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Plexus wellhead tech commissioned for drilling offshore Norway

10th June 2013

Det Norske hires Plexus wellhead sdystem POS-GRIP friction-grip method for exploration of the NCS

Plexus wellhead tech commissioned for drilling offshore Norway
The POS-GRIP surface wellhead is designed for use on jack-up rigs equipped with a low pressure and high pressure twin BOP stack arrangement

Oil and gas engineering services company Plexus Holdings PLC, has signed a new contract for two wells from Norwegian Det Norske Oljeselskap ASA (DetNor) to supply its POS-GRIP high pressure high temperature (HP-HT) wellhead system for two exploration wells in the Norwegian Continental Shelf, both worth a total of approximately USD 3.1m. 

The contract is for the supply of the company’s POS-GRIP HP/HT 18-3/4″ 15M surface wellhead system and mudline casing support for two wells to be drilled from the Maersk Giant rig, the first of which is due to spud later this calendar year. 

The second DetNor well is expected to commence drilling within 16 months.  Currently eight wells are scheduled to be drilled on the Maersk Giant rig, six of which will be using Plexus’ equipment, including the Frode well operated by Talisman Energy Inc which is currently drilling.

The POS-GRIP 13-5/8” 10,000 psi adjustable surface wellhead is designed for use on jack-up rigs equipped with a low pressure and high pressure twin BOP stack arrangement. According to Plexus, in its “minimal” mode the system will normally be used on wells utilising 30”x 13-3/8” x 9-5/8” casing schemes whilst the “full” system design copes with 30” x 20” x 13-3/8” x 9-5/8” Casing.

DetNor has previously used the company’s POS-GRIP wellhead equipment during a separate drilling campaign off the Maersk Guardian rig, also in the Norwegian North Sea, in 2012 when it was a part of the consortium that included Centrica and Faroe Petroleum PLC, which drilled three wells.