Back to results
US 10,538,981 B2Granted
Opposing piston setting tool
OwnerJohnny Covalt, Rick Smithinventors
Life of this patent
Estimating the term…
Abstract
A setting tool for use in setting plugs downhole using opposing pistons to axially compress a plug, thereby causing it to radially expand.
Claims31
A setting tool apparatus comprising:
- a substantially cylindrical body with a center axis;
- a first chamber;
- a first piston slidably disposed within the first chamber and having a first piston face;
- a mandrel extending normal from the first piston face in a first direction;
- a second piston slidably disposed in the first chamber and having a second piston face and an axial through bore, wherein the mandrel of the first piston slidably engages through the axial through bore of the second piston, and the first piston face, the second piston face, and the cylindrical body form a pressure chamber.
2 more elements
A setting tool apparatus comprising:
- a cylindrical body having a center axis, a first end, a second end, at inner surface, and an outer surface;
- a first piston located within the cylindrical body and axially aligned with the cylindrical body, having a first end and a second end, and a fluid passage connecting the first end to the second end;
- a cylindrical mandrel extending from the second end of the first piston and being axially aligned with the cylindrical body;
- a second piston located within the cylindrical body and axially aligned with the cylindrical body;
- an axial bore throughout the length of the second piston, with a first end and a second end;
- wherein the first end of the second piston, the second end of the first piston, and the cylindrical body form a variable volume pressure chamber.
3 more elements
A method for setting a plug in a borehole comprising:
- activating a firing head;
- starting a gas pressure generating chemical reaction;
- pressurizing a chamber located with a cylinder with the generated gas pressure;
- moving a piston disposed within the cylinder in a first axial direction with the generated gas;
- moving the cylinder in the first axial direction with the generated gas.
2 more elements
Dependencies are inferred from the claim text.