System and method for terminating tubing
View Patent ↗A technique is provided for terminating tubing. In the technique, a tubing termination assembly is used to terminate control line tubing from a downhole safety valve at a wellhead component. The tubing termination assembly utilizes a seal ring to form a seal around control line tubing extending from a port through a wellhead component. A seating surface is provided in the seal ring, rather than in the wellhead component, to which a seal member is abutted to form the seal with the control line tubing. The seal ring also comprises a threaded portion to enable a threaded member to urge the seal member against the seating surface.
1. A well completion system, comprising:
a well completion member having a port extending therethrough to enable a first tubing to pass from an inner bore of the well completion member to an external surface of the well completion member; and
a tubing termination assembly, comprising:
a fastener adapted to secure the tubing termination assembly to the well completion member, and
a seating surface adapted to cooperate with a sealing member to form a seal around the first tubing;
a seal ring having a seal ring port extending through the seal ring to enable the first tubing to extend through the seal ring; and
wherein the seal ring port defines the seating surface.
2. The well completion system as recited in claim 1 , wherein the seal ring comprises a threaded portion disposed within the seal ring port.
3. The well completion system as recited in claim 2 , wherein the tubing termination assembly comprises a threaded member adapted to thread into the threaded portion of the seal ring to urge the sealing member against the seating surface of the seal ring.
4. The well completion system as recited in claim 1 , wherein the fastener comprises a plurality of fasteners oriented around the port extending through the well completion member.
5. The well completion system as recited in claim 4 , wherein each of the plurality of fasteners comprises a threaded member adapted for threaded engagement with a corresponding threaded portion of the well completion member.
6. The well completion system as recited in claim 1 , wherein the tubing termination assembly comprises a connector adapted to connect a second tubing to the tubing termination assembly and to place the second tubing in communication with the first tubing.
7. The well completion system as recited in claim 1 , wherein the well completion member is a tubing head adapted to support a tubing hanger.
8. The well completion system as recited in claim 1 , wherein the first tubing is a control line for a downhole safety valve.