Downhole oil well tool running and pulling with hydraulic release using deformable ball valving member
First Claim
1. A downhole oil well pulling and running tool comprising:
- a) an elongated tool body having an upper end portion with means thereon for forming a connection with a workstring;
b) the tool body comprising a main body portion that is tubular, having upper and lower end portions, said main body having a bore;
c) an elongated generally tubular piston slidable within the main body bore;
d) a piston lock for locking the piston in a first running position;
e) the piston having a valve seat portion;
f) a deformable ball valving member for forming a closure with the valve seat, the valving member being a separate ball member that can be dropped into the tool bore from the well surface area via the workstring, the ball valving member, the tool body, the bore of the main body, and the workstring being so configured that the ball valving member can be transmitted from the well surface area to the valve seat via the workstring and tool body bore;
g) a cage member disposed below the valve seat;
h) a channel that extends between the valve seat and the cage member;
i) passage means for transporting the ball valving member from the seat to the cage member, wherein the ball valving member is sized to fit the seat forming a seal therewith, and wherein the ball valving member is deformable to conform to the passage means during transport to the cage member.
1 Assignment
0 Petitions
Accused Products
Abstract
A downhole oil well pulling and running tool provides a releasable tool body that can be used to release a workstring such as a coiled tubing string from a tool assembly and to reattach if desired. To reestablish circulations (the ability to pump fluid down the workstring and up the annulus of the well) after detachment by increasing the pressure across a seated ball to a predetermined pressure that forces the ball through the seat into a ball cage. The cage is sized and shaped to carry a plurality of the ball valving members so that the unlatching and relatching procedure may be repeated as many times as desired until the ball cage is filled. Also providing a delay or timing system that will allow debris to pass thru the tool without a release.
-
Citations
30 Claims
-
1. A downhole oil well pulling and running tool comprising:
-
a) an elongated tool body having an upper end portion with means thereon for forming a connection with a workstring; b) the tool body comprising a main body portion that is tubular, having upper and lower end portions, said main body having a bore; c) an elongated generally tubular piston slidable within the main body bore; d) a piston lock for locking the piston in a first running position; e) the piston having a valve seat portion; f) a deformable ball valving member for forming a closure with the valve seat, the valving member being a separate ball member that can be dropped into the tool bore from the well surface area via the workstring, the ball valving member, the tool body, the bore of the main body, and the workstring being so configured that the ball valving member can be transmitted from the well surface area to the valve seat via the workstring and tool body bore; g) a cage member disposed below the valve seat; h) a channel that extends between the valve seat and the cage member; i) passage means for transporting the ball valving member from the seat to the cage member, wherein the ball valving member is sized to fit the seat forming a seal therewith, and wherein the ball valving member is deformable to conform to the passage means during transport to the cage member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A downhole oil well pulling and running tool comprising:
-
a) an elongated tool body having an upper end portion with means thereon for forming a connection with a workstring; b) the tool body comprising a main body portion that is tubular, having upper and lower end portions, said main body having a bore; c) an elongated generally tubular piston slidable within the main body bore between running and releasing positions and having an upper end with a valve seat; d) a piston lock for locking the piston in a first running position; e) the piston having a valve seat portion, the piston being movable between running and releasing positions; f) a ball valving member that can be dropped into the tool bore from the well surface area via the workstring the ball valving member forming a closure when seated upon the valve seat; and g) a timer for slowing travel of the piston from the running to the releasing position, said timer including a fluid chamber and an orifice, wherein fluid must flow from the chamber through the orifice before the releasing position is reached. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A downhole oil well pulling and running tool comprising:
-
a) an elongated tool body having an upper end portion with a connector for forming a connection with a workstring; b) the tool body comprising a main body portion that is tubular, having upper and lower end portions, said main body having a bore; c) an elongated generally tubular piston slidable within the main body bore; d) a piston lock for locking the piston in a first running position; e) the piston having a valve seat portion; f) a deformable ball valving member for forming a closure with the valve seat, the valving member being a separate ball member that can be dropped into the tool bore from the well surface area via the workstring; g) a cage member disposed below the valve seat; h) a channel that extends between the valve seat and the cage member; and i) a passage for transporting the ball valving member from the seat to the cage member, wherein the ball valving member is sized to fit the seat forming a seal therewith, and wherein the ball valving member is deformable to conform to the passage during transport to the cage member.
-
-
22. A downhole oil well pulling and running tool comprising:
-
a) an elongated tool body having an upper end portion with means thereon for forming a connection with a workstring; b) the tool body comprising a main body portion that is tubular, having upper and lower end portions, said main body having a bore; c) an elongated generally tubular piston slidable within the main body bore between running and releasing positions and having an upper end with a valve seat; d) a piston lock for locking the piston in a first running position; e) the piston having a valve seat portion, the piston being movable between running and releasing positions; f) a ball valving member that can be dropped into the tool bore from the well surface area via the workstring, the ball valving member forming a closure seated upon the valve seat; and g) a timer for slowing travel of the piston from the running to the releasing position.
-
-
23. A downhole oil well pulling and running tool comprising:
-
a) an elongated tool body having an upper end portion with a connector for forming a connection with a workstring; b) the tool body comprising a main body portion that is tubular, having upper and lower end portions, said main body having a bore; c) an elongated piston slideable within the tool body main bore; d) the piston having a valve seat; e) a cage member disposed below the valve seat; f) a passage that connects the valve seat and cage member; f) a deformable ball valving member that can be dropped into the main body bore from the well surface; and g) means for transporting the ball valving member from the valve seat to the cage wherein the ball valving member is deformable to conform to the passage of the piston when the ball valving member is transported to the cage member. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
-
Specification