Apparatus for use in controlling flow through a tubing string suspended and packed off within well bore as well as within the annulus between the tubing string and well bore above and below the packer
First Claim
1. Apparatus for use in controlling flow within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, comprisinga mandrel having a bore therethrough adapted to be connected as part of the tubing string and a pocket having an opening to one side of the bore,a closure member movable within the bore of the mandrel between positions opening and closing the bore beneath the pocket opening,means urging the closure member to the closed position,a tool movable vertically through the tubing string into and out of a landed position within the pocket,said mandrel and tool having means which, when the tool is landed in the pocket, forms first passageway means for connecting the annulus above and below the packer,said tool havingan actuator movable between a first position permitting the closure member to move to the closed position and a second position in which it moves the closure member to the open position,valve means movable from a first position closing the first passageway means to a second position opening the first passageway means, andpressure responsive means for moving each of said actuator and valve means to its second position,said mandrel and tool also having means which, when the tool is landed in the pocket, forms second passageway means therein through which control fluid may be supplied from a remote source to the pressure responsive means in order to move each of said actuator and valve means from its first to its second positions, andmeans by which said actuator and said valve means are returned to their first positions following loss of control pressure.
1 Assignment
0 Petitions
Accused Products
Abstract
There is disclosed apparatus for use in controlling flow through a tubing string suspended and packed off within a well bore and within the annulus between the string and well bore above and below the packer by tools adapted to be lowered into and raised from landed positions within a pocket to one side of a bore through a mandrel connected as part of the tubing string for releasing the packer to be set and opening a bypass therein and for opening and closing a flapper in the bore, as well as the bypass responsive to the supply of control fluid from a remote source to the pocket.
30 Citations
27 Claims
-
1. Apparatus for use in controlling flow within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, comprising
a mandrel having a bore therethrough adapted to be connected as part of the tubing string and a pocket having an opening to one side of the bore, a closure member movable within the bore of the mandrel between positions opening and closing the bore beneath the pocket opening, means urging the closure member to the closed position, a tool movable vertically through the tubing string into and out of a landed position within the pocket, said mandrel and tool having means which, when the tool is landed in the pocket, forms first passageway means for connecting the annulus above and below the packer, said tool having an actuator movable between a first position permitting the closure member to move to the closed position and a second position in which it moves the closure member to the open position, valve means movable from a first position closing the first passageway means to a second position opening the first passageway means, and pressure responsive means for moving each of said actuator and valve means to its second position, said mandrel and tool also having means which, when the tool is landed in the pocket, forms second passageway means therein through which control fluid may be supplied from a remote source to the pressure responsive means in order to move each of said actuator and valve means from its first to its second positions, and means by which said actuator and said valve means are returned to their first positions following loss of control pressure.
-
5. Apparatus for use in controlling fluid within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, comprising
a tubular body having a bore therethrough adapted to be connected as part of the tubing string and a pocket having an opening to one side of the bore, a closure member movable within the bore of the body between positions opening and closing the bore beneath the pocket opening, means urging the closure member to the closed position, a packer about the body adapted to be expanded into sealing engagement with the well bore, means movable from a first to a second position for so expanding the packer, a bypass from above to below the packer, means movable between a first position closing the bypass and a second position opening the bypass, pressure responsive means movable between a first position holding each of said expanding means and bypass closing means in its first position and a second position releasing them for movement to their second positions, and means holding said pressure responsive means in its first position, a first tool movable vertically through the tubing string into and out of the pocket, said body and first tool having means which, when the first tool is landed in the pocket, forms passageway means for supplying control fluid from a remote source to the pressure responsive means for releasing said holding means and moving said bypass closing means to its second position so as to permit the packer to be expanded, a second tool movable vertically through the tubing string into and out of a landed position within the pocket, upon removal of the first tool therefrom, said body and second tool having means which, when the second tool is landed in the pocket, forms first passageway means connecting with the open bypass to connect the annulus above and below the packer, said second tool having an actuator movable between a first position permitting the closure member to move to the closed position and a second position in which it moves the closure member to the open position, valve means movable from a first position closing the first passageway means to a second position opening the passageway, and pressure responsive means for moving each of said actuator and valve means to its second position, said body and second tool also having means which, when the second tool is landed in the pocket, forms second passageway means through which control fluid may be supplied to said pressure responsive means in order to move each of said actuator and valve means from its first to its second positions, and means by which said actuator means and said valve means are returned to their first positions following loss of control pressure.
