Guidelineless subsea wellhead entry/reentry system

Details Guidelineless subsea wellhead entry/reentry system Guidelineless subsea wellhead entry/reentry system

E - Fixed Constructions

21

B

349/1, 166/46.1

E21B 43/01 (2006.01) E21B 33/035 (2006.01) E21B 41/00 (2006.01) E21B 41/04 (2006.01)

Patent

CA 1085719

Abstract of the Disclosure A guidelineless subsea wellhead system includes TV/sonar guidance components which direct operating and/or service equipment into a position adjacent a subsea wellhead. An offset funnel mounted on the wellhead is used to guide a probe, which is mounted on a riser, into alignment with the wellhead. The probe is used to guide the riser and the ser- vice equipment into exact alignment with the wellhead so that tasks such as well entry, tree installation, well re- entry, tree cap removal, tree cap replacement and downhole wireline operations can be completed without any cable guide- lines. The system can also be used with the usual guidelines to increase the speed and accuracy of connecting to the well- head. -1a-

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