E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/068 (2006.01)
Patent
CA 2696583
To deploy a capillary string through a wellhead to a downhole safety valve, a control port and a retention port are drilled in an adapter between a casing hanger and a gate valve or elsewhere. The capillary string is connected to a first port of a capillary hanger and installed through the wellhead. The capillary hanger is landed on a tubing hanger, and a side port on the capillary hanger communicates with the control port. Because the side port's location may not align with the control port, operators may need to measure how long the capillary hanger should be. A control line connects to the control port in the wellhead's side to communicate with the capillary line, and a retention rod inserts in the retention port to support the capillary hanger.
Cain Brandon
Calzoncinth Eric
Jacob Jean-Luc
Jones Richard C.
Perez Paul
Goodwin Mckay
Weatherford/lamb Inc.
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