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Title: 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):
5,121,363
Application Number:
07/634,251
Assignee:
Conoco Inc. (Ponca City, OK) INL
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}
}

Patent:

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