Coiled tubing set and released resettable inflatable bridge plug

A resettable wellbore tool for running into a wellbore on a workstring and operating by application of a pressurized fluid which urges said resettable wellbore tool into a setting position in a setting engagement with a wellbore surface, said resettable wellbore tool comprising:

• an inflatable packer having a mandrel, an inflatable element retained about said mandrel, a fluid flowpath for passing said pressurized fluid to said inflatable element, at least one inflation port for passing said pressurized fluid into said fluid flowpath, and at least one deflation port for passing said pressurized fluid from said inflatable element;
• a release latch for selectively releasing said inflatable packer from said workstring, and for selectively relatching said inflatable packer to said workstring;
• a fluid control means for controlling flow of said pressurized fluid through said inflation port and into said fluid flowpath, and for controlling flow of said pressurized fluid from said inflatable element and through said deflation port, said fluid control means resettable in a plurality of positions which include:
• an inflation position for passing said pressurized fluid through said inflation port and into said inflatable element for inflating said inflatable packer into said setting engagement with said wellbore surface;
• a locking position for retaining said pressurized fluid within said inflatable element, said fluid control member operable in said locking position during operation of said release latch in which said workstring is selectively released from said inflatable packer;
• a deflation position for passing said pressurized fluid from said inflatable element, through said deflation port, and into said wellbore for deflation of said inflatable element;
• and
• a reinflation position for passing said pressurized fluid through said inflation port to reinflate said inflatable element for resetting said inflatable packer in said setting engagement with said wellbore surface after deflation from said setting engagement.

A resettable wellbore tool for running into a wellbore on a workstring and operating by application of a pressurized fluid which urges said resettable wellbore tool into a setting position in a setting engagement with a wellbore surface, said resettable wellbore tool comprising:

• an inflatable packer which includes a mandrel extending longitudinally within said resettable wellbore tool, an inflatable element disposed around said mandrel and having an inflation chamber defined therebetween, and at least one retainer member for retaining said inflatable element about said mandrel;
• a fluid flowpath extending about said mandrel and within said inflatable element for passing said pressurized fluid between a plurality of ports and said inflation chamber, said plurality of ports including:
• at least one inflation port for passing said pressurized fluid from a source of pressurized fluid and into said inflation chamber;
• at least one deflation port for passing said pressurized fluid from said inflation chamber and into an annulus defined between said inflatable packer and said wellbore surface;
• a fluid control member which is selectively resettable in a plurality of positions for selectively sealing said plurality of ports, said plurality of positions including:
• an inflation position for selectively passing said pressurized fluid through said at least one inflation port to said inflation chamber and urging said inflatable element into said setting engagement with said wellbore surface;
• a locking position for locking said pressurized fluid within said inflation chamber and retaining said inflatable element in said setting engagement with said wellbore surface;
• a deflation position for selectively passing said pressurized fluid from said inflation chamber and through said at least one deflation port for resetting said inflatable element in a deflated position;
• a reinflation position for selectively passing said pressurized fluid through said at least one inflation port to said inflation chamber and urging said inflatable element to return to said setting engagement with said wellbore surface;
• and
• a release latch for selectively releasing said inflatable packer from said workstring, and for selectively relatching said inflatable packer to said workstring for further operations including repositioning and resetting said inflatable packer at different depths within said wellbore.

A resettable wellbore tool for running into a wellbore on a workstring and operating by application of a pressurized fluid which urges said resettable wellbore tool into a setting position in a setting engagement with a wellbore surface, said resettable wellbore tool comprising:

• an inflatable packer having a mandrel, an inflatable element retained about said mandrel, a fluid flowpath for passing said pressurized fluid to said inflatable element, at least one inflation port for passing said pressurized fluid into said fluid flowpath, and at least one deflation port for passing said pressurized fluid from said inflatable element;
• a release latch for selectively releasing said inflatable packer from said workstring, and for selectively relatching said inflatable packer to said workstring;
• a fluid control means for controlling flow of said pressurized fluid through said inflation port and into said fluid flowpath, and for controlling flow of said pressurized fluid from said inflatable element and through said deflation port, said fluid control means resettable in a plurality of positions which include:
• an inflation position for passing said pressurized fluid through said inflation port and to said inflatable element for inflating said inflatable element into said setting engagement with said wellbore surface;
• a locking position for retaining said pressurized fluid within said inflatable element, said fluid control means operable in said locking position during operation of said release latch to selectively release said mandrel from said inflatable packer;
• a deflation position for passing said pressurized fluid from said inflatable element, through said deflation port, and to said wellbore for deflation of said inflatable element;
• and
• a source of pressurized fluid which is run within said workstring and selectively coupled to said resettable wellbore tool for transmitting said pressurized fluid to said resettable wellbore tool.

