Assessment of an Antrim Oil Shale fracture zone by vertical seismic profiling

Technical Report · Mon Sep 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/5040838· OSTI ID:5040838

Toksoez, M. N.; Turpening, R. M.; Stewart, R. R.

This report presents the results of a vertical seismic profiling (VSP) experiment performed in the upper 2500 feet (770 m) of the Michigan Basin. Both P and SH waves were used. The experiment was divided into two parts: a before survey run on the virgin rock, then an after survey across an explosively fractured volume of Antrim Oil Shale, centered at 1300 ft (400 m). From the before VSP survey, a velocity structure of the basin was calculated. Comparison of the after observations to the before elucidated the fracture volume and elastic parameters. Travel time delays, amplitude attenuation, converted and diffracted waves provided consistent information on the depth (1300 ft), shape (ellipsoid) and size (10 m x 20 m x 30 m) of the fractured volume.

• Research Organization: Dow Chemical Co., Midland, MI (USA)
• DOE Contract Number: AC20-76LC10153
• OSTI ID: 5040838
• Report Number(s): FE-2346-91
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
EXPLOSIVE FRACTURING
SEISMIC SURVEYS
OIL SHALE DEPOSITS
IN-SITU PROCESSING
MICHIGAN
MONITORING
SEISMIC P WAVES
SEISMIC S WAVES
COMMINUTION
FRACTURING
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
GREAT LAKES REGION
MINERAL RESOURCES
NORTH AMERICA
PROCESSING
RESOURCES
SEISMIC WAVES
SURVEYS
USA
040401* - Oil Shales & Tar Sands- In Situ Methods
True & Modified
040300 - Oil Shales & Tar Sands- Drilling
Fracturing & Mining