By OGJ editors
HOUSTON, Apr. 20 -- Pacific Energy Resources Ltd., Long Beach, Calif., plans extensive treatment and tests at an indicated discovery in the Wyoming Green River basin east-southeast of giant Jonah gas-condensate field and will drill a second obligation well to 21,000 ft.
Pacific Energy is operating the wells to earn a 40% working interest in 85% of 100,000 acres and a 28% interest in 15% under an agreement with Wolverine Gas & Oil Corp., Grand Rapids, Mich., and Shell Oil Co. Most of the block is in southeastern Sublette County with parts in Fremont and Sweetwater counties.
Pacific Energy set 4-1/2-in. casing at 13,851 ft TD at the Pacific Paladin 15-18 well, which cut 225 net ft of shows in Cretaceous Lance and 500 ft of net sand with shows in Cretaceous Mesaverde. A total of 419 net ft has porosity greater than 6%.
Having moved off the rig by the start of sage grouse mating season Mar. 15, the company retained Stim-Tech Inc. to conduct as many as 10 frac stages after the season ends July 15. It will set up a gas processing facility and lay 12 miles of 6-in.pipeline to the southeast to sell gas during 6 months of testing.
Pacific Energy extended to 21,000 ft the proposed depth of the second well, Ranger 7-21, which is to spud in midsummer. The extension is based on results of the 1978 Williams Exploration Federal 1-34 well, which went to 25,760 ft TD. That well, in addition to Lance and Mesaverde, had the following results:
-- Ericson formation, 12,400-900 ft, with 500 ft of sand having porosity greater than 8% and resistivity range greater than 25 ohms.
-- Rock Springs formation, 12,900-14,900 ft, with 2,000 ft having good sand porosity and resistivity.
-- Blair formation, 14,900-15,100 ft, with 200 ft having good sand porosity and resistivity.
-- Baxter shale formation (same as Hilliard formation), 15,100-19,200 ft, with 4,100 ft of shale having 1,500 ft of gas potential with good porosity and resistivities.
-- Frontier formation, 19,200-21,000 ft, with several sand benches having good porosity and permeability.
Pacific Energy estimated from well control that the same formations underlie more than half of the AMI lands.
Questar Corp. began commercial production in February 2007 from a Baxter shale well in the Vermillion basin in Sweetwater County (OGJ Online, Feb. 27, 2007).
