Chemical explosive fracturing Devonian shale and Canyon Sands. Final report, 1 July 1976-31 December 1979. [Astrofrac]

Technical Report · Sat Dec 01 00:00:00 EST 1979

DOI:https://doi.org/10.2172/5558752· OSTI ID:5558752

The Devonian shale resource which underlies much of Appalachia and was the formation of interest in Kentucky and West Virginia is discussed. The CEF process is described which consists of pumping two non-detonable chemical streams down the well bore to a mixer where the liquid explosive is manufactured. The explosive is displaced down the tubing to the bottom of the well and out into the formation rock. It detonates in thin films as well as in the borehole thus fracturing the rock and increasing the permeability. Site selection, pre and post shot flow tests, cleanout and production results are presented. The problems encountered are discussed. Evaluation led to modified and improved placement, initiation, and cleanout techniques. Projected costs for the improved simulation and cleanout technique are presented. Additional tests to determine the caging/springing effect in the borehole are planned by Petroleum Technology Corporation.

• Research Organization: Petroleum Technology Corp., Redmond, WA (USA)
• DOE Contract Number: AC08-76ET12051; AC08-76ET12052; AC08-76ET12055
• OSTI ID: 5558752
• Report Number(s): DOE/ET/12051-1
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
04 OIL SHALES AND TAR SANDS
BLACK SHALES
EXPLOSIVE FRACTURING
NATURAL GAS DEPOSITS
CHEMICAL EXPLOSIVES
DETONATIONS
ECONOMIC ANALYSIS
ENHANCED RECOVERY
KENTUCKY
SANDSTONES
TEXAS
WEST VIRGINIA
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CENTRAL REGION
CHATTANOOGA FORMATION
COMMINUTION
ECONOMICS
ENERGY SOURCES
EXPLOSIVES
FOSSIL FUELS
FRACTURING
FUELS
GEOLOGIC DEPOSITS
NORTH AMERICA
OIL SHALES
RESOURCES
ROCKS
SEDIMENTARY ROCKS
SOUTHEAST REGION
SOUTHWEST REGION
USA
030900* - Natural Gas- Artificial Stimulation
Plowshare- (-1989)
040300 - Oil Shales & Tar Sands- Drilling
Fracturing & Mining