Rig: West Telesto

Name West Telesto
Owner (Seadrill;Gulf Drilling International)
Manager (Seadrill;Gulf Drilling International)
Rig Type Jackup
Sub Type Independent Leg Cantilever
Jackup Type High-Specification
Max Water Depth (ft) 400
Max Drill Depth (ft) 30000
Dimensions (ft) 231 x 250 x 21
Leg Length (ft) 547
Competitive Yes

Current Location

Country Malaysia
Region South East Asia

Drilling Equipment

Drawworks Type National Oilwell Varco SSGD-1000
Drawworks HP 6000
Mud Pumps Type National Oilwell Varco 14-P-220 Triplex
Top Drive National Oilwell Varco TDS-1000
Hookload Capacity (lbs) 2000000

Rig Construction Details

Rig Design Friede & Goldman
Rig Model JU-2000E
Year Built 2013
Country of Build China (PRC)
Yard Name Dalian No 1 Production Yard (DSIC)
Group Yard Name China Shipbuilding Industry Company Limited (CSIC)

Rig Contract Details

Operating Status Operational
Operator Undisclosed

News

10 Nov 2015

Sea Lion-1 Final Drilling Progress Report

3D Oil Limited (ASX: TDO) advises that wireline evaluation and sampling of formation fluids over zones of interest identified on preliminary Sea Lion -1 data have been completed. This work has confirmed that no zones of commercial hydrocarbons were encountered in the Sea Lion-1 well. Current operation is running out of the hole with logging tools. Forward operations are to plug and abandon the Sea Lion -1 well and to de-mobilise the West Telesto drilling rig from the site. This is the final Drilling Progress Report for Sea Lion -1. TDO will advise when all site operations are compete and the West Telesto has been released. Sea Lion is located in offshore Gippsland Basin permit VIC/P57 where 3D Oil has a 24.9% interest in Vic/P57 while the company’s share of Sea Lion-1 well costs is being carried up to the extent of US$7.5 million as part of an agreement with joint venture operator Carnarvon Hibiscus Pty Ltd (‘CHPL’) the wholly owned subsidiary of Hibiscus Petroleum.

26 Oct 2015

Sea Lion-1 Drilling Commenced

3D Oil Limited (ASX: TDO) is pleased to announce that the Sea Lion-1 exploration well commenced drilling operations today at 12:45 pm Melbourne time. The well is being drilled by the West Telesto jack up rig which arrived on site 22 October 2015. Sea Lion is located in offshore Gippsland Basin permit VIC/P57 where 3D Oil has a 24.9% interest in Vic/P57 while the company’s share of Sea Lion-1 well costs is being carried up to the extent of US$7.5 million as part of an agreement with joint venture operator Carnarvon Hibiscus Pty Ltd (‘CHPL’) the wholly owned subsidiary of Hibiscus Petroleum. The planned total depth of the Sea Lion-1 well is 1800m and operations are scheduled to take a total of approximately 3 - 4 weeks. Sea Lion is considered highly prospective as it is on a proven oil-producing trend, and represents one of the last undrilled 4-way dip closures at the prolific ‘Top Latrobe’ level in the Gippsland Basin. The combination of prominent mapped depth structure and the likely presence of thick high quality reservoir sands overlain by the regional seal provides the ingredients of a high quality target. An independent report has assessed the Sea Lion most likely (P50) Prospective Resource at 11.0MMbbl of oil (combined probabilistic estimate for the three main target levels).

16 Oct 2015

Sea Lion-1 set to spud

3D Oil Limited (ASX: TDO) is pleased to announce that the Sea Lion-1 exploration well is expected to spud late next week with the West Telesto jack up rig now mobilised from its previous assignment. 3D Oil has a 24.9% interest in the Vic/P57 exploration permit, in which the well is located, while the company’s share of well costs is being carried up to the extent of US$7.5 million as part of an agreement with joint venture operator Carnarvon Hibiscus Pty Ltd (‘CHPL’) the wholly owned subsidiary of Hibiscus Petroleum. The planned Total Depth of the well is programmed for 1800m and scheduled to take approximately 3 weeks. Sea Lion is considered highly prospective as it is on a proven oil-producing trend, and represents one of the last undrilled 4-way dip closures at the prolific ‘Top Latrobe’ level in the Gippsland Basin. The combination of prominent mapped depth structure and the likely presence of thick high quality reservoir sands overlain by the regional seal provides the ingredients of a high quality target. An independent report has assessed the Sea Lion most likely (P50) Prospective Resource at 11.0MMbbl of oil (combined probabilistic estimate for the three main target levels).

