Exploration • Drilling • Field Services
Jack-up rigs and drill ships to tackle harsh environments
The latest jack-up rigs and drill ships are designed for use in extreme environments – opening up new opportunities for exploration and production. Eugene McCarthy reports.
Eugene McCarthy informa que las últimas plataformas autoelevables y barcos perforadores se diseñan para su uso en condiciones ambientales extremas, abriendo nuevas oportunidades a la exploración y producción.
Die modernsten Einrichterschiffe und Bohrschiffe sind für den Einsatz unter extremen Bedingungen ausgelegt und eröffnen so neue Explorations- und Produktionsmöglichkeiten. Eugene McCarthy berichtet.
M
aersk Drilling has taken delivery of its first ultra- harsh environment jack- up, Maersk Intrepid, from the Keppel FELS
shipyard in Singapore. Te jack-up will start its mobilisation to the Norwegian North Sea shortly, where it will commence a four-year contract with Total E&P Norge. Maersk Intrepid is the first in a series of
four new-build ultra-harsh environment jack-up rigs that are due to enter Maersk Drilling’s rig fleet between 2014 and 2016. Together, the four represent a total investment of US$2 billion (€1.5 billion). Te first three jack-up rigs, including
Maersk Intrepid, will be delivered from the Keppel FELS shipyard over the next year, and the fourth will be delivered from the Daewoo Shipbuilding and Marine Engineering (DSME) shipyard in South Korea in 2016. Te Maersk Intrepid will be drilling the demanding and complex wells on the Martin Linge field development in the Norwegian North Sea. Tis contract includes four one-year options; the
estimated value of the contract is US$550 million (€406 million). With a leg length of 206.8m, the
rigs are the world’s largest jack-up rigs and are designed for year-round operation in the North Sea, in water depths up to 150m. Uptime and drilling efficiency are maximised through dual- pipe handling. While one string is working in the well bore, a second string such as a casing, drill pipe or bottom hole assembly can be assembled/disassembled and stored in the set-back area, ready for subsequent transfer for use in the well bore and thus reducing the non- productive time.
Te drill floor itself features multi- machine control – a fully remote-operated pipe handling system allowing all standard operations such as stand building and tripping to be conducted without personnel on the drill floor. Tis ensures a high level of consistency across crews and an improved efficiency. In June, a jack-up drilling rig
constructed by CIMC Raffles and named New Sheng Li 1 was delivered to Sinopec Sheng Li Petroleum Engineering. Tis was the seventh jack-up drilling rig that CIMC Raffles has delivered. It will be towed to Bohai Bay to provide drilling service to Sinopec Sheng Li Oilfield. New Sheng Li 1 is the first new-build
offshore drilling rig since Sinopec Oilfield Service Corporation was founded in 2012. Te basic design and detail design was done by Sheng Li Drilling Technology Research Institute, the shop design and construction design was completed by CIMC Raffles. Te rig is the largest and most advanced offshore drilling rig that Sheng Li Oilfield currently owns.
Fig. 1. Proxima features a design with an innovative drilling system that significantly increases the speed of the drilling process.
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