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US 4,359,131 AGranted
Method of generating a seismic signal employing a water piston
AssigneeMapco, Inc.
InventorPhilip N. Martin
Life of this patent
Estimating the term…
Abstract
A method of generating a seismic signal by forming a shallow hole in the earth's surface, at least partially filling the hole with liquid, positioning a projectile firing apparatus over the hole and firing a projectile downward into the hole impacting the liquid therein.
Claims13
A method of generating a seismic signal comprising:
- forming a shallow hole in the earth's surface;
- at least partially filling the hole with liquid;
- positioning a projectile firing apparatus over the hole;
- and
- firing a projectile downwardly into the hole, the projectile leaving the firing apparatus and impacting the liquid therein.
2 more elements
A method of seismic exploration comprising:
- forming a shallow hole in the earth;
- at least partially filling the hole with liquid;
- positioning a projectile firing gun over the hole;
- firing a projectile from the gun downwardly, the projectile leaving the gun to impact on the water and generate a seismic signal;
- and
- detecting reflection of the seismic signal.
3 more elements
A method of seismic exploration comprising:
- forming a shallow hole in the earth;
- placing in the hole a flexible bag containing liquid;
- positioning a projectile firing gun over the hole;
- firing a projectile from the gun downwardly to impact on the bag of liquid, the impact being transferred by the liquid to the earth forming a seismic signal;
- and detecting reflections of the seismic signal.
2 more elements
Dependencies are inferred from the claim text.