US 11,773,678 B2
Barrier arrangement in wellhead assembly
Chris D. Bartlett, Spring, TX (US); Daniel J. McLaughlin, Katy, TX (US); Raymond Guillory, Houston, TX (US); Blake T. DeBerry, Houston, TX (US); Marcus Smedley, Houston, TX (US); Gregory K. Norwood, Boerne, TX (US); David A. Scantlebury, Missouri City, TX (US); Andrew B. Mitchell, Houston, TX (US); and Darren W. Mills, Houston, TX (US)
Assigned to Dril-Quip, Inc., Houston, TX (US)
Filed by Dril-Quip, Inc., Houston, TX (US)
Filed on Aug. 16, 2022, as Appl. No. 17/889,232.
Application 17/889,232 is a continuation in part of application No. 17/299,435, granted, now 11,542,778, previously published as PCT/US2019/064485, filed on Dec. 4, 2019.
Claims priority of provisional application 62/775,672, filed on Dec. 5, 2018.
Prior Publication US 2022/0389781 A1, Dec. 8, 2022
Int. Cl. E21B 33/035 (2006.01); E21B 33/043 (2006.01); E21B 33/038 (2006.01)
CPC E21B 33/0355 (2013.01) [E21B 33/038 (2013.01); E21B 33/043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a tubing hanger positioned in or below a wellhead housing coupled to a subsea well;
a tree cap fluidly coupled to the tubing hanger and disposed atop the wellhead housing;
a pair of master production valves configured to be selectively actuated from an open position to a closed position to shut in the subsea well, each of the pair of master production valves located within or below the wellhead housing; and
a module that is separate from and coupled to the tubing hanger, wherein the module comprises a crossover valve.