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ULSTEIN
Neptune Explorer

Neptune Explorer

Product catalog summary

General Description
The Neptune Explorer is a dynamically positioned deepwater drilling rig designed by Ulstein Sea of Solutions BV. It is part of the Pelican class and has been upgraded for operations in deeper waters. The vessel is 149.3 meters long and 29.8 meters wide, with a transit speed of approximately 9 knots. It features a DP2 class positioning system and is equipped with two 2200 kW propulsion propellers and five 1350 kW tunnel thrusters.

General Specifications
The rig includes a fifth-generation drilling package with a 1,500 kips derrick and three 1,600 HP triplex mud pumps. The top drive is a Varco TDS 4, and the rotary table has a 49 ½” opening. The blowout preventer (BOP) is rated at 10,000 psi, and the marine riser storage can hold 3,500 ft of riser.

Principal Dimensions
The overall length is 149.3 meters, with a beam of 29.8 meters and a moulded depth of 12.3 meters. The design draught is 7.5 meters, and the accommodation capacity is for 143 persons.

Drilling Capacities
The rig can drill to a depth of 25,000 feet and operate in water depths of up to 5,000 feet after the upgrade.

Upgrade Details
The upgrade, performed at Sembawang Shipyard in Singapore, included the installation of a new drilling package, power generation system, and helicopter deck. The vessel was widened with new sponsons, and new riser storage racks and cranes were installed. The accommodation spaces were also rebuilt.

Contact Information
Ulstein Sea of Solutions BV is located in Vlaardingen, The Netherlands, and can be contacted at +31 10 475 00 11. Ulstein Belga Marine LTDA is based in Rio de Janeiro, Brazil, with contact number +55 21 2253 7171.

Catalog excerpts

NEPTUNE EXPLORER DYNAMICALLY POSITIONED DEEPWATER DRILLING RIG Length overall 149.3 metres Breadth 29.8 metres Upgrated for deeper waters Fifth generation drilling package Developed by Ulstein Sea of Solutions BV

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GENERAL DESCRIPTION GENERAL SPECIFICATIONS Type DP drillship Pelican class Upgraded Design Transit speed Positioning system Propulsion propellers Tunnel thrusters Main Generator Sets 1 X 382 kW 1,500 kips, 52ft x 52ft x 180 ft clear height 3 X 1,600HP triplex pumps National 12-P-160 DRILLING EQUIPMENT PRINCIPAL DIMENSIONS Length (over all) Depth (moulded) Design draught DRILLING CAPACITIES Drilling depth Water depth (after upgrade) Rotary table National 49 ½” table opening Future water depth Draw works National 1625-DE BOP (Cameron 18 ¾ “, 10,000 psi) Marine riser storage (3,500 ft of 50 ft riser,...

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Neptune Explorer

Neptune Explorer

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