Abstract: A wellbore debris removal apparatus comprises a crossover sub having a first sub end and a second sub end, wherein the crossover sub includes at least one slotted mechanism and includes a fluid passageway extending from the first sub end to the second sub end. The wellbore debris removal apparatus comprises a debris removal tube having at least one lug and a tube end to be placed in the crossover sub such that the debris removal tube is engaged with the at least one slotted mechanism of the crossover sub via the at least one lug.

Abstract: A wellbore debris removal apparatus comprises a crossover sub having a first sub end and a second sub end, wherein the crossover sub includes at least one slotted mechanism and includes a fluid passageway extending from the first sub end to the second sub end. The wellbore debris removal apparatus comprises a debris removal tube having at least one lug and a tube end to be placed in the crossover sub such that the debris removal tube is engaged with the at least one slotted mechanism of the crossover sub via the at least one lug.

Abstract: This disclosure provides a downhole debris removal apparatus, a method for assembling a downhole debris removal apparatus, and a well system including the same. The downhole debris removal apparatus, in one aspect, includes a crossover sub, the crossover sub having a first sub end with one of a sub pin thread or sub box thread, a second sub end with the other of the sub box thread or sub pin thread, and a fluid passageway extending from the first sub end to the second sub end. The downhole debris removal apparatus, according to this aspect, further includes a debris removal tube having a first tube end and a second tube end, the first tube end removably engaged with the crossover sub between the first sub end and the second end.

Abstract: This disclosure provides a downhole debris removal apparatus, a method for assembling a downhole debris removal apparatus, and a well system including the same. The downhole debris removal apparatus, in one aspect, includes a crossover sub, the crossover sub having a first sub end with one of a sub pin thread or sub box thread, a second sub end with the other of the sub box thread or sub pin thread, and a fluid passageway extending from the first sub end to the second sub end. The downhole debris removal apparatus, according to this aspect, further includes a debris removal tube having a first tube end and a second tube end, the first tube end removably engaged with the crossover sub between the first sub end and the second end.

Abstract: Disclosed is a torque limiter having driver mandrel and driven axially aligned mandrels, a piston movable into and out of an engaged position wherein the driver and driven mandrels are coupled together to transmit torque there between. Hydraulically locking the movable piston in an engaged position. Disengaging the hydraulic lock when during rotation when a specified torque magnitude is exceeded to allow relative rotation between the mandrels. Resetting the torque limiter by hydraulically locking the piston in the engaging position when relative rotation ceases or is reduced.

Abstract: Disclosed is a torque limiter having driver mandrel and driven axially aligned mandrels, a piston movable into and out of an engaged position wherein the driver and driven mandrels are coupled together to transmit torque there between. Hydraulically locking the movable piston in an engaged position. Disengaging the hydraulic lock when during rotation when a specified torque magnitude is exceeded to allow relative rotation between the mandrels. Resetting the torque limiter by hydraulically locking the piston in the engaging position when relative rotation ceases or is reduced.

Abstract: Disclosed is a torque limiter having driver mandrel and driven axially aligned mandrels, a piston movable into and out of an engaged position wherein the driver and driven mandrels are coupled together to transmit torque there between. Hydraulically locking the movable piston in an engaged position. Disengaging the hydraulic lock when during rotation when a specified torque magnitude is exceeded to allow relative rotation between the mandrels. Resetting the torque limiter by hydraulically locking the piston in the engaging position when relative rotation ceases or is reduced.

Abstract: Disclosed is a downhole knock-out tool (900) for use in a tubing string (702) with a power head (704) for creating reverse flow. The tool has a cylindrical housing (910) with an inner tube (920) in the housing directing well fluids against a knock-out (940) or deflector cone to accumulate debris in the annulus (926) formed between the housing and tube.

Abstract: A power head for connection in a tubing string suspended in a subterranean location in a wellbore is useful for removing debris from the wellbore. When the power head is in the closed position, well fluids pumped down the tubing string will flow through the power head. When the power head is moved to the open position by dropping a actuator ball onto a seat in the power head, the power head creates flow down along the annulus to circulate debris laden well fluids into a catch apparatus such as a catch basket or screen. In the open position, nozzles and the eductor create the reverse flow.

Abstract: Disclosed is a downhole well filter (800) and method of use in a tubing string with a power head (704) for creating reverse flow. The filter assembly includes an inner pipe (820) into which fluid flow is directed. The inner pipe is positioned within a cylindrical screen member (830). The well fluid flows through the screen member and debris from the fluid is deposited in the annulus (832) between the inner pipe and screen member. The screen member has a cap (860) at its upper end to prevent fluid from escaping from the upper end of the screen member. The cap may have a pop off valve (870) so fluid can escape from the screen member when the screen becomes clogged with debris or pressure builds within the screen member.