A resettable wellbore tool for running into a wellbore on a workstring to a setting depth within said wellbore, setting in a setting engagement with said wellbore, releasing from said setting engagement with said wellbore at said setting depth, and retrieving from said wellbore, said resettable wellbore tool comprising:

• a wellbore tool member operable in a plurality of positions, which include a first position and a second position;
• a release latch for selectively securing said wellbore tool member to said workstring, and which is operable both for releasing said wellbore tool member from said workstring and for relatching said wellbore tool member to said workstring;
• a locking member for selectively locking said release latch in a latched position, said locking member operable in a plurality of positions which include:
• a latch locked position which retains said release latch in a latched position securing said wellbore tool member to said workstring during operation of said wellbore tool member in said first position;
• a latch unlocked position which releases said release latch to allow retrieval of said workstring independent of said wellbore tool member during operation of said wellbore tool member in said second position;
• a latch relocked position which retains said release latch in said latched position for resecuring said wellbore tool member to said workstring for retrieval of said wellbore tool member after removal of said wellbore tool member from said second position;
• a fluid actuated wellbore tool which is urged into an actuated position by application of a pressurized fluid which urges said fluid actuated wellbore tool to a set position;
• a fluid control member for controlling flow of said pressurized fluid to said fluid actuated wellbore tool, said fluid control member selectively resettable in a plurality of positions which include:
• an open position for passing said pressurized fluid from a source of pressurized fluid to said fluid actuated wellbore tool;
• a closed position for locking said pressurized fluid within said fluid actuated wellbore tool;
• and
• a fluid flowpath for communicating said pressurized fluid locked within said fluid actuated wellbore tool with said locking member for automatically urging said locking member into said latch unlocked position after said pressurized fluid urges said fluid actuated wellbore tool into said actuated position.

A resettable wellbore tool for running into a wellbore on a workstring to a setting depth within said wellbore, setting in a setting engagement with said wellbore, releasing from said setting engagement with said wellbore at said setting depth, and retrieving from said wellbore, said resettable wellbore tool comprising:

• a wellbore tool member operable in a plurality of positions, which include a first position and a second position;
• a release latch for selectively securing said wellbore tool member to said workstring, and which is operable both for releasing said wellbore tool member from said workstring and for relatching said wellbore tool member to said workstring;
• a locking member for selectively locking said release latch in a latched position, said locking member operable in a plurality of positions which include:
• a latch locked position which retains said release latch in a latched position securing said wellbore tool member to said workstring during operation of said wellbore tool member in said first position;
• a latch unlocked position which releases said release latch to allow retrieval of said workstring independent of said wellbore tool member during operation of said wellbore tool member in said second position;
• a latch relocked position which retains said release latch in said latched position for resecuring said wellbore tool member to said workstring for retrieval of said wellbore tool member after removal of said wellbore tool member from said second position;
• said wellbore tool member including an inflatable packer having a mandrel, an inflatable element retained about said mandrel, and a fluid flowpath for passing a pressurized fluid to said inflatable element, said inflatable packer operable in a plurality of positions which include:
• a deflated position defining said first position in which said wellbore tool member is operable, and in which said locking member is in said latch locked position retaining said release latch in said latched position;
• an inflated position defining said second position in which said wellbore tool member is operable, and in which said locking member is automatically urged and retained in said latch unlocked position allowing release of said workstring from said wellbore tool member;
• said wellbore tool member further including a fluid control member for controlling flow of said pressurized fluid through said fluid flowpath, said fluid control member resettable in a plurality of positions which include:
• an inflating position for passing said pressurized fluid to said inflatable element for inflating said inflatable element into said setting engagement with said wellbore surface;
• a locked position for retaining said pressurized fluid within said inflatable element and locking said locking member in said latch unlocked position for retaining said release latch in said released position, said fluid control member operable in said locking position during operation of said release latch to selectively release said workstring from said inflatable packer;
• and
• a deflation position for passing said pressurized fluid from said inflatable element to said wellbore for deflation of said inflatable packer to said second position.