger and the conversion joint, and the oil pumping rod penetrates the inside of the nonmetallic composite pipe. A metal oil pipe is replaced by the nonmetallic composite pipe, so that construction workload is lowered substantially, labor intensity of construction personnel is lowered, anticorrosion capability of a pipe column is improved, normal production time is increased, and production pipe column structure is simplified.

Description

technical field [0001] The invention belongs to the technical field of mechanical oil recovery, and in particular relates to a non-metallic flexible composite coiled tubing oil recovery device. Background technique [0002] At present, the rod oil production device in the oil field needs to use the metal oil pipe as a channel to transport the liquid to the ground. When the metal oil pipe is in operation, a single connection is required, the construction workload is large, the labor intensity is high, and the construction period is long; at the same time, the metal oil pipe When working downhole, it is easily corroded by downhole fluid, and the service time will be shortened accordingly. [0003] Non-metallic composite pipes are currently widely used in oilfield gathering and transportation pipelines, water injection pipelines and natural gas pipelines. The biggest advantages are fast operation speed, convenient construction, corrosion resistance, and effective cost reduction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00
CPCE21B17/00E21B43/00
Inventor 刘天宇曾亚勤黄伟甘庆明李明辛宏张磊杨海涛韩二涛
Owner PETROCHINA CO LTD
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