Abstract: A well tool (100) for use in cleaning a well of fluids and debris characterized by one or more wiper elements (30) for swabbing the wellbore and internal passageways (11, 15) and valves (70, 72) in the tool, permitting forward and reverse fluid circulation through the tool to bypass the wiper elements.

Abstract: Disclosed is a torque limiter having driver mandrel and driven axially aligned mandrels, a piston movable into and out of an engaged position wherein the driver and driven mandrels are coupled together to transmit torque there between. Hydraulically locking the movable piston in an engaged position. Disengaging the hydraulic lock when during rotation when a specified torque magnitude is exceeded to allow relative rotation between the mandrels. Resetting the torque limiter by hydraulically locking the piston in the engaging position when relative rotation ceases or is reduced.

Abstract: Disclosed is a torque limiter having driver mandrel and driven axially aligned mandrels, a piston movable into and out of an engaged position wherein the driver and driven mandrels are coupled together to transmit torque there between. Hydraulically locking the movable piston in an engaged position. Disengaging the hydraulic lock when during rotation when a specified torque magnitude is exceeded to allow relative rotation between the mandrels. Resetting the torque limiter by hydraulically locking the piston in the engaging position when relative rotation ceases or is reduced.

Abstract: Disclosed is a bypass tool for a tubing string a wellbore. The bypass tool has a tubular body with ports in the body wall to inject fluid into an annulus. An axially shiftable sleeve is mounted to control flow through the ports. Spring-loaded detents in the body engage openings in the sleeve. In operation, the bypass tool is run into the wellbore in the closed position with the sleeve closing the ports. When bypass flow is desired, an actuation ball is pumped down the wellbore and engages the detents, unlocking the sleeve to shift to where ports in the sleeve align with ports in the mandrel. To return the bypass tool to the closed position, a second ball of the same diameter as the first ball is pumped down the well to engage and depress the detents to allow the sleeve to shift to a closed position.

Abstract: A bypass valve for use in tubing string which can be repeatedly opened and closed to selectively provide bypass fluid flow between the interior of the tubing string and the annulus to assist in flowing debris. The valve uses hardened valve elements which can be opened and closed while flowing fluids under pressure through the tubing string. The valve is actuated by placing the tubing string in a sufficient weight down condition to operate the valve. A trigger is provided to prevent unintended actuation of the bypass valve during use.

Abstract: An improved and enhanced spring loaded downhole tool for cleaning well casing bores comprising a mandrel, at least a first insert having a passageway therethrough, and at least a second insert, wherein both the first insert and the second insert are selected from at least one of a spring loaded scraper insert and at least one wire brush insert, and further wherein the first insert and the second insert are slidingly received within a slot on a first mounting portion on the mandrel and a slot on a second mounting portion on the mandrel, from the outermost respective ends, and wherein the first insert is secured by a first retaining sleeve and the second insert is secured by a second retaining sleeve. Also disclosed is a unique method for cleaning a section of casing with a downhole tool, as herein disclosed.

Abstract: Disclosed is a downhole knock-out tool (900) for use in a tubing string (702) with a power head (704) for creating reverse flow. The tool has a cylindrical housing (910) with an inner tube (920) in the housing directing well fluids against a knock-out (940) or deflector cone to accumulate debris in the annulus (926) formed between the housing and tube.

Abstract: Disclosed is a power head for connection in a tubing string suspended in a subterranean location in a wellbore for use in methods removing debris from the wellbore. When the power head is in the closed position, well fluids pumped down the tubing string will flow through the power head. When the power head is moved to the open position by dropping a actuator ball onto a seat in the power head, the power head creates flow down along the annulus to circulate debris laden well fluids into a catch apparatus such as a catch basket or screen. In the open position, nozzles and the eductor create the reverse flow.

Abstract: Disclosed is a downhole well filter (800) and method of use in a tubing string with a power head (704) for creating reverse flow. The filter assembly includes an inner pipe (820) into which fluid flow is directed. The inner pipe is positioned within a cylindrical screen member (830). The well fluid flows through the screen member and debris from the fluid is deposited in the annulus (832) between the inner pipe and screen member. The screen member has a cap (860) at its upper end to prevent fluid from escaping from the upper end of the screen member. The cap may have a pop off valve (870) so fluid can escape from the screen member when the screen becomes clogged with debris or pressure builds within the screen member.

Abstract: An improved and enhanced spring loaded downhole tool for cleaning well casing bores comprising a mandrel, at least a first insert having a passageway therethrough, and at least a second insert, wherein both the first insert and the second insert are selected from at least one of a spring loaded scraper insert and at least one wire brush insert, and further wherein the first insert and the second insert are slidingly received within a slot on a first mounting portion on the mandrel and a slot on a second mounting portion on the mandrel, from the outermost respective ends, and wherein the first insert is secured by a first retaining sleeve and the second insert is secured by a second retaining sleeve. Also disclosed is a unique method for cleaning a section of casing with a downhole tool, as herein disclosed.