1 Sep 2015

Sea Lion-1 well spud date pushed back to mid-September

3D Oil Limited (“3D”) a member of the VIC/P57 joint venture being operated by Carnarvon Hibiscus Pty Ltd. (“CHPL”) has advised that the Sea Lion-1 exploration well is now not expected to spud until approximately mid-September 2015, due to delays with the rig handover. CHPL contracted the West Telesto jackup for drilling operations, however, delivery of the unit is being held up due to adverse weather conditions and thus preventing it being released by Origin Energy who are using the jackup to drill on the Yolla field.

3 Jul 2015

Origin Energy completes Yolla-5 development well

AWE Limited (“AWE”) has announced that the Operator of the BassGas joint Venture in permit T/L1, Origin Energy (“Origin”), has confirmed that the the Yolla-5 development well has reached a Total Depth of 3,384m Measured Depth below Rotary Table (“MDRT”). Yolla-5 has successfully intersected the primary reservoir targets located in the Paleocene EVCM sands. Good continuity of reservoir quality and thickness is observed between Yolla-5 and Yolla-6. The well has been logged, evaluation of results is ongoing and preparations are in place to case and complete the well before being commissioned for production and tied-in to the Yolla facility. The Yolla-5 and Yolla-6 development wells have been drilled using the West Telesto jack up rig and represent Stage 2 of the BassGas Mid Life Enhancement (MLE) project. The BassGas project consists of the Yolla offshore well head platform connected by pipeline to the gas processing facility at Lang Lang, Victoria.

11 May 2015

'West Telesto' reaches TD at Yolla-6

Origin Energy Limited (“Origin”), the Operator of the BassGas Joint Venture, today announced that the Yolla-6 production well, which spudded at 21:30 hours AEDT on 14th March 2015, had reached total depth of 3,653m Measured Depth Below Rotary Table (“MDRT”). The well was drilled using the West Telesto jack up rig, which will move back to complete drilling of the Yolla-5 well which it top hole drilled on the 10th March 2015. The Yolla-5 and Yolla-6 wells are being drilled as part of Stage 2 of the BassGas Mid Life Enhancement (“MLE”) project. Yolla-6 will be cased and completed before being commissioned for production via the BassGas production facility at Lang Lang, Victoria. The wells are being drilled from the Yolla Platform which is located in Bass Strait, approximately 140km off shore from Kilcunda, Victoria.

16 Mar 2015

First of two new production wells at BassGass successfully spudded

Origin Energy Limited (Origin), as Operator of the BassGas Joint Venture, has confirmed that the Yolla-5 production well spudded at 21:30 hours AEDT on 14 March 2015. The well is being drilled using the West Telesto jack up rig. The Yolla-5 and Yolla-6 wells are being drilled as part of Stage 2 of the BassGas Mid Life Enhancement (MLE) project. The two-well drilling program follows the successful lift of the export compression and condensate pumping units into place on the Yolla Platform as reported on 16 December 2014. These activities are designed to extend production from the Yolla field through the BassGas production facility at Lang Lang, Victoria. Origin Chief Executive Officer Upstream, Mr Paul Zealand said, “The spudding of the first of two production wells at Yolla is an important milestone and the culmination of years of planning. “Completion of the MLE project will extend the production life of BassGas, to continue to meet the growing demand for gas on Australia’s east coast,” Mr Zealand said. Prognosed total measured depth of the well is approximately 3,280 metres MDBRT. The Yolla Platform is located in Bass Strait, approximately 140km off shore from Kilcunda, Victoria.

