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Title: Apparatus and method for monitoring underground fracturing

Abstract

An apparatus and method for measuring deformation of a rock mass around the vicinity of a fracture, commonly induced by hydraulic fracturing is provided. To this end, a well is drilled offset from the proposed fracture region, if no existing well is present. Once the well is formed to a depth approximately equal or exceeding the depth of the proposed fracture, a plurality of inclinometers, for example tiltmeters, are inserted downhole in the well. The inclinometers are located both above and below the approximate depth of the proposed fracture. The plurality of inclinometers may be arranged on a wireline that may be retrieved from the downhole portion of the well and used again or, alternatively, the inclinometers may be cemented in place. In either event, the inclinometers are used to measure the deformation of the rock around the induced fracture. 13 figs.

Inventors:
; ; ;
Issue Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
678569
Patent Number(s):
5,934,373
Application Number:
PAN: 8-790,292
Assignee:
Gas Research Inst., Chicago, IL (United States) PTO; SCA: 422000; 020300; 030300; PA: EDB-99:085586; SN: 99002124534
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 10 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 02 PETROLEUM; 03 NATURAL GAS; HYDRAULIC FRACTURING; WELLS; WELL LOGGING EQUIPMENT; RESERVOIR ROCK; DEFORMATION; STRAIN GAGES

Citation Formats

Warpinski, N.R., Steinfort, T.D., Branagan, P.T., and Wilmer, R.H. Apparatus and method for monitoring underground fracturing. United States: N. p., 1999. Web.
Warpinski, N.R., Steinfort, T.D., Branagan, P.T., & Wilmer, R.H. Apparatus and method for monitoring underground fracturing. United States.
Warpinski, N.R., Steinfort, T.D., Branagan, P.T., and Wilmer, R.H. Tue . "Apparatus and method for monitoring underground fracturing". United States.
@article{osti_678569,
title = {Apparatus and method for monitoring underground fracturing},
author = {Warpinski, N.R. and Steinfort, T.D. and Branagan, P.T. and Wilmer, R.H.},
abstractNote = {An apparatus and method for measuring deformation of a rock mass around the vicinity of a fracture, commonly induced by hydraulic fracturing is provided. To this end, a well is drilled offset from the proposed fracture region, if no existing well is present. Once the well is formed to a depth approximately equal or exceeding the depth of the proposed fracture, a plurality of inclinometers, for example tiltmeters, are inserted downhole in the well. The inclinometers are located both above and below the approximate depth of the proposed fracture. The plurality of inclinometers may be arranged on a wireline that may be retrieved from the downhole portion of the well and used again or, alternatively, the inclinometers may be cemented in place. In either event, the inclinometers are used to measure the deformation of the rock around the induced fracture. 13 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}