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Three-channel continuous flexible composite pipe connection connector and mounting method

A technology of flexible composite pipes and connecting joints, which is used in drilling pipes, casings, and earth-moving drilling and mining, etc., can solve the problems that three-channel continuous flexible composite pipes cannot be connected, and achieve the effect of ensuring sealing performance.

Active Publication Date: 2018-05-08
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the invention is to overcome the problem that the three-channel continuous flexible composite pipe cannot be connected

Method used

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  • Three-channel continuous flexible composite pipe connection connector and mounting method
  • Three-channel continuous flexible composite pipe connection connector and mounting method
  • Three-channel continuous flexible composite pipe connection connector and mounting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This example provides figure 1 The shown connection joint of a three-channel continuous flexible composite pipe includes a connector 2, and the ends of two sections of three-channel continuous flexible composite pipe 1 are respectively inserted into the connector 2 and connected through the connector 2.

[0032] The ends of the two sections of three-channel continuous flexible composite pipe 1 are respectively inserted into the connector 2, and sealed by a sealing ring in the connector 2. This connector solves the problem of connecting two three-channel continuous flexible composite pipes and ensures the three channels Independent.

[0033] Such as figure 2 As shown, the three-channel continuous flexible composite pipe connection joint also includes a movable joint 8 and a fastening pressure ring 10, and the fastening pressure ring 10 is worn on the three-channel continuous flexible composite pipe 1 and is in tight contact with the end surface of the connection head 2...

Embodiment 2

[0036] On the basis of Example 1, such as image 3 with Figure 4 As shown, the fastening pressure ring 10 is composed of a ring-shaped base 10.4 and a plurality of strip-shaped arc-shaped plates 10.1, and a plurality of strip-shaped arc-shaped plates 10.1 surround a circle, and one end thereof is connected to the ring-shaped base 10.4 and connected A plurality of sealing ring grooves 10.3 are provided along the circumferential direction in part, and threads are provided at the other end, and a row of screw holes 10.2 are provided in each strip arc-shaped plate 10.1 along the length direction.

[0037] The fastening pressure ring 10 is worn on the three-channel continuous flexible composite pipe, and is closely attached to the three-channel composite pipe through the screw 6 to increase the axial expansion and contraction.

Embodiment 3

[0039] On the basis of Example 2, such as image 3 with Figure 4 As shown, the ring-shaped base 10.4 and the strip-shaped arc-shaped plate 10.1 are integrally formed to form a fastening pressure ring 10, and the three-channel continuous flexible composite pipe 1 passes through the fastening pressure ring 10 and extends into the connector 2, and the movable connector 8 Wear it on the outer surface of the fastening pressure ring 10 and the connector 2. It also includes a protective tube 3, which is sheathed on the outer surface of the strip-shaped arc-shaped plate 10.1 of the fastening pressure ring 10, and fastened with the threads on the strip-shaped arc-shaped plate 10.1. A copper pressure ring 5 sleeved on the three-channel continuous flexible composite pipe 1 is provided between the protection cylinder 3 and the fastening pressure ring 10 . A seal ring II9 is ​​provided between the movable joint 8 and the fastening pressure ring 10, a seal ring I4 is provided between the...

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Abstract

The invention provides a three-channel continuous flexible composite pipe connection connector and a mounting method. Two independent three-channel continuous flexible composite pipes are connected, three pipelines of each composite pipe are maintained to be independent mutually, the purposes of splicing of the pipelines and reutilization are achieved, meanwhile, the unique structure of the connection connector can ensure that the two connected three-channel continuous flexible composite pipes are connected in a sealed mode, the sealing property of the whole structure is ensured, and accordingly the purpose of elaborate water injection is achieved.

Description

technical field [0001] The invention belongs to the field of oil recovery technology, and in particular relates to a three-channel continuous flexible composite pipe connection joint and an installation method. Background technique [0002] With the continuous deepening of oilfield development, the formation energy of different oil layers decreases rapidly and there are great differences, which seriously affects the continuous and efficient development of oilfields. Supplementing formation energy by water injection in different oil layers is an effective means to enhance oil recovery. Currently, the commonly used separate injection processes mainly include oil casing separate injection, bridge eccentric separate injection, bridge type concentric separate injection, etc. With the refinement of oilfield management The existing dispensing process has more or less problems such as high measurement and adjustment resistance rate, long measurement and adjustment cycle, and low adj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/02E21B43/20
CPCE21B17/021E21B43/20Y02A20/20
Inventor 何汝贤王守虎姚斌申晓莉王俊涛王薇王晓娥
Owner PETROCHINA CO LTD
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