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Umbilical-Less Tubing Hanger Installation Controls System
Offshore Technology Conference, 2021Abstract The umbilical-less tubing hanger running installation tool, ROCS ("Remote Operated Control System") was first introduced as an R&D project to the market in early 2020. By February 2021, it is in operation for Aker BP in the North Sea on Deepsea Nordkapp. ROCS is specifically designed to increase the robustness
Thor Lovland, Trond Lokka
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Mechanical Umbilical-Less Installation of Tubing Hangers
SPE Offshore Europe Conference & Exhibition, 2023Abstract Operators with subsea developments on the Norwegian Continental Shelf have the last 20 years aimed for better efficiency and reduce equipment and personnel needed on the rigs in relations with subsea completions. Drivers have been reducing HSE risk, reduce need for modifications on the rigs to accommodate for subsea related ...
F. N. Hansen, C. Saelen
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Failure analysis of hanger for superheater tube
AIP Conference Proceedings, 2020Seven out of 12 pieces of hangers for superheater pipe were failed after one year in service. Failure analysis has been conducted to find out the root cause of failure. Hanger material is ASTM A182 Grade F22 Class 1. Fractography examinations revealed that the fracture mode is due to mechanical fatigue.
Husaini Ardy +2 more
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Implications of failure of alloy 718 (UNS N07718) tubing hanger in sour well
Engineering Failure Analysis, 2021Abstract High pressure/high-temperature (HP/HT) Oil & Gas wells in sour service are currently installed with UNS N07718 tubing hangers. Failure of UNS N07718 tubing hanger was recently discovered in one of the sour wells after more than ten years in service.
Janardhan Rao Saithala +4 more
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Mudline Tubing Hanger Experience in Auger-Gulf of Mexico Wells
Proceedings of SPE Annual Technical Conference and Exhibition, 2002Abstract This paper describes development and application of a new design mudline tubing hanger (MLTH) for suspending tubing weight below the mudline in offshore wells. The new design has been deployed in fifteen Auger wells with 100% success.
Joe Stuckey +3 more
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Strength design method for tubing hanger of subsea christmas tree against big temperature difference
China Ocean Engineering, 2014The tubing hanger is an important component of the subsea Christmas tree, experiencing big temperature difference which will lead to very high thermal stresses. On the basis of API 17D/ISO 13628-4 and ASME VIII-1, and by comprehensively considering the erosion of oil and the gravity load of the tubing, a calculation model is established by regarding ...
Xiao-lan Luo +5 more
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Reliable High Power ESP Tubing Hanger Connector Systems for Deepwater Downhole Applications
Offshore Technology Conference, 2013Abstract Electrical Submersible Pumps (ESPs) play a major role when it comes to artificial lift in deepwater reservoirs. Reliability of subsea equipment is an indispensable requirement in deepwater applications due to the high cost of interventions.
Sami Spahi, Pamela Parsley
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Offshore Nickel Alloy Tubing Hanger and Duplex Stainless Steel Piping Failure Investigations
CORROSION 2003, 2003Abstract In the offshore oil and gas industry, extensive use is made of corrosion resistant alloys. Two failure cases are described, one with the Cr and Mo containing nickel base alloy UNS N07718 and one with the 22%Cr duplex stainless steel UNS S31803.
S. Huizinga +3 more
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Development Of A Nonsealing Mudline Tubing Hanger For The Medusa Truss Spar
Offshore Technology Conference, 2005Abstract Use of a mudline tubing hanger (MLTH) is common in dry-tree deepwater applications with tight tolerances for tension management. It is run integral to the tubing string and can provide a pressure barrier as well as reduce the load to the platform. In single riser applications, a sealing MLTH is necessary to
k. Soter +4 more
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