11 Feb 2015

Hibiscus Petroleum set to spud Sea Lion in June 2015

Hibiscus Petroleum Berhad’s (“Hibiscus Petroleum”) wholly-owned entity, Carnarvon Hibiscus Pty Ltd (“CHPL”), has progressed the plan to commence the drilling operations of an exploration well located in VIC/P57 offshore Australia in June 2015. CHPL had, in October 2014, signed a rig share agreement with Origin Energy Resources Ltd (“Origin Energy”), whereby CHPL will assume the services of Seadrill’s West Telesto drilling rig, an independent leg cantilever jack-up rig, to spud and drill the Sea Lion exploration well after Origin’s drilling activities. The drilling of the Sea Lion exploration well is estimated to take up to 30 days. In mid-January 2015, the West Telesto rig arrived at Port Philip Bay in Melbourne on a Heavy Lift Vessel (HLV) and has since been offloaded and towed to Western Port Bay. West Telesto will shortly be towed to the Yolla field to commence Origin Energy’s planned well programme. Commenting on the West Telesto’s arrival, Dr Kenneth Pereira, Managing Director of Hibiscus Petroleum said, “We are excited to see the rig’s arrival in Australia as this is a big step towards the start of our second exploration drilling campaign as an independent E&P company in an operator’s role. Other than the Sea Lion drilling activities, we are also looking forward towards drilling in Norway where our jointly controlled entity, Lime Petroleum Norway AS expects to drill 3 exploration wells this year, as nonoperator.” The Sea Lion exploration prospect has been selected for drilling after in-depth technical and economic evaluation, with estimated prospective resources of between 11 million barrels on a P50 case to 15.3 million barrels on an upside P10 case. A commercial discovery at Sea Lion would improve the economics of CHPL’s West Seahorse development where a tie-in of the 2 fields would be possible.2 CHPL currently holds a 55.1% participating interest in VIC/P57 whilst HiRex (Australia) Pty Ltd (41% effective interest held by Hibiscus Petroleum) has a 20% interest in VIC/P57. The remaining 24.9% is held by 3D Oil Limited (3D Oil).

30 Oct 2014

'West Telesto' to drill exploration well in Australia

Hibiscus Petroleum Berhad (Hibiscus Petroleum) today announced that its wholly-owned entity, Carnarvon Hibiscus Pty Ltd (CHPL), has signed a rig share agreement for the drilling of an exploration well located in VIC/P57 offshore Australia. The agreement is signed with OriginEnergy Resources Ltd (Origin) which intends to drill two wells prior to handing over the rig to CHPL. Under the agreement, CHPL will assume the services of the Seadrill West Telesto drilling rig, an independent leg cantilever jack-up rig, to spud and drill the Sea Lion exploration well after the Origin’s drilling activities. The drilling of the Sea Lion exploration well is estimated to take up to 30 days. The agreement also provides CHPL with an option to drill the two West Seahorse development wells immediately following Sea Lion.The Rig Share Agreement with Origin was chosen for several reasons, including the significant savings gained for sharing of the mobilisation and demobilisation costs, certainty of the rig’s availability period, strong past operating performance, crew competence and good health, safety and environment record.

1 Apr 2014

Origin Energy secure jackup rig for Yolla field drilling

Origin Energy Limited (Origin), as operator of the BassGas Joint Venture, today announced that Seadrill Australia Pte Ltd (Seadrill) has been contracted to provide the drilling rig for the project's upcoming work program in Bass Strait's Yolla gas field. The 'West Telesto' drilling rig is expected to be mobilised during the 2014/15 Australian summer to drill the Yolla-5 and Yolla-6 wells as part of the Yolla Mid Life Enhancement project's second stage. The 'West Telesto' is a three-leg jack-up rig that will cantilever over the Yolla platform during the drilling campaign. The drilling of Yolla-5 and Yolla-6, along with the installation of associated flow lines and other works, will support the maintenance of gas production from the Yolla field.

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