Patent ID: 8011436
Filing Date: 2011-09-06
Classification: E21B

Abstract:
1. A method of completing a subsea well having a subsea wellhead housing and at least one string of casing supported by a casing hanger in the wellhead housing, comprising: (a) connecting a riser to the subsea wellhead housing; (b) providing an tree block with a flow passage containing an upper valve, and providing a tubing assembly comprising a string of tubing and a tubing hanger, each of the tubing and the tubing hanger having a flow passage, at least one of which contains a lower valve; (c) lowering the tubing assembly through the riser and latching and sealing the tubing hanger to the wellhead housing; (d) lowering the tree block through the riser and latching and sealing the tree block to the wellhead housing with the flow passage in the tree block in communication with the flow passage in the tubing hanger; then (e) disconnecting the riser from the wellhead housing; then (f) connecting a flowline connection module to the tree block, the module having a flow passage that registers with the flow passage in the tree block; and (g) connecting the flow passage of the flowline connection module to a flowline, opening the upper and lower valves and flowing fluid through the flow passage in the module and the flowline.