Cladhan well lifts oil hopes

Offshore staff

LONDON – Side track drilling has revealed further oil in the Cladhan discovery in the UK northern North Sea. Initial results from logging while drilling data indicate a 258-ft (78.6-m) gross hydrocarbon-bearing reservoir interval (169 ft, or 51.5 m, vertical thickness) with 108 ft (33 m) net pay (71 ft, or 21.6 m, vertical thickness). Oil has been established down to 9,643 ft (2,939 m) subsurface, but no oil/water contact has been penetrated.

Further wireline logging, downhole sampling, and pressure measurements will follow. Results from the three wells to date suggest a hydrocarbon column of over 425 ft (129 m).

Well 210/29a-4Y, operated by Sterling Resurces, is the second side track on the accumulation in block 210/29a. According to partner EnCore Oil, the latest effort was drilled to a measured TD of 11,530 ft (3,514 m), roughly 1 km (0.6 mi) southeast of the 2008 discovery well.

Once current operations have been completed, data will be analyzed to determine the next drilling location. Depending on rig availability, drilling will resume either late this year or early in 2011.

EnCore CEO Alan Booth said: “We are now very confident that we have a potentially significant commercial accumulation. We hope to return to the Cladhan area at the earliest opportunity to establish both the southern extent of Cladhan and drill further down dip in search of the contact.

“Following on from our Catcher drilling program announced last week, the Galaxy II rig has not yet been assigned to EnCore as bad weather has prevented the rig from being mobilized to the Catcher area from its current operating location. Arrival at the Varadero location is dependent on a suitable weather window for its mobilization.”

10/04/2010

Related Articles

Statoil proves oil accumulation near Ekofisk offshore Norway

Feb 13, 2015

Statoil has discovered a small oil accumulation with a wildcat well in the southern Norwegian North Sea.

Indonesia approves proposals for offshore gas field cluster

Feb 12, 2015

Husky Energy says it is advancing development work on four shallow-water gas fields in the Madura Strait offshore Indonesia.

North Sea Crosgan well reaches gas targets

Feb 12, 2015

Sterling Resources says Shell’s Crosgan appraisal well 42/15b-3 in the UK southern North Sea has reached 8,401 ft (2,561 m) TD.

West Telesto jackup arrives in Melbourne

Feb 12, 2015

Hibiscus Petroleum subsidiary Carnarvon Hibiscus says exploration drilling will start soon on the VIC/P57 permit offshore southeast Australia.

Karoon completes Kangaroo-2 side track offshore Brazil

Feb 11, 2015

Side track drilling has been completed on Karoon Gas Australia’s Kangaroo-2 appraisal well in exploration block S-M-1165 of the Santos basin offshore Brazil.

Trending News

UK, Norway could benefit from falling costs, analyst claims

May 27, 2015

Wood Mackenzie expects capital and operating costs in the UK and Norway’s upstream sectors to decrease steadily this year in response to lower oil prices.

Petronas starts production from Bukit Tua offshore Indonesia

May 27, 2015

Petronas has delivered first oil achieved from the Bukit Tua field development in the Ketapang block, 110 km (68 mi) offshore East Java.

Total reaches production milestone offshore Angola

May 27, 2015

Total has produced its two-billionth barrel from its operated deepwater block 17, 150 km (93 mi) offshore Angola.

Gudrun leak a serious threat to platform crew, report finds

May 27, 2015

Statoil has outlined the conclusions of its investigation into a condensate leak earlier this year on the Gudrun platform in the Norwegian North Sea.

CNOOC discovers oil in the eastern South China Sea

May 27, 2015

CNOOC Ltd. has made a mid-sized discovery on the Liuhua 20-2 structure in the eastern South China Sea.

  Offshore
Digital Magazine
Look Inside
Cover
Current Issue

Oil & Gas Jobs

Search More Job Listings >>