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Title: Wellbore pressure transducer

Abstract

Subterranean earth formations containing energy values are subjected to hydraulic fracturing procedures to enhance the recovery of the energy values. These fractures are induced in the earth formation by pumping liquid into the wellbore penetrating the earth formation until the pressure of the liquid is sufficient to fracture the earth formation adjacent to the wellbore. The present invention is directed to a transducer which is positionable within the wellbore to generate a signal indicative of the fracture initiation useful for providing a timing signal to equipment for seismic mapping of the fracture as it occurs and for providing a measurement of the pressure at which the fracture is initiated.

Inventors:
 [1]
  1. Morgantown, WV
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
OSTI Identifier:
863368
Patent Number(s):
4157528
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
wellbore; pressure; transducer; subterranean; earth; formations; containing; energy; values; subjected; hydraulic; fracturing; procedures; enhance; recovery; fractures; induced; formation; pumping; liquid; penetrating; sufficient; fracture; adjacent; directed; positionable; generate; signal; indicative; initiation; useful; providing; timing; equipment; seismic; mapping; occurs; measurement; initiated; pumping liquid; earth formations; earth formation; timing signal; subterranean earth; pressure transducer; signal indicative; formation adjacent; energy values; hydraulic fracturing; bore penetrating; formations containing; /338/73/

Citation Formats

Shuck, Lowell Z. Wellbore pressure transducer. United States: N. p., 1979. Web.
Shuck, Lowell Z. Wellbore pressure transducer. United States.
Shuck, Lowell Z. Mon . "Wellbore pressure transducer". United States. https://www.osti.gov/servlets/purl/863368.
@article{osti_863368,
title = {Wellbore pressure transducer},
author = {Shuck, Lowell Z},
abstractNote = {Subterranean earth formations containing energy values are subjected to hydraulic fracturing procedures to enhance the recovery of the energy values. These fractures are induced in the earth formation by pumping liquid into the wellbore penetrating the earth formation until the pressure of the liquid is sufficient to fracture the earth formation adjacent to the wellbore. The present invention is directed to a transducer which is positionable within the wellbore to generate a signal indicative of the fracture initiation useful for providing a timing signal to equipment for seismic mapping of the fracture as it occurs and for providing a measurement of the pressure at which the fracture is initiated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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