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Explosives play key role in new stimulation efforts

Journal Article · · World Oil; (United States)
OSTI ID:6662636

Information is given on 3 of the latest well stimulation methods which use explosives to induce formation factors. Project Rulison, the world's second nuclear blast aimed at stimulating natural gas production, was detonated Sept. 10 in Rulison gas field, 40 miles northeast of Grand Junction, Colo. An atomic- type explosion, equivalent to 40,000 tons of TNT, was set off at 8,427 ft in the Mesaverde formation. The explosion was designed to create a rubble-filled cylindrical chimney and fracture the formation to improve reservoir permeability around the well. A controlled reaction, non- nuclear well stimulation system, uses devices, materials, and methods carefully tailored to individual well characteristics. The stimulation system involves progressive fracturing by controlling energy release from multiple explosive treatments. On the first test, the well produced 3 Mcfd before stimulation, and after treatment, the well flow 5 MMcfd. Stratablast, developed by Dow Chemical Co., involves detonation of a slurry-type explosive placed in the well bore opposite the producing formation.

OSTI ID:
6662636
Journal Information:
World Oil; (United States), Journal Name: World Oil; (United States) Vol. 169:6; ISSN WOOIA
Country of Publication:
United States
Language:
English