Rig: GSF Development Driller II

Name GSF Development Driller II
Owner GSF Leasing Services GmbH
Manager Transocean Offshore Deepwater Drilling Inc.
Rig Type Semisub
Sub Type Ultradeep Water
Jackup Type --
Max Water Depth (ft) 7500
Max Drill Depth (ft) 37500
Dimensions (ft) 324.2 x 258.1 x 28.2
Leg Length (ft) --
Competitive Yes

Current Location

Country --
Region --

Drilling Equipment

Drawworks Type National Oilwell Varco AHD-1000
Drawworks HP 6900
Mud Pumps Type --
Top Drive National Oilwell Varco HPS-1000
Hookload Capacity (lbs) 2000000

Rig Construction Details

Rig Design Friede & Goldman
Rig Model ExD
Year Built 2005
Country of Build Singapore
Yard Name PPL Shipyard
Group Yard Name SembCorp Marine Ltd.

Rig Contract Details

Operating Status Destroyed

Rig Images


14 Oct 2015

Lukoil announces new discovery in Romania

PJSC LUKOIL (“Lukoil) has announced the completion of drilling operations at the Lira-1X exploration well location and the discovery of a gas field in the Lira offshore structure, which is located at the Trident block (EX-30) in the deep-sea Romanian offshore. Exploration on the EX-30 block is conducted by LUKOIL Overseas Atash BV (100-% subsidiary of Lukoil) within the framework of the Concession Agreement with the Government of Romania of 2011. Currently Lukoil’s share in the project is 72%, while PanAtlantic Petroleum Ltd owns 18% and Societatea Nationale de Gaze Naturale Romgaz SA owns 10%. The Lira-1X well is located at a distance of about 170 km (90 miles) from the coast, where the depth of the sea is about 700 meters. The well was drilled to a depth of 2,700 meters (8,858 feet) from the semisub drilling rig Development Driller II. The well was temporarily abandoned for further evaluation of the Lira gas discovery. According to preliminary results of the analysis of drilling data and geophysical exploration, the Lira-1X delivered a productive interval with an effective gas-saturated thickness of 46 meters. The success of the Lira-1X well will reduce the risk for further exploration on a series of prospective sites with significant potential reserves, located both close to the Lira structure and in other parts of the block. The program of future works planned for 2016 includes drilling an exploration well at the Lira and the reprocessing of seismic data to confirm the size of the discovery and precise assessment of its potential hydrocarbon reserves.

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