Rig: WilHunter

Name WilHunter
Owner Awilco Drilling Plc
Manager Awilco Drilling Plc
Rig Type Semisub
Sub Type Midwater Floater
Jackup Type --
Max Water Depth (ft) 1500
Max Drill Depth (ft) 25000
Dimensions (ft) 270 x 206 x 116
Leg Length (ft) --
Competitive Yes

Current Location

Country UK
Region NWECS

Drilling Equipment

Drawworks Type National Oilwell Varco 1625 DE
Drawworks HP 3000
Mud Pumps Type Continental Emsco; National Oilwell Varco FB-1600 Triplex; 12-P-160 Triplex
Top Drive Aker Maritime Hydraulics DDM-650
Hookload Capacity (lbs) 1400000

Rig Construction Details

Rig Design Friede & Goldman
Rig Model L-907 Enhanced Pacesetter
Year Built 1983
Country of Build South Korea
Yard Name Okpo Shipyard
Group Yard Name Daewoo Shipbuilding & Marine Engineering (DSME)

Rig Contract Details

Operating Status Cold Stacked
Operator --

Rig Images

News

11 Feb 2016

Wilhunter SPS and Stacking

Timing of the planned WilHunter SPS will depend on when sufficient follow-on work is secured. The warm stack status on WilHunter is being continuously reviewed.

26 Feb 2015

Hess chooses not to exercise option on 'WilHunter'

Awilco Drilling Plc, the UK midwater focussed drilling contractor has announced that Hess Limited (“Hess”) has decided not to exercise its 275 day option on the WilHunter semisub. Hess extended its contract for the WilHunter in March 2013, which included the option for an additional 275 days to be exercised by 25th February 2015. However, Hess has allowed this option to lapse and as such the unit will come off contract in November 2015.

27 Oct 2014

Hess and Awilco drilling amend 'WilHunter' option period

Awilco Drilling PLC and Hess UK Ltd have agreed to postpone the date by which the duration of the option of up to 275 days on WilHunter is to be declared, the option declaration date is not later than 25th February 2015. The unit has been drilling for Hess since April 2013 and if the contract option is declared, then it would stay with the operator into Q4 2016.

4 Sep 2012

Hurricane appraisal well successful test results

Ithaca Energy Inc. announces that it has completed a successful drill stem test ("DST") on the Andrew sandstone interval in the Hurricane appraisal well, 29/10b-8, The DST achieved a gross maximum flow rate of approximately 24 million standard cubic feet of gas per day ("MMscf/d") with associated condensate of 1,200 barrels per day ("bbl/d") from a 44/64-inch fixed choke. The wellbore will now be suspended as a future Andrew reservoir production well with the capability of also producing from the Rogaland reservoir. Well 29/10b-8 was drilled to appraise sands in the eastern lobe of the Hurricane structural closure, located in the Company's Greater Stella Area ("GSA") of the UK Central North Sea. The well intersected 32 feet of Eocene Rogaland sandstone with an average porosity of 28% over the net sands. A full core of the Rogaland reservoir section was extracted. Fluid samples and downhole pressure data have confirmed the presence of liquid rich gas throughout the interval; the samples indicate a condensate-gas ratio ("CGR") of between 60 and 110 barrels of condensate per MMscf. Sufficient data was obtained to remove the need to perform a well test on this interval. Analysis of pressure data indicates the hydrocarbon-water contact is likely to be the same as that in the Hurricane discovery well, 29/10-4Z (located in the western lobe of the structure), at 9,438 feet True Vertical Depth Subsea. The well also intersected 20 feet of Palaeocene Andrew sandstone reservoir, similar in nature and thickness to that observed in the main Andrew sandstone reservoir of the Stella field, approximately 10 kilometres east of Hurricane. The reservoir is of good quality, similar to that of Stella with average porosity of 26% over the net sands, and is considered to potentially be part of a more extensive Andrew sand unit in the area. During the main flow period lasting approximately 24 hours, the Andrew interval achieved an average gross flow rate of approximately 17 MMscf/d with associated condensate of 870 bbl/d (52 degrees American Petroleum Institute ("API") Gravity) from a half inch choke. A gross maximum flow rate of 24 MMscf/d with associated condensate of 1,200 bbl/d was also achieved, with the full production potential of the well being limited by surface equipment. The well will now be suspended for future potential use as a production well for the Andrew reservoir, with the capability of also being used for future production from the Rogaland reservoir. Nick Muir, Chief Technical Officer, commented: The successful results of the Hurricane appraisal well have clearly demonstrated the significant potential of the Andrew reservoir play fairway in the Company Greater Stella Area. A work programme has already been launched to assess the development options and ultimately recoverable volumes for Hurricane, both in terms of the Rogaland and Andrew reservoirs, and the optimal solution for its integration into the ongoing development of the nearby Stella and Harrier fields; this will include the likely use of the current well as a producer. All the major contracts for the Stella development have now been awarded and the next key milestone will be the selection of the yard in which the modification works will be performed on the FPF-1 floating production unit." The well was drilled using the WilHunter enhanced pacesetter semi-submersible rig, owned by Awilco Drilling plc and managed by the services of Applied Drilling Technology International ("ADTI"). The Joint Venture partners in the Ithaca operated Block 29/10b (Hurricane) are Ithaca Energy (UK) Ltd (54.66%), Dyas UK Ltd (25.34%) and Petrofac Energy Developments UK Limited (20%).

14 Aug 2012

Hurricane well proceeding to drill stem test

Ithaca Energy Inc. announces that operations at the Hurricane appraisal well, 29/10b-8, which lies within the Company's Greater Stella Area in the UK sector of the Central North Sea are now proceeding to a Drill Stem Test ("DST"). The well has been drilled to a total measured depth of 10,779 feet to appraise hydrocarbon bearing sands in the eastern lobe of the Hurricane structural closure and logs indicate that the well has encountered hydrocarbons (possibly liquid rich gas) in both the Rogaland and Andrew sands. Pressure and fluid sampling has been undertaken across both reservoir sand intervals. An initial DST will be conducted over the Andrew sand interval. A further update will be issued when the DST results from the Andrew formation become available. The Joint Venture partners in the Ithaca operated Block 29/10b (Hurricane) are Ithaca Energy (UK) Ltd (54.66%), Dyas UK Ltd (25.34%) and Petrofac Energy Developments UK Limited (20%).

9 Jul 2012

Hurricane appraisal well commences

Ithaca Energy Inc. (TSX:IAE)(LSE:IAE) announces that it has commenced drilling of the Hurricane appraisal well in Block 29/10b (Ithaca operated), which lies within the Company's Greater Stella Area in the UK sector of the Central North Sea. The well is being drilled using the WilHunter semi-submersible rig. The Company has contracted the services of Applied Drilling Technologies International ("ADTI") to manage drilling operations under "turnkey" contract arrangements. The well programme is anticipated to take between 75 to 85 days to complete, including the performance of a drill stem test.

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