Fracture detection logging tool
Abstract
A method and apparatus by which fractured rock formations are identified and their orientation may be determined includes two orthogonal motion sensors which are used in conjunction with a downhole orbital vibrator. The downhole vibrator includes a device for orienting the sensors. The output of the sensors is displayed as a lissajou figure. The shape of the figure changes when a subsurface fracture is encountered in the borehole. The apparatus and method identifies fractures rock formations and enables the azimuthal orientation of the fractures to be determined.
- Inventors:
- Issue Date:
- Research Org.:
- Conoco Inc., Ponca City, OK (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1245954
- Patent Number(s):
- 5121363
- Application Number:
- 07/634,251
- Assignee:
- Conoco Inc. (Ponca City, OK)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1990 Dec 26
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; 47 OTHER INSTRUMENTATION
Citation Formats
Benzing, William M. Fracture detection logging tool. United States: N. p., 1992.
Web.
Benzing, William M. Fracture detection logging tool. United States.
Benzing, William M. Tue .
"Fracture detection logging tool". United States. https://www.osti.gov/servlets/purl/1245954.
@article{osti_1245954,
title = {Fracture detection logging tool},
author = {Benzing, William M.},
abstractNote = {A method and apparatus by which fractured rock formations are identified and their orientation may be determined includes two orthogonal motion sensors which are used in conjunction with a downhole orbital vibrator. The downhole vibrator includes a device for orienting the sensors. The output of the sensors is displayed as a lissajou figure. The shape of the figure changes when a subsurface fracture is encountered in the borehole. The apparatus and method identifies fractures rock formations and enables the azimuthal orientation of the fractures to be determined.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {6}
}
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