A downhole torch system and method of use includes a cylindrical housing, a protective material provided on at least one of the cylindrical housing and the fuel load, and a fuel load located within the cylindrical housing. The protective material is provided between the fuel load and the cylindrical housing to protect the cylindrical housing from adverse effects caused by the reaction of the burning fuel and/or the subsequent production of combustion products for cutting and/or perforating processes during operation of the torch system. The protective material significantly improves the cutting and/or perforating performance of the torch system.

A method of removing a liner of a well, the liner comprising a liner material. The method comprises providing a seal in the well for defining an upper and/or lower boundary of a removal space, the space being delimited by at least the seal and the liner and providing oxygen or an oxygen releasing compound in the space. The method further comprises providing an ignition module for igniting the liner material near a lower boundary of the space and activating the ignition for igniting the liner material.

A method of removing a liner of a well, the liner comprising a liner material. The method comprises providing a seal in the well for defining an upper and/or lower boundary of a removal space, the space being delimited by at least the seal and the liner and providing oxygen or an oxygen releasing compound in the space. The method further comprises providing an ignition module for igniting the liner material near a lower boundary of the space and activating the ignition for igniting the liner material.

A downhole torch system and method of use includes a cylindrical housing, a protective material provided on at least one of the cylindrical housing and the fuel load, and a fuel load located within the cylindrical housing. The protective material is provided between the fuel load and the cylindrical housing to protect the cylindrical housing from adverse effects caused by the reaction of the burning fuel and/or the subsequent production of combustion products for cutting and/or perforating processes during operation of the torch system. The protective material significantly improves the cutting and/or perforating performance of the torch system.

A cutting torch comprises a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to generate ignition gas from heating oxygen and fuel gas, a heating oxygen bypass channel originating from the heating oxygen channel and coupled to the ignition mixer, the heating oxygen bypass channel configured to supply heating oxygen to the ignition mixer, a fuel gas bypass channel originating from the fuel gas channel and coupled to the ignition mixer, the fuel gas bypass channel configured to supply fuel gas to the ignition mixer, and a fuel gas shut-off valve located on the fuel gas bypass channel. The shut-off valve is configured to turn off the supply of the fuel gas to the ignition mixer, and the ignition mixer supplies only heating oxygen to the cutting oxygen channel.

A cutting torch comprises a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to generate ignition gas from heating oxygen and fuel gas, a heating oxygen bypass channel originating from the heating oxygen channel and coupled to the ignition mixer, the heating oxygen bypass channel configured to supply heating oxygen to the ignition mixer, a fuel gas bypass channel originating from the fuel gas channel and coupled to the ignition mixer, the fuel gas bypass channel configured to supply fuel gas to the ignition mixer, and a fuel gas shut-off valve located on the fuel gas bypass channel. The shut-off valve is configured to turn off the supply of the fuel gas to the ignition mixer, and the ignition mixer supplies only heating oxygen to the cutting oxygen channel.

An oxy-acetylene cutting torch tip cleaner includes an elongated body portion with at least one actuator and at least one associated housing bore for storing a cleaning pin. Each cleaning pin is coupled to an actuator movable from a first position with the cleaning pin contained in the housing bore to a second position with the cleaning pin extending from the housing bore, for abrading and cleaning the cutting torch tip. Each actuator, coupled to its cleaning pin with a slider, is biased to the first position and a lock engages each actuator in the second position such that when the lock is disengaged from the actuator at the second position with the cleaning tip extended from the body, the actuator automatically returns to the first position thereby retracting the cleaning pin back into the housing bore.

An oxy-acetylene cutting torch tip cleaner includes an elongated body portion with at least one actuator and at least one associated housing bore for storing a cleaning pin. Each cleaning pin is coupled to an actuator movable from a first position with the cleaning pin contained in the housing bore to a second position with the cleaning pin extending from the housing bore, for abrading and cleaning the cutting torch tip. Each actuator, coupled to its cleaning pin with a slider, is biased to the first position and a lock engages each actuator in the second position such that when the lock is disengaged from the actuator at the second position with the cleaning tip extended from the body, the actuator automatically returns to the first position thereby retracting the cleaning pin back into the housing bore.

A swivel head assembly for a dual head oxy-fuel torch which incorporates a fixed oxygen delivery head and a 360 degree rotatable fuel delivery head mounted coaxially upon the oxygen delivery head, such that regardless of whether the torch is pushed forward, drawn backward or manipulated to either side, the fuel delivery head can be readily repositioned relative to the oxygen delivery head so as to always lead the delivery of oxygen for preheating, thus accommodating ease of arm movement and avoiding the need for cumbersome body movement and positioning around the target cutting surface.

A swivel head assembly for a dual head oxy-fuel torch which incorporates a fixed oxygen delivery head and a 360 degree rotatable fuel delivery head mounted coaxially upon the oxygen delivery head, such that regardless of whether the torch is pushed forward, drawn backward or manipulated to either side, the fuel delivery head can be readily repositioned relative to the oxygen delivery head so as to always lead the delivery of oxygen for preheating, thus accommodating ease of arm movement and avoiding the need for cumbersome body movement and positioning around the target cutting surface.