Unocal tests giant gas, condensate discovery

Unocal Corp. said on Thursday that its Unocal Ganal Ltd. subsidiary has successfully tested an appraisal well on the giant deepwater Gendalo-Gandang gas field complex.

?The results demonstrate that this is a world class gas-condensate resource, which could supply gas to Indonesia?s Bontang LNG facilities by the end of the decade, and more importantly, produce liquids even sooner,? the firm said in a press statement.

The Gendalo-3 well flowed at a daily rate of 30 million cubic feet (MMCF) of gas and 2,200 barrels of condensate from a single interval between 11,559 feet (3,523 meters) and 11,638 feet true vertical depth subsea (TVDS). The drillstem test had flowing tubing pressure of 4,114 pounds per square inch on a 40/64-inch choke.

The well has an estimated potential daily production rate at upwards of 90 million cubic feet of gas and 6,000 barrels of condensate per day.

The Gendalo-3 well encountered 102 feet of net pay. The well was drilled in 5,802 feet of water to 13,070 feet TVDS. The well is located 2.8 miles (4.5 kilometer) east of the Gendalo-1 discovery well in the central portion of the Gendalo-Gandang gas field complex.

Another appraisal well, Gandang-2 was drilled in the northern portion of the complex. This well encountered 185 feet of net gas pay. The well was drilled to 12,000 feet TDS in 5,613 feet of water. The Gandang-2 well is located 2.2 miles south of the Gandang-1 discovery well.

Unocal estimates the gross resource potential for the Gendalo-Gandang complex is at least 2.0 to 2.5 trillion cubic feet of gas plus an associated 50 to 150 million barrels of condensate.

Work to certify this resource and plan its development began in early 2001 and will continue, the company said.

Unocal Ganal is the operator of the Ganal production-sharing contract area. It holds an 80 percent working interest, while Lasmo Ganal Ltd, a subsidiary of ENI, holds the remaining 20 percent working interest.(Godang)