Swaged pipe fitting systems and methods

Patent metadata

Field	Value
Publication number	US-11378207-B2
Application number	US-202016953595-A
Country	US
Kind code	B2
Filing date	Nov 20, 2020
Priority date	Nov 22, 2019
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

Techniques for implementing and/or installing a system including pipe segment tubing and a swaged pipe fitting secured to the pipe segment tubing. The pipe segment tubing includes a carcass layer, an internal pressure sheath layer disposed around the carcass layer, a reinforcement layer disposed around the internal pressure sheath layer, and an outer sheath layer disposed around the reinforcement layer. The swaged pipe fitting includes a fitting body that defines a bore, an internal pressure sheath seal that seals the internal pressure sheath layer of the pipe segment tubing within the swaged pipe fitting, and a fitting jacket secured to the fitting body, in which the fitting jacket is conformally deformed around the pipe segment tubing to anchor the reinforcement layer of the pipe segment tubing in the swaged pipe fitting.

First claim

What is claimed is:

1. A system comprising:
pipe segment tubing, wherein the pipe segment tubing comprises:
a carcass layer;
an internal pressure sheath layer disposed around the carcass layer;
a reinforcement layer disposed around the internal pressure sheath layer; and
an outer sheath layer disposed around the reinforcement layer; and

a swaged pipe fitting secured to the pipe segment tubing, wherein the swaged pipe fitting comprises:
a fitting body that defines a bore;
an internal pressure sheath seal configured to seal the internal pressure sheath layer of the pipe segment tubing within the swaged pipe fitting;
a carcass isolating ring configured to electrically isolate the carcass layer of the pipe segment tubing in the swaged pipe fitting; and
a fitting jacket secured to the fitting body, wherein the fitting jacket is conformally deformed around the pipe segment tubing to anchor the reinforcement layer of the pipe segment tubing in the swaged pipe fitting.

2. The system of claim 1 , wherein the carcass layer of the pipe segment tubing comprises an interlocked metal layer.

3. The system of claim 1 , wherein the fitting jacket of the swaged pipe fitting is conformally deformed around the pipe segment tubing to form a seal between the outer sheath layer of the pipe segment tubing and the fitting jacket of the swaged pipe fitting to facilitate blocking ingress of external environmental fluid into the swaged pipe fitting.

4. The system of claim 1 , comprising a swage machine, wherein the swage machine comprises:
a grab plate configured to secure the swage machine to the fitting body of the swaged pipe fitting; and
a die plate comprising a set of die segments, wherein the swage machine is configured to move the grab plate and the die plate toward one another such that the set of die segments compresses the fitting jacket of the swaged pipe fitting radially inward.

5. The system of claim 1 , wherein:
the reinforcement layer defines a fluid conduit within a tubing annulus of the pipe segment; and
the swaged pipe fitting comprises:
a fluid path defined in the fitting body of the swaged pipe fitting such that the fluid path is fluidly connected to the fluid conduit in the tubing annulus of the pipe segment; and
a vent valve fluidly connected to the fluid path defined in the fitting body.

6. The system of claim 1 , wherein:
the swaged pipe fitting comprises a fitting connector secured to the fitting body to enable the swaged pipe fitting to be connected to another pipeline component; and
the internal pressure sheath seal is compressed against the internal pressure sheath layer of the pipe segment tubing due to compression between the fitting connector and the fitting body of the swaged pipe fitting.

7. The system of claim 1 , wherein the swaged pipe fitting comprises a grab sleeve inserted between the internal pressure sheath layer and the reinforcement layer of the pipe segment tubing before the fitting jacket is conformally deformed around the pipe segment tubing.

8. The system of claim 1 , wherein the fitting jacket of the swaged pipe fitting is conformally deformed around the pipe segment tubing to facilitate blocking ingress of external environmental fluid into the swaged pipe fitting and, thus, an annulus of the pipe segment tubing.

9. The system of claim 1 , wherein the outer sheath layer is an outermost layer of the pipe segment tubing.

10. A system comprising a swaged pipe fitting, wherein the swaged pipe fitting comprises:
a fitting body that defines a body bore;
a fitting connector configured to be secured to the fitting body to enable the swaged pipe fitting to be connected to another pipeline component;
a face seal configured to be compressed between the fitting body and the fitting connector;
an internal pressure sheath seal configured to be compressed against an internal pressure sheath layer of a pipe segment to seal the internal pressure sheath layer within the swaged pipe fitting;
a carcass isolating ring configured to electrically isolate a carcass layer of the pipe segment in the swaged pipe fitting; and
a fitting jacket secured to the fitting body, wherein the fitting jacket is configured to be conformally deformed around an outer sheath layer of the pipe segment to secure the swaged pipe fitting to the pipe segment and to seal the outer sheath layer of the pipe segment within the swaged pipe fitting.

11. The system of claim 10 , wherein the swaged pipe fitting comprises:
a spacer ring configured to directly abut an intermediate layer of the pipe segment to provide electrical continuity between the intermediate layer and the swaged pipe fitting; and
a vent valve configured to be fluidly connected to an annular gap defined in the pipe segment via a first fluid path formed through the fitting body and a second fluid path formed through the spacer ring.

12. The system of claim 10 , wherein the fitting jacket of the swaged pipe fitting is configured to be conformally deformed around the outer sheath layer of the pipe segment to facilitate blocking ingress of external environmental fluid into the swaged pipe fitting and, thus, a tubing annulus of the pipe segment.

13. The system of claim 10 , wherein the outer sheath layer is an outermost layer of the pipe segment.

Assignees

• Trinity Bay Equipment Holdings Llc

Inventors

• Dhagat Alok
• Hegler Matthew Allen
• Kalman Mark Douglas
• Lawrence Richard Charles
• Lewis Mikel Lee
• Matari Nader

Classifications

• F16L11/081 Primary

  comprising one or more layers of a helically wound cord or wire (in combination with braided layers F16L11/088) · CPC title

• F16L39/02

  for hoses · CPC title

• F16L33/01

  specially adapted for hoses having a multi-layer wall · CPC title

• F16L13/142 Primary

  with a sealing element inserted into the female part before crimping or rolling · CPC title

• F16L33/28

  for hoses with one end terminating in a radial flange or collar · CPC title