Method of determining change in subsurface structure due to appl

Details Method of determining change in subsurface structure due to appl Method of determining change in subsurface structure due to appl

1979-07-09

1981-06-09

Goldberg, Gerald

Measuring and testing

With fluid pressure

Dimension, shape, or size

33 1H, 73432R, G01N 1902, G01N 3324

Patent

active

042716969

ABSTRACT:
This invention relates to a method of determination of the change in subsurface structure of the earth resulting from the application of fluid pressure at a selected point, at a selected depth, in the earth, by measuring at least one physical parameter of the contour of the subsurface of the earth above the point of application of fluid pressure. The method involves positioning a plurality of tiltmeters on the earth above the point of application of fluid pressure arranged in a known array, and measuring the change in angle of tilt of the earth's surface at the point of placement of each sensor while varying the pressure and flow rate of fluid into the earth at the selected point.

REFERENCES:
patent: 3427652 (1969-02-01), Seay
patent: 3586105 (1971-06-01), Jonhson et al.
patent: 3739871 (1973-06-01), Bailey
patent: 3796091 (1974-03-01), Serata
patent: 3921126 (1975-11-01), Waters
patent: 4044828 (1977-08-01), Jones et al.

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