Downhole logging and servicing system with manipulatable logging and servicing tools

Apparatus for performing operations in a well bore, which comprises:

• a conveyor adapted for movement into and out of a well bore and for the passage of fluid therethrough;
• a fluid operated incremental rotation device connected to said conveyor, said incremental rotation device including a rotating part incrementally rotatable in response to fluid received from said conveyor;
• a control device connected to said incremental rotation device and operable by said rotating part of said incremental rotation device, said control device including a housing connected to said incremental rotation device, screw means mounted within said housing and operable to translate rotational motion of said rotating part of said incremental rotating device into linear motion;
• and,
• a tool connected to said control device and operable by said control device to perform downhole operations.

Apparatus for performing operations in a well bore, which comprises:

• a conveyor adapted for movement into and out of a well bore and for the passage of fluid therethrough;
• a fluid operated incremental rotation device connected to said conveyor, said incremental rotation device including a cylindrical body connectable at one end to said conveyor and;
• a rotating part including a cylindrical mandrel rotatably mounted in said body, said mandrel including a plurality of circumferentially spaced apart locking pawls;
• a ratchet sleeve axially and rotatably mounted on said mandrel, said ratchet sleeve including a pluraliy of locking ratchet notches engage-able with said locking pawls of said mandrel and said ratchet sleeve including a plurality of slots each having a helical portion;
• spring means for urging said ratchet sleeve axially toward said locking pawls;
• a drive piston axially alidingly disposed between said body and said mandrel movable between a first axial position and a second axial position;
• a plurality of drive pins carried by said drive piston and in engagement with said slots of said ratchet sleeve;
• means for preventing rotation of said drive pins with respect to said body;
• spring means for urging said drive piston axially toward said first position;
• means for prevention rotation of said mandrel with respect to said body when said drive piston is in said first and second positions and moving from said second position to said first position and for allowing rotation of said mandrel when said drive piston is moving from said second position to said first position;
• a control device operably connected to said incremental rotation device and operable by said rotating part of said incremental rotation device;
• and,
• a tool connected to said control device and operable by said control device to perform downhole operations.

A fluid operated apparatus for rotating a logging tool assembly with respect to a pipe string, which comprises:

• a body connectable to said pipe sting;
• a mandrel rotatably mounted in said body and connectable to said logging tool assembly;
• a drive piston axially slidingly disposed between said body and said mandrel and movable between a first axial position and a second axial position with respect to said body;
• and means for transmitting rotational forces to said mandrel in response to axial movement of said drive piston.

A fluid operated apparatus for incrementally rotating a logging tool assembly with respect to a pipe string, which comprises:

• a cylindrical body connectable at one end to said pipe string;
• a cylindrical mandrel rotatably mounted in said body and connectable at one end to said logging tool assembly, said mandrel including a plurality of circumferentially spaced apart locking pawls;
• a ratchet sleeve axially and rotatably mounted on said mandrel, said ratchet sleeve including a plurality of locking ratchets engageable with said locking pawls of said mandrel and said ratchet sleeve including a plurality of slots each having a helical portion;
• spring means for urging said ratchet sleeve axially toward said locking pawls;
• a drive pistion axially slidingly disposed between said body and said mandrel movable between a first axial position and a second axial position;
• a plurality of drive pins carried by said drive piston and in engagement with said slots of said ratchet sleeve;
• means for preventing rotaton of said drive pins with respect to said body;
• spring means for urging said drive piston axially toward said first position;
• and means for preventing rotation of said mandrel with respect to said body when said drive piston is in said first and second positions and moving from said second position to said first position and for allowing rotation of said mandrel when said drive piston is moving from said second position to said first position.

A downhole logging device, which comprises:

• a string of end-to-end connected pipe;
• a logging tool assembly positioned adjacent an end of said string;
• a side-entry sub positioned in said string;
• a cable extending through said side-entry sub into the interior of said string and electrically connected to said logging tool assembly;
• and means for extending said logging tool assembly with respect to said string, said extending means including, a body connected to said string, a mandrel rotatably mounted in said body, a drive piston axially slidingly disposed between said body and said mandrel, means for transmitting rotational forces to said mandrel in response to axial movement of said drive piston, a logging tool assembly housing connected to said body, a screw housing connected to said mandrel, a screw member threadably engaged with screw housing and operably connected to external said logging tool assembly, and means for preventing rotation of said screw member with respect to said logging tool assembly housing.

Apparatus for performing operations in a well bore, which comprises:

• a string of end-to-end connected pipe;
• a side-entry sub positioned in said string;
• a rotating device including a body nonrotatably connected to said string, a rotating part rotatably mounted within said body, and means within said body for rotating said rotating part independent of movement of said string;
• a tool operably connected to said rotating part of said rotating device;
• and,
• a cable extending through said side entry sub into the interior of said string and electrically connected to said tool.