A system includes a deployment device and an adjustable mill. The deployment device has a box end with internal threads. The adjustable mill has a tubular body, a cylinder, and a lock ring. The tubular body has a lateral end and a pin end. The pin end has external threads, the lateral end is partially enveloped by cutters, and the lateral end comprises an inner wall defining an orifice. The cylinder is movably disposed within the orifice. The cylinder is partially enveloped by the cutters. The lock ring is disposed circumferentially around the cylinder. The lock ring interacts with a lock ring seat machined into the inner wall of the lateral end to place the adjustable mill in a mode. The internal threads of the adjustable mill and the external threads of the deployment device interact to form a connection between the adjustable mill and the deployment device.

A system includes a deployment device and an adjustable mill. The deployment device has a box end with internal threads. The adjustable mill has a tubular body, a cylinder, and a lock ring. The tubular body has a lateral end and a pin end. The pin end has external threads, the lateral end is partially enveloped by cutters, and the lateral end comprises an inner wall defining an orifice. The cylinder is movably disposed within the orifice. The cylinder is partially enveloped by the cutters. The lock ring is disposed circumferentially around the cylinder. The lock ring interacts with a lock ring seat machined into the inner wall of the lateral end to place the adjustable mill in a mode. The internal threads of the adjustable mill and the external threads of the deployment device interact to form a connection between the adjustable mill and the deployment device.

A variety of systems and methods are disclosed for cleaning a wellbore ahead of a well tool. The well tool is deployed on a tubular conveyance to a depth into a well. An interior surface of the well is wiped ahead of the well tool to dislodge debris from the interior surface of the well as the tubular conveyance advances downhole. The debris is filtered ahead of the well tool as the tubular conveyance advances downhole to keep the filtered debris away from the well tool. The well tool may then be used to perform a tool function when the tubular conveyance has reached the depth, without being affected by the filtered debris.

A variety of systems and methods are disclosed for cleaning a wellbore ahead of a well tool. The well tool is deployed on a tubular conveyance to a depth into a well. An interior surface of the well is wiped ahead of the well tool to dislodge debris from the interior surface of the well as the tubular conveyance advances downhole. The debris is filtered ahead of the well tool as the tubular conveyance advances downhole to keep the filtered debris away from the well tool. The well tool may then be used to perform a tool function when the tubular conveyance has reached the depth, without being affected by the filtered debris.

A method and apparatus for operating a debris removal tool. In one embodiment, the tool includes a cover assembly having a plurality of covers spaced from one another along the length of the assembly creating a gap between adjacent covers. A carrier disposed within the cover assembly is axial movable relative thereto and has a plurality of magnet groups spaced from one another along its length. In an unactuated position of the tool, each of the plurality of magnet groups is under one of the plurality of covers and in an actuated position, each of the plurality of magnets is in a gap between covers.

A method and apparatus for operating a debris removal tool. In one embodiment, the tool includes a cover assembly having a plurality of covers spaced from one another along the length of the assembly creating a gap between adjacent covers. A carrier disposed within the cover assembly is axial movable relative thereto and has a plurality of magnet groups spaced from one another along its length. In an unactuated position of the tool, each of the plurality of magnet groups is under one of the plurality of covers and in an actuated position, each of the plurality of magnets is in a gap between covers.

A variety of systems and methods are disclosed for cleaning a wellbore ahead of a well tool. The well tool is deployed on a tubular conveyance to a depth into a well. An interior surface of the well is wiped ahead of the well tool to dislodge debris from the interior surface of the well as the tubular conveyance advances downhole. The debris is filtered ahead of the well tool as the tubular conveyance advances downhole to keep the filtered debris away from the well tool. The well tool may then be used to perform a tool function when the tubular conveyance has reached the depth, without being affected by the filtered debris.

A variety of systems and methods are disclosed for cleaning a wellbore ahead of a well tool. The well tool is deployed on a tubular conveyance to a depth into a well. An interior surface of the well is wiped ahead of the well tool to dislodge debris from the interior surface of the well as the tubular conveyance advances downhole. The debris is filtered ahead of the well tool as the tubular conveyance advances downhole to keep the filtered debris away from the well tool. The well tool may then be used to perform a tool function when the tubular conveyance has reached the depth, without being affected by the filtered debris.

A system includes a deployment device and an adjustable mill. The deployment device has a box end with internal threads. The adjustable mill has a tubular body, a cylinder, and a lock ring. The tubular body has a lateral end and a pin end. The pin end has external threads, the lateral end is partially enveloped by cutters, and the lateral end comprises an inner wall defining an orifice. The cylinder is movably disposed within the orifice. The cylinder is partially enveloped by the cutters. The lock ring is disposed circumferentially around the cylinder. The lock ring interacts with a lock ring seat machined into the inner wall of the lateral end to place the adjustable mill in a mode. The internal threads of the adjustable mill and the external threads of the deployment device interact to form a connection between the adjustable mill and the deployment device.

A system includes a deployment device and an adjustable mill. The deployment device has a box end with internal threads. The adjustable mill has a tubular body, a cylinder, and a lock ring. The tubular body has a lateral end and a pin end. The pin end has external threads, the lateral end is partially enveloped by cutters, and the lateral end comprises an inner wall defining an orifice. The cylinder is movably disposed within the orifice. The cylinder is partially enveloped by the cutters. The lock ring is disposed circumferentially around the cylinder. The lock ring interacts with a lock ring seat machined into the inner wall of the lateral end to place the adjustable mill in a mode. The internal threads of the adjustable mill and the external threads of the deployment device interact to form a connection between the adjustable mill and the deployment device.