-
9. For use in controlling flow within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, and wherein a mandrel having a bore therethrough is connected as part of the tubing string and has a pocket having an opening to one side of the bore, a closure member movable within the bore between positions opening and closing the bore beneath the pocket opening, and means yieldably urging the closure member to the closed position;
-
apparatus comprising a tool movable vertically through the tubing string and into and out of a landed position within the pocket, said tool having means which, when landed in the pocket, forms with the mandrel a first passageway for connecting the annulus above and below the packer, an actuator movable between a first position permitting the closure member to move to the closed position and a second position in which it moves the closure member to the open position, valve means movable from a first position closing the first passageway to a second position opening the first passageway, pressure responsive means for moving each of said actuator and valve means to its second position, means which, when the tool is landed in the pocket, forms with the mandrel a second passageway through which control fluid may be supplied from a remote source to the pressure responsive means in order to move each of said actuator and valve means from its first to its second positions, and means by which said actuator and said valve means are returned to their first positions following loss of control pressure. - View Dependent Claims (10, 11, 12)
-
-
13. For use in controlling fluid within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, and wherein a tubular body having a bore therethrough is connected as part of the tubing string, and has a pocket having an opening to one side of the bore, a closure member movable within the bore of the body between positions opening and closing the bore beneath the pocket opening, means yieldably urging the closure member to the closed position, a packer about the body adapted to be expanded into sealing engagement with the well bore, means movable from a first to a second position for so expanding the packer, a bypass from above to below the packer, means movable between a first position closing the bypass and a second position opening the bypass, pressure responsive means movable between a first position holding each of said expanding means and bypass closing means in its first position and a second position releasing them for movement to their second positions, and means holding said pressure responsive means in its first position;
-
apparatus comprising a first tool movable vertically through the tubing string into and out of the pocket, said first tool having means which, when the first tool is landed, forms with the body a first passageway for supplying control fluid from a remote source to the pressure responsive means for releasing said holding means and moving said bypass closing means to its second position so as to permit the packer to be expanded, a second tool movable vertically through the tubing string into and out of a landed position within the pocket, upon removal of the first tool therefrom, said second tool having means which, when the second tool is landed in the pocket, forms with the body a passageway connecting with the open bypass to connect the annulus above and below the packer, an actuator movable between a first position permitting the closure member to move to the closed position and a second position in which it moves the closure member to the open position, valve means movable from a first position closing the passageway to a second position opening the passageway, and pressure responsive means for moving each of said actuator and valve means to its second position, said body and second tool also having means which, when the second tool is landed in the pocket, forms with the body a second passageway through which control fluid may be supplied to said pressure responsive means in order to move each of said actuator and valve means from its first to its second positions, and means by which said actuator and said valve means are returned to their first positions following loss of control line pressure. - View Dependent Claims (14, 15, 16)
-
-
17. Apparatus for use in controlling flow within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, comprising
a mandrel having a bore therethrough adapted to be connected as part of the tubing string and an enlarged portion in which pocket means having an opening to one side of the bore is formed, a closure member movable within the bore of the mandrel between positions opening and closing the bore beneath the pocket means opening, means urging the closure member to the closed position, tool means movable vertically through the tubing string into and out of a landed position within the pocket means, a portion of said tool means having an actuator movable between a first position permitting the closure member to move to the closed position and a second position in which it moves the closure member to the open position, and pressure responsive means for moving the actuator to its second position, said mandrel and another portion of the tool means having means which, when the other portion of the tool means is landed in the pocket means, forms a first passageway means for connecting the annulus above and below the packer, and said other portion of the tool means having valve means movable from a first position closing the first passageway means to a second position opening the first passageway means, and pressure responsive means for moving the valve means to its second position, said mandrel and each of said portions of the tool means having means which, when each portion of the tool means is landed in the pocket means, forms second passageway means through which control fluid may be supplied from a remote source to each said pressure responsive means in order to move each of said actuator and valve means from its first to its second positions, and means by which said actuator and said valve means are returned to their first positions following the loss of control pressure supplied thereto.
