Testing Resumes on Tri-Valley's Ekho Well

Tri-Valley Oil & Gas Co. is rigging up to resume testing on its deep Ekho No. 1 approximately 45 miles northwest of Bakerfield. Drilled last year on the eastern flank of the East Lost Hills play, the well reached 19,085 feet in 86 days with oil and gas shows across 2,500 feet of intervals. The lower objective, the Vedder Sand of the Lower Temblor Section, proved to be saturated with 48 gravity oil and 1460 Btu gas but low permeability prevented immediate commercial production.

Through detailed analysis of cores and logs to date, Tri-Valley is postulating a potential gross recovery of 400 barrels of oil in place per acre-foot with a 50 barrel of oil per acre-foot recovery factor on 320-acre spacing and 1,500 cubic feet of natural gas per barrel.

To extend the research and assist in the testing, Tri-Valley is bringing in a team of worldwide experts in reservoir stimulation techniques under the leadership of Roland Blauer, president of Resource Services of Larkspur, Colorado. They include Stim-Lab of Duncan, Oklahoma, Microfrac Technologies, Inc. of Crossville, Tennessee and Tejas Resources, Inc. of Worland, Wyoming and various consultants and associates of these firms.