System and method for monitoring the location of fractures in ea

Details System and method for monitoring the location of fractures in ea System and method for monitoring the location of fractures in ea

1995-04-21

1996-04-02

Suchfield, George A.

Wells

Processes

With indicating, testing, measuring or locating

166 66, 405128, 588260, B09B 300, E21B 4326, E21B 4200

Patent

active

055032257

ABSTRACT:
A system and method for the real-time monitoring of the location (e.g. vertical extent) of a fracture within a waste disposal formation as that fracture is being formed. Acoustical-energy sensors (e.g. geophones) are isolated within the annulus of the well through which the waste material is injected into the formation. This eliminates the need for expensive, dedicated monitor wells while protecting the sensors from the abrasive effects of the injected waste material.

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"Active and Passive Imaging of Hydraulic Fractures", P. B. Willis Geophysis, Jul. 1992.

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