Flexible pipe joint
A method and apparatus for securing a flexible pipe to a further flexible pipe in an end-to-end configuration, wherein the apparatus includes and the method utilizes an elongate tubular element having a first and second end and an outer surface comprising a raised central region. At least one vent passage extends at least partially across the raised central region.
1. A pipeline system comprising a pipe connector, wherein the pipe connector comprises:
a connector body that defines a connector bore and has a raised central portion;
a first jacket secured to a first end of the raised central portion of the connector body such that the first jacket extends axially around a first side portion of the connector body to define a first connector annular region between a first inner surface of the first jacket and a first outer surface of the connector body, wherein the first jacket is configured to be swaged to plastically deform the first jacket radially inward such that the first jacket conforms to a first pipe disposed within the first connector annular region to facilitate securing the pipe connector to the first pipe;
a second jacket secured to a second end of the raised central portion of the connector body such that the second jacket extends axially around a second side portion of the connector body to define a second connector annular region between a second inner surface of the second jacket and a second outer surface of the connector body, wherein the second jacket is configured to be swaged to plastically deform the second jacket radially inward such that the second jacket conforms to a second pipe disposed within the second annular connector region to facilitate securing the second pipe to the first pipe directly using the pipe connector, and
a vent passage formed in the connector body such that the vent passage fluidly connects the first connector annular region and the second connector annular region in the pipe connector to facilitate fluidly connecting a first pipe annular region in the first pipe and a second pipe annular region in the second pipe.
2. The pipeline system of claim 1 , wherein the connector body of the pipe connector comprises:
an inner tube that defines the connector bore; and
a ring secured around a central region of the inner tube to form the raised central portion of the connector body.
3. The pipeline system of claim 2 , wherein the vent passage of the pipe connector comprises a first slot formed in the inner tube of the connector body, a second slot formed in the ring of the connector body, or both.
4. The pipeline system of claim 1 , wherein:
the first pipe comprises:
a first fluid retaining layer that defines a first pipe bore;
a first outer sheath layer formed around the first fluid retaining layer; and
a first armour layer formed between the first fluid retaining layer and the first outer sheath layer in the first pipe annular region of the first pipe; and
the second pipe comprises:
a second fluid retaining layer that defines a second pipe bore;
a second outer sheath layer formed around the second fluid retaining layer; and
a second armour layer formed between the second fluid retaining layer and the second outer sheath layer in the second pipe annular region of the second pipe.
5. The pipeline system of claim 4 , wherein:
the first armour layer comprises a first one or more helically wound strips; and
the second armour layer comprises a second one or more helically would strips.
6. The pipeline system of claim 1 , wherein:
the first pipe comprises a first flexible pipe; and
the second pipe comprises a second flexible pipe.
7. The pipeline system of claim 1 , wherein:
each open end of the connector body of the pipe connector is tapered;
a first open end of the first jacket is tapered; and
a second open end of the second jacket is tapered.
8. The pipeline system of claim 1 , wherein the raised central portion of the connector body comprises a central cutout configured to aid in handling of the pipe connector.
9. The pipeline system of claim 1 , wherein the vent passage in the pipe connector has a helical shape.
10. A method of manufacturing a pipe connector, comprising:
forming a connector body of the pipe connector with a raised central portion to define a connector bore;
securing a first jacket to a first end of the raised central portion of the connector body such that the first jacket extends axially around a first side portion of the connector body to define a first connector annular region between a first inner surface of the first jacket and a first outer surface of the connector body that enables the first jacket to be deformed radially inward such that the first jacket conforms to a first pipe disposed within the first connector annular region to facilitate securing the pipe connector to the first pipe; and
securing a second jacket to a second end of the raised central portion of the connector body such that the second jacket extends axially around a second side portion of the connector body to define a second connector annular region between a second inner surface of the second jacket and a second outer surface of the connector body that enables the second jacket to be deformed radially inward such that the second jacket conforms to a second pipe disposed within the second annular connector region to facilitate securing the pipe connector to the second pipe;
wherein forming the connector body comprises:
forming a cutout in the raised central portion of the connector body to facilitate handling the pipe connector; and
forming a vent passage in the connector body such that the vent passage fluidly connects the first connector annular region and the second connector annular region in the pipe connector to facilitate fluidly connecting a first pipe annular region in the first pipe and a second pipe annular region in the second pipe.
11. The method of claim 10 , wherein forming the connector body comprises:
forming an inner tube to define the connector bore; and
securing a ring around a central region of the inner tube to form the raised central portion of the connector body.
12. The method of claim 11 , wherein forming the vent passage in the connector body comprises:
forming a first slot in the inner tube of the connector body;
forming a second slot in the ring of the connector body; or
both.
13. The method of claim 10 , wherein forming the connector body comprises forming the connector body with tapered open ends.
14. The method of claim 10 , wherein forming the vent passage in the connector body comprises forming the vent passage with a helical shape.
15. A pipeline system comprising a pipe connector, wherein the pipe connector comprises:
an inner tube that defines a connector bore;
a ring secured circumferentially around the inner tube;
a jacket secured to end of the ring such that the jacket extends axially around the inner tube to define a connector annular region between an inner surface of the jacket and an outer surface of the inner tube, wherein the jacket is configured to be swaged to plastically deform the jacket radially inward such that the jacket conforms to a pipe disposed within the connector annular region to facilitate securing the pipe connector to the pipe;
another jacket secured to an opposite end of the ring such that the another jacket extends around the inner tube to define another connector annular region between another inner surface of the another jacket and another outer surface of the inner tube, wherein the another jacket is configured to be swaged to plastically deform the another jacket radially inward such that the another jacket conforms to another pipe disposed within the another connector annular region to facilitate securing the pipe connector to the another pipe; and
a vent passage formed through the inner tube, the ring, or both such that the vent passage is fluidly connected to the connector annular region in the pipe connector to facilitate venting fluid in a pipe annular region of the pipe.
16. The pipeline system of claim 15 , wherein the pipe comprises:
a fluid retaining layer that defines a pipe bore;
an outer sheath layer formed around the fluid retaining layer; and
an armour layer formed between the fluid retaining layer and the outer sheath layer in the pipe annular region of the pipe.
17. The pipeline system of claim 16 , wherein the armour layer of the pipe comprises one or more helically wound strips.
18. The pipeline system of claim 15 , wherein the vent passage in the pipe connector has a helical shape.
19. The pipeline system of claim 15 , wherein the vent passage is formed through the inner tube, the ring, or both to fluidly connect the connector annular region in the pipe connector to the another connector annular region in the pipe connector.