Capillary hanger arrangement for deploying control line in existing wellhead

(19)

(11)

EP 2 236 741 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	28.06.2017 Bulletin 2017/26

(43)	Date of publication A2:
	06.10.2010 Bulletin 2010/40

(21)	Application number: 10156787.3

(22)	Date of filing: 17.03.2010

(51)

International Patent Classification (IPC):

E21B 33/047^(2006.01)

E21B 34/10^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30)

Priority:

20.03.2009 US 408527

(71)	Applicant: Weatherford Technology Holdings, LLC
	Houston, TX 77056 (US)

(72)	Inventors:
	Jones, Richard C. Lafayette, LA 70508 (US) Jacob, Jean-Luc 64230, Poey de Lescar (FR) Travis, Todd Humble, TX 77346 (US) Cain, Brandon Houston, TX 77084 (US) Calzoncinth, Eric Baytown, TX 77520 (US) Perez, Paul Richmond Texas 77407 (US)

(74)	Representative: Gee, Steven William
	D.W. & S.W. GEE 1 South Lynn Gardens London Road Shipston on Stour, Warwickshire CV36 4ER Shipston on Stour, Warwickshire CV36 4ER (GB)

(54)	Capillary hanger arrangement for deploying control line in existing wellhead

(57) 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.

Search report

Search report