Well equipment setting or retrieval tool

Claim 2

A tool for setting or retrieving well equipment in a well comprising: elongate body means; arm means carried by said body means and movable between a first, running position and a second position for setting or retrieving equipment; means for moving said arm means from said first position to said second position and including: means extending beyond the exterior of said body for engaging an activating shoulder in the well upon movement of said body means in one direction, and hydraulic means, operable upon continued movement of said body means in said one direction once said engaging means has engaged an activating shoulder, for applying a force for actuating movement of said arm means from said first to said second position.

Claim 3

The tool of claim 1 additionally including: orientation means comprising: centralizer means including at least a pair of centralizing key means resiliently carried by said body means for centralizing said orientation means in a well pipe; orientation pawl means adapted to move radially with respect to said body means independently of said centralizer means between a first position projecting beyond said centralizing means and a second position retracted within said centralizing means and for engaging an orientation guide surface in a well pipe; and means for yieldably urging said orientation pawl means to its first position, said centralizer means operative to centralize said orientation means prior to said orientation pawl means engaging said orientation guide surface.

Claim 4

The tool of claim 1 wherein: said arm means includes: tool carrier means, lock means, and means for initially joining said tool carrier means and said lock means so that said tool carrier means and said lock means move in unison from said first position to said second position and for permitting said tool carrier means to move independently of said lock means to a retrieving position; and additionally including latch means for engaging said lock means and for latching said lock means in said second position.

Claim 5

The tool of claim 3 additionally including: detent means for detenting said tool carrier means in said retrieving position.

Claim 6

A tool for operating within a well pipe at a select orientation with respect to the well pipe comprising: operation means for performing a desired operation in a well pipe; orientation means for locating an orientation guide surface in a well pipe and including: elongate body means, centralizer means including at least a pair of centralizing key means radially movable with respect to said body means for centralizing said orientation means in a well pipe, means for yieldably urging said centralizing key means radially outwardly, orientation pawl means movable radially with respect to said body means independently of said centralizer means between a first position projecting beyond said centralizing means for locating and engaging an orientation guide surface upon movement of said tool through said well pipe in a first direction and a second position retracted within said centralizing means; means for yieldably urging said orientation pawl means to said first position; and means for interconnecting said orientation means and said operation means and for maintaining the relative rotational orientation between said operation means and said orientation means, said centralizing means centralizing said orientation means prior to said orientation pawl means engaging said orientation guide surface when said tool is moved in said first direction.

Claim 7

A tool for operating within a well pipe at a select orientation with respect to the well pipe comprising: operation means for performing a desired operation in a well pipe; orientation means for locating an orientation guide surface in a well pipe and including: elongate body means, centralizer means including at least a pair of centralizing key means radially movable with respect to said body means for centralizing said orientation means in a well pipe, means for yieldably urging said centralizing key means radially outwardly, orientation pawl means movable radially with respect to said body means independently of said centralizer means between a first position projecting beyond said centralizing means for locating and engaging an orientation guide surface upon movement of said tool through said well pipe in a first direction and a second position retracted within said centralizing means; means for yieldably urging said orientation pawl means to said first position; and means for interconnecting said orientation means and said operation means and for maintaining the relative rotational orientation between said operation means and said orientation means, said centralizing means centralizing said orientation means prior to said orientation pawl means engaging said orientation guide surface when said tool is moved in said first direction.

Claim 8

The operating tool of claim 5 wherein said operation means includes: housing means; arm means carried by said housing means and movable between a running position and a second position for setting and/or retrieving equipment; a first portion of said arm means comprising tool carrier means; a second portion of said arm means comprising lock means; means for initially joining said tool carrier means and said lock means so that said tool carrier means and said lock means move in unison from said first position to said second position and for permitting said tool carrier means to move independently of said lock means to a retrieving position; and latch means for engaging said lock means and for locking said lock means in said second position.

Claim 9

The operating tool of claim 6 additionally including: detent means for detenting said tool carrier means in said retrieving position.