-
21. Apparatus for use in controlling fluid within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, comprising
a tubular body having a bore therethrough adapted to be connected as part of the tubing string and an enlarged portion in which pocket means having an opening to one side of the bore is formed, a closure member movable within the bore of the body between positions opening and closing the bore beneath the pocket means opening, means urging the closure member to the closed position, a packer about the body adapted to be expanded into sealing engagement with the well bore, means movable from a first to a second position for so expanding the packer, a bypass from above to below the packer, means movable between a first position closing the bypass and a second position opening the bypass, pressure responsive means movable between a first position holding each of said expanding means and bypass closing means in its first position and a second position releasing them for movement to their second positions, and means holding said pressure responsive means in its first position, a first tool movable vertically through the tubing string into and out of the pocket means, said body and first tool having means which, when the first tool is landed in the pocket means, forms passageway means for supplying control fluid from a remote source to the pressure responsive means for releasing said holding means and moving said bypass closing means to its second position so as to permit the packer to be expanded, a tool means movable vertically through the tubing string into and out of a landed position within the pocket means, upon removal of the first tool therefrom, a first portion of the tool means having an actuator movable between a first position permitting the closure member to move to the closed position and a second position in which it moves the closure member to the open position, and pressure responsive means for moving the actuator to its second position, said body and a second portion of the tool means having means which, when the second portion of the tool means is landed in the pocket means, forms first passageway means connecting with the open bypass to connect the annulus above and below the packer, and said second portion of the tool means having valve means movable from a first position closing the first passageway means to a second position opening the first passageway means, and pressure responsive means for moving the valve means to its second position, said body and each of said portions of said tool means having means which, when each portion of the tool means is landed in the pocket means, forms second passageway means through which control fluid may be supplied from a remote source to each said pressure responsive means in order to move each of said actuator and valve means from its first to its second positions, and means by which said actuator means and said valve means are returned to their first positions following the loss of control pressure supplied thereto.
-
25. Apparatus for use in controlling flow within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, comprising
a mandrel having a bore therethrough adapted to be connected as part of the tubing string and an enlarged portion in which pocket means having an opening to one side of the bore is formed and in which tool means movable vertically through the tubing string may be landed, a closure member movable within the bore of the mandrel between positions opening and closing the bore beneath the pocket means opening, and means urging the closure member to the closed position, said mandrel also having means which, when the tool means is landed in the pocket means forms with a first portion of the tool means a normal closed first passageway means for connecting the annulus above and below the packer and with a second portion of the tool means a second passageway means through which control fluid may be supplied from a remote source to pressure responsive means within each of the first and second portions of the tool means in order to move said pressure responsive means in a direction to open said closure member and open the first passageway means.
-
27. Apparatus for use in controlling fluid within a tubing string suspended and packed off within a well bore as well as the annulus between the tubing string and well bore above and below the packer, comprising
a tubular body having a bore therethrough adapted to be connected as part of the tubing string and an enlarged portion in which pocket means having an opening to one side of the bore is formed and in which a tool and tool means movable vertically through the tubing string may be landed, a closure member movable within the bore of the body between positions opening and closing the bore beneath the pocket means opening, means urging the closure member to the closed position, a packer about the body adapted to be expanded into sealing engagement with the well bore, means movable from a first to a second position for so expanding the packer, a bypass from above to below the packer, means movable between a first position closing the bypass and a second position opening the bypass, pressure responsive means movable between a first position holding each of said expanding means and bypass closing means in its first position and a second position releasing them for movement to their second positions, and means holding said pressure responsive means in its first position, said body also having means which, when the tool is landed in the pocket means, forms tool passageway means through which control fluid may be supplied from a remote source to pressure responsive means within the tool for releasing said holding means and moving said bypass closing means to its second position so as to permit the packer to be expanded, and which, when the tool means is landed in the pocket means, upon removal of the tool therefrom, forms with a first portion of the tool means a normal closed first passageway means for connecting the annulus above and below the packer and with a second portion of the tool means a second passageway means through which control fluid may be supplied from a remote source to pressure responsive means within each of the first and second portions of the tool means in order to move said last mentioned pressure responsive means in a direction to open said closure member and open the first passageway means.
Specification