Method for determining the azimuth and length of a deep vertical

Details Method for determining the azimuth and length of a deep vertical Method for determining the azimuth and length of a deep vertical

1982-06-25

1985-06-18

Cangialosi, Sal

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

166250, 166254, 367 14, G01V 124

Patent

active

045244340

ABSTRACT:
In the hydraulic fracturing of deep geologic formations for the production of fluid hydrocarbons, and where vertical fractures are formed, a method is described, using seismic geophysical techniques, for determining the azimuth and length of the fractures. This is accomplished by injecting into the formation through the fracture a selected fluid, or producing the fluid hydrocarbons from the formation into the fracture, until the formation, over a selected distance from the walls of the fracture, has a different gas saturation from the condition in the formation farther from the fracture. This condition is mapped by seismic methods.

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