Wellhead control line deployment involves replacing the seat/retainer plate of a master valve of the wellhead with a modified retainer plate. The retainer plate defines a first port communicating from a central opening of the plate to outside the plate. A modified bonnet installs on the master valve
Wellhead control line deployment involves replacing the seat/retainer plate of a master valve of the wellhead with a modified retainer plate. The retainer plate defines a first port communicating from a central opening of the plate to outside the plate. A modified bonnet installs on the master valve, and the bonnet has two ports, one communicating with the first port in the retainer plate and the second communicating with a needle valve port. The communication ports are linked by a tube with outside diameter seals that inserts between the retainer plate and the bonnet. A control line hanger can be retained by locking into an adapter sleeve or directly in the back-pressure valve threads of a tubing hanger. The adapter sleeve can be attached to the retainer plate or have a collet to snap into the back-pressure valve threads of the tubing hanger.
대표청구항▼
1. A wellhead control line deployment apparatus supporting a control line below a valve mechanism of a wellhead and through a head adapter and a casing head of the wellhead, the apparatus comprising: a wellhead component installing above the head adapter and the casing head on the wellhead, the well
1. A wellhead control line deployment apparatus supporting a control line below a valve mechanism of a wellhead and through a head adapter and a casing head of the wellhead, the apparatus comprising: a wellhead component installing above the head adapter and the casing head on the wellhead, the wellhead component having a first bore and having at least one lock screw disposed in a side of the first bore, the wellhead component having a first port communicating the first bore outside the wellhead component; anda control line hanger installing at least partially in the first bore of the wellhead component, the at least one lock screw engaging the control line hanger when installed therein, the control line hanger having a hanger body defining a second bore from a first end to a second end, the hanger body having a second port with an inlet and an outlet, the inlet communicating with the first port on the component; anda connector connected to the control line, the connector supported on the second end of the hanger body and connecting the outlet of the hanger body to the control line, wherein the connector hangs the control line along an axis of the second bore and defines one or more flutes for communicating flow therethrough. 2. The apparatus of claim 1, wherein the wellhead component comprises an adapter spool installed on the head adapter and supporting a master valve having the valve mechanism thereabove. 3. The apparatus of claim 1, wherein the wellhead component comprises a master valve having the valve mechanism and installed on the head adapter. 4. The apparatus of claim 1, wherein the control line hanger comprises first and second annular seals disposed thereabout, the first and second annular seals having the inlet of the second port disposed therebetween and engaging an internal wall of the first bore of the wellhead component. 5. The apparatus of claim 1, wherein the wellhead component defines a first shoulder in the first bore, and wherein the hanger body defines a second shoulder engaging the first shoulder when installed in the wellhead component. 6. The apparatus of claim 5, wherein the second shoulder is disposed thereabout between the first and second ends of the hanger body. 7. The apparatus of claim 5, wherein the at least one lock screw engages the first end of the control line hanger. 8. The apparatus of claim 1, wherein the hanger body defines a groove disposed between the first and second ends, the at least one lock screw engaging in the groove of the control line hanger installed in the wellhead component. 9. The apparatus of claim 1, wherein the connector comprises a wet mate connector supported by fluted connector arms to the second end of the hanger body. 10. The apparatus of claim 9, wherein the connector comprises a conduit connecting the outlet of the second port with the wet mate connector. 11. A method of supporting a new control line at a wellhead to a downhole tool, the wellhead having a casing head, a head adapter, and a master valve disposed on top of one another, the method comprising: removing the master valve from the head adapter of the wellhead;installing a wellhead component on the head adapter of the wellhead, the wellhead component having a side port communicating a first internal bore outside the wellhead component;connecting a control line to a control line hanger by supporting a wet mate connector with fluted connector arms to an end of the control line hanger, the control line hanger having a second internal bore, the control line hanger communicating the control line to an inlet port on the control line hanger;disposing the control line and the control line hanger in a through-bore of the wellhead;landing the control line hanger at least partially in the wellhead component; andcommunicating the inlet port of the control line hanger with the side port of the wellhead component. 12. The method of claim 11, wherein landing the control line hanger at least partially in the wellhead component comprises engaging an external shoulder on the control line hanger on an internal shoulder of the first internal bore of the wellhead component. 13. The method of claim 11, wherein landing the control line hanger at least partially in the wellhead component comprises engaging the control line hanger with a lock screw on the wellhead component. 14. The method of claim 13, wherein engaging the control line hanger with the lock screw on the wellhead component comprises engaging an upper edge of the control line hanger or an external groove on the control line hanger with the lock screw. 15. The method of claim 11, wherein landing the control line hanger at least partially in the wellhead component comprises engaging first and second annular seals disposed about the control line hanger above and below the inlet port against the first internal bore of the wellhead component. 16. The method of claim 11, wherein installing the wellhead component on the head adapter of the wellhead comprises: installing the wellhead component as an adapter spool on the head adapter of the wellhead, the adapter spool having the side port communicating the first internal bore outside the adapter spool; andinstalling the master valve on the adapter spool. 17. The method of claim 11, wherein installing the wellhead component on the head adapter of the wellhead comprises: installing the wellhead component as a new mater valve on the head adapter of the wellhead, the new master valve having the side port communicating the first internal bore outside the new master valve. 18. The method of claim 11, wherein connecting the control line to the control line hanger comprises connecting a conduit between the wet mate connector and an outlet port on the control line hanger.
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이 특허에 인용된 특허 (23)
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