Claim 10

A tool for performing a desired operation in a well pipe and comprising: operation means movable between a running position and an actuated position for performing the desired operation; actuator means for actuating said operator means and including: elongate body means, cylinder means carried by said body means, said cylinder means and said body means defining two co-communicating variable volume closed hydraulic chamber means; means carried by said body means for engaging an activating shoulder in the well and having multiple positions with respect to said body means; a charge of fluid in said co-communicating variable volume hydraulic chamber means; force applying means for being affected by said charge of fluid and extending between said actuator means and said operation means and for transmitting an actuating force to said operation means; said engaging means being adapted to engage an activating shoulder upon movement of said body means in one direction through a well pipe and, while engaged with said activating shoulder, moving between a first and a second of said multiple positions upon continued movement of said body means in said one direction; wherein upon movement of said engaging means between said first and second positions the volume of said two hydraulic chamber means varies inversely and at least a portion of said change of fluid transfers between said two hydraulic chamber means and affects said force applying means to cause an actuating force to be transmitted to said operating means.

Claim 11

A tool for performing a desired operation in a well pipe and comprising: operation means movable between a running position and an actuated position for performing the desired operation; actuator means for actuating said operator means and including: elongate body means, cylinder means carried by said body means, said cylinder means and said body means defining two co-communicating variable volume closed hydraulic chamber means; means carried by said body means for engaging an activating shoulder in the well and having multiple positions with respect to said body means; a charge of fluid in said co-communicating variable volume hydraulic chamber means; force applying means for being affected by said charge of fluid and extending between said actuator means and said operation means and for transmitting an actuating force to said operation means; said engaging means being adapted to engage an activating shoulder upon movement of said body means in one direction through a well pipe and, while engaged with said activating shoulder, moving between a first and a second of said multiple positions upon continued movement of said body means in said one direction; wherein upon movement of said engaging means between said first and second positions the volume of said two hydraulic chamber means varies inversely and at least a portion of said change of fluid transfers between said two hydraulic chamber means and affects said force applying means to cause an actuating force to be transmitted to said operating means.

Claim 12

The tool of claim 8 wherein: said engaging means has a third position; and additionally including: means for resiliently urging said engaging means towards said first position as said tool is being run in the well, means for permitting said engaging means to pass through restrictions when in said third position; and means for releasably preventing said engaging means from assuming said second position until a select force is applied to said body means.

Claim 13

The tool of claim 8 additionally including: orientation means for locating an orientation guide surface in a well pipe and including: elongate body means, centralizer means including opposed centralizing key means radially movable with respect to said body means for centralizing said orientation means in a well pipe, means for yieldably urging said centralizing key means radially outwardly, orientation pawl means movable radially with respect to said body means independently of said centralizer means between a first position projecting beyond said centralizing means for locating and engaging an orientation guide surface upon movement of said tool through said well pipe in a first direction and a second position retracted within said centralizing means; means for yieldably urging said orientation pawl means to said first position; and means for interconnecting said orientation means and said operation means and for maintaining the relative rotational orientation between said operation means and said orientation means.

Claim 14

The tool of claim 8 wherein said operation means includes: housing means; arm means carried by said housing means and movable between a running position and a second position for setting and/or retrieving equipment; a first portion of said arm means comprising tool carrier means; a second portion of said arm means comprising lock means; means for initially joining said tool carrier means and said lock means so that said tool carrier means and said lock means move in unison from said first position to said second position and for permitting said tool carrier means to move independently of said lock means to a retrieving position; and latch means for engaging said lock means and for locking said lock means in said second position.

Claim 15

The tool of claim 11 additionally including: detent means for detenting said tool carrier means in said retrieving position.

