Rock Springs Site 12 hydraulic/explosive true in situ oil shale fracturing experiment

Technical Report · Sun Jun 01 04:00:00 EDT 1980

DOI:https://doi.org/10.2172/5252753· OSTI ID:5252753

Parrish, R L; Boade, R R; Stevens, A L; Long, A Jr; Turner, T F

The experiment plan involved the creation and characterization of three horizontal hydraulic fractures, followed by the insertion and simultaneous detonation of slurry explosive in the two lower fractures. Core analyses, wellbore logging, and airflow and /sup 85/Kr tracer tests were used for site characterization and assessment of the hydraulic and explosive fracturing. Tiltmeters, wellhead pressure and flow gages, and in-formation pressure, flow and crack-opening sensors were used to monitor hydrofracture creation and explosive insertion. Explosive detonation diagnostic data were taken with stress and time-of-arrival gages and surface and in-formation accelerometers. The post-fracturing assessments indicated that: (1) hydrofracture creation and explosive insertion and detonation were accomplished essentially as planned; (2) induced fractures were randomly distributed through the shale with no extensively fractured regions or dislocation of shale; and (3) enhancement of permeability was limited to enlargement of the explosive-filled fractures.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5252753
• Report Number(s): SAND-80-0836
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040300* -- Oil Shales & Tar Sands-- Drilling
Fracturing & Mining
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
COMMINUTION
ENERGY SOURCES
EXPLOSIVE FRACTURING
FOSSIL FUELS
FRACTURING
FUELS
HYDRAULIC FRACTURING
NORTH AMERICA
OIL SHALES
ROCK SPRINGS SITES
ROCKY MOUNTAIN REGION
USA
WYOMING