Exploration discoveries
SE Asia-Pacific. Apache Corporation discovered gas with its Brunello-1 well in the Carnarvon basin on the Northwest Shelf of Australia. The well flowed 72.5 MMcfd of gas and 1,230 bopd of condensate from 121 ft of pay in the Triassic Mungaroo formation. Brunello-1 was drilled to a 12,027-ft depth in 508 ft of water, 99 mi from shore. Apache estimates recoverable resources in the range of 300 Bcf. BHP Billiton discovered gas in its Thebe-1 exploration well in Block WA-346-P, offshore Western Australia in the Exmouth Plateau of the Carnarvon basin. The well, 186 mi off the northwestern coast in water depths of 3,848 ft, found a 240-ft gas column. Teikoku Oil made an oil and gas discovery onshore on Japan’s Honshu Island about 150 mi northwest of Tokyo. The Minami Kuwayama TT-1 well flowed 500 bopd and 250 Mcfd of natural gas from the Shiiya Formation. InterOil’s Elk-2 appraisal well, drilled in onshore Papua New Guinea Block PPL 238, has confirmed a gas column of 4,452 ft; the company plans to build an LNG plant. Petrovietnam and Gazprom Vietgazprom reported a gas discovery offshore Vietnam in the Bac Bo (Tonkin) Gulf about 125 mi southwest of Hainan Island in Block 112. The well tested up to 14.1 MMcfd of gas. Nippon Oil Exploration (Malaysia) made a gas and condensate discovery offshore Sarawak, Malaysia in Block SK-10. Nippon said that the deeper pool discovery well in the Layang gas field is expected to produce about 2,000 bpd of condensate and 18 MMcfd of gas.
Pertamina discovered oil in Randegan Utara, West Java, Indonesia, about 125 mi east of Jakarta. Estimated oil reserves are around 11 million bbl. Middle East-Caspian. Tethys Petroleum found gas in Akkulka Block onshore Kazakhstan. The Akkulka AKK09 exploration well tested dry gas at a rate of 6.7 MMcfd on a restricted choke from a 26-ft interval at 1,706 ft. The discovery is 9 mi southeast of Kyzyloi field. Russia. PetroNeft Resources reported an oil discovery with its Lineynoye-7 well in the Western Siberian Oil and Gas basin in central Russia. Pay was found in upper Jurassic reservoirs between 7,858-7,864 ft with a 72-ft oil column.
North America. Royale Energy discovered gas in the Wingate, Entrada, Dakota, Castlegate and Mancos formations in Moon Canyon field in the Uinta basin, Utah. The formations were encountered in the Ten Mile Canyon 22-1 well, which was drilled to a 11,274-ft TD. The well also encountered pay in a shallow oil zone. Africa. Roc Oil announced an apparent discovery in the Massambala-1CH2 sidetrack well drilled on the Cabinda South Block onshore Angola. The well reached a total depth of 1,611 ft and logging indicates approximately 50 ft of oil pay. In-place reserves could be around 170 million boe, of which 10-20% might be recoverable. Dana Gas made an oil discovery in southernmost Egypt, 50 mi northwest of Aswan on the Kom Ombo Block 2. The well was drilled to a 4,000-ft TD and is in the same concession area as its oil discovery last year. Anadarko Petroleum reported that the company’s second exploration well in the Gulf of Guinea offshore Ghana, Hyedua-1, is a discovery. The well is located on the deepwater Tano Block in about 5,020 ft of water, 3.3 mi southwest of the Mahogany-1 discovery announced in June. The Hyedua-1 well found about 130 ft of net pay in a Cretaceous Santonian turbidite sandstone reservoir. Correction: The discovery reported in August 2007 “Exploration Discoveries” by Hunt Oil and Petrosen, offshore Senegal, was incorrect. A Senegal Ministry of Energy spokesman made a press statement about expectations of resource size, but drilling has not yet begun. Europe. Petrom made an oil and gas discovery with its Delta 4 offshore exploration well drilled in the Romanian sector of the Black Sea. The well tested up to 2,800 boe per day. Total has discovered gas-condensate in the UK West of Shetlands region, Block 205/5a. The Tormore 205/5a-1 well is located in 2,000 ft of water depth, about 60 mi northwest of the Shetland Islands. It was drilled to a 12,913-ft TD and tested at 32 MMcfd of gas. Statoil’s Midnattsol exploration well drilled in Block 6405/10 in the Norwegian Sea is a gas discovery. The well tested 55 MMcfd from the Rotliegend. Recoverable reserves are estimated between 30 and 40 Bcfg. The well was drilled in 3,045 ft of water to a 10,361-ft TD. The drillsite is located 25 mi north of the Ormen Lange field. ConocoPhillips and Tullow Oil discovered gas in Block 44/19b of the UK sector North Sea. The well was drilled to a 14,072-ft TD and found a 52-ft gas column in the Lower Ketch Formation, about 12.5 mi northeast of the Murdoch platform.
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