Claim 16

An actuating tool comprising: operation means movable between a running position and an actuated position for performing the desired operation; actuator means for actuating said operator means and including: elongate body means; cylinder means carried by said body means; said body means and said cylinder means forming two co-communicating variable volume closed hydraulic chamber means; said cylinder means having multiple positions with respect to said body means; means for releasably maintaining said cylinder means in a first of said multiple positions; a change of fluid within said two hydraulic chamber means; force applying means for being affected by said change of fluid and extending between the actuation means and the operation means and for transmitting an actuating force to the operation means when said cylinder means moves with respect to said body means between said first position and a second position of said multiple positions causing at least a portion of said charge of fluid to transfer between said two hydraulic chamber means; means carried by said body means for engaging an activating shoulder in the well and having multiple positions with respect to said body means and for controlling said relative movement of said cylinder means between said first and second positions.

Claim 17

An actuating tool comprising: operation means movable between a running position and an actuated position for performing the desired operation; actuator means for actuating said operator means and including: elongate body means; cylinder means carried by said body means; said body means and said cylinder means forming two co-communicating variable volume closed hydraulic chamber means; said cylinder means having multiple positions with respect to said body means; means for releasably maintaining said cylinder means in a first of said multiple positions; a change of fluid within said two hydraulic chamber means; force applying means for being affected by said change of fluid and extending between the actuation means and the operation means and for transmitting an actuating force to the operation means when said cylinder means moves with respect to said body means between said first position and a second position of said multiple positions causing at least a portion of said charge of fluid to transfer between said two hydraulic chamber means; means carried by said body means for engaging an activating shoulder in the well and having multiple positions with respect to said body means and for controlling said relative movement of said cylinder means between said first and second positions.

Claim 18

For use in combination with the actuator tool of claim 13, an operation tool comprising: housing means; means for interconnecting said elongate body means and said housing means; arm means carried by said housing means and movable between a running position and a second position for setting and/or retrieving equipment; a first portion of said arm means comprising tool carrier means; a second portion of said arm means comprising lock means; means for initially joining said tool carrier means and said lock means so that said tool carrier means and said lock means move in unison from said first position to said second position and for permitting said tool carrier means to move independently of said lock means to a retrieving position; means for interconnecting said lock means and said force applying means; and latch means for engaging said lock means and for locking said lock means in said second position.

Claim 19

The combination of claim 14 additionally including: detent means for detenting said tool carrier means in said retrieving position.

Claim 20

The combination of claim 14 additionally including: orientation means for locating an orientation guide surface in a well pipe and including: elongate body means, centralizer means including at least two centralizing key means radially movable with respect to said body means for centralizing said orientation means in a well pipe, means resiliently urging said centralizing key means radially outwardly, orientation pawl means movable radially with respect to said body means independently of said centralizer means between a first position projecting beyond said centralizing means for locating and engaging an orientation guide surface upon movement of said tool through said well pipe in a first direction and a second position retracted within said centralizing means; means for yieldably urging said orientation pawl means to said first position; and means for interconnecting said orientation means and said operation tool and for maintaining the relative rotational orientation between said operation tool and said orientation means.

Claim 21

An operation tool for setting and/or retrieving equipment in a well and comprising: housing means; arm means carried by said housing means and movable between a running position and a second position for setting and/or retrieving equipment; a first portion of said arm means comprising tool carrier means; a second portion of said arm means comprising lock means; means for initially joining said tool carrier means and said lock means so that said tool carrier means and said lock means move in unison from said first position to said second position and for permitting said tool carrier means to move independently of said lock means to a retrieving position; and latch means for engaging said lock means and for locking said lock means in said second position.

Claim 22

An operation tool for setting and/or retrieving equipment in a well and comprising: housing means; arm means carried by said housing means and movable between a running position and a second position for setting and/or retrieving equipment; a first portion of said arm means comprising tool carrier means; a second portion of said arm means comprising lock means; means for initially joining said tool carrier means and said lock means so that said tool carrier means and said lock means move in unison from said first position to said second position and for permitting said tool carrier means to move independently of said lock means to a retrieving position; and latch means for engaging said lock means and for locking said lock means in said second position.