Abstract: A device for handling core samples during a core sample drilling operation is disclosed. In use the core sample is received in a string of inner tubes within a drill string. The device includes a clamp and a coupling mechanism. The clamp is configured to grip a lower inner tube below a joint between the lower inner tube and an adjacent upper inner tube of the string of inner tubes, with the lower tube received in the drill string and with the joint exposed above a top end of the drill string. The coupling mechanism is configured to engage the upper inner tube and/or the joint and operate to uncouple the upper inner tube from the lower inner tube.

Abstract: Disclosed is a vibratory apparatus for a drilling apparatus comprising: a housing, a rotor operable to rotate relative to the housing, the rotor comprising one or more sets of magnets, a shuttle engaged to enable movement longitudinally, the shuttle comprising one or more follower magnets, each arranged relative to a corresponding set of magnets in the rotor, wherein each set of magnets comprises magnets arranged around the rotor with a lateral spread such that on rotation the corresponding follower magnet on the shuttle will move longitudinally to follow one or more rotating magnets of the set, thus oscillating the shuttle longitudinally.

Abstract: Disclosed is a vibratory apparatus for a drilling apparatus comprising: a housing, a rotor operable to rotate relative to the housing, the rotor comprising one or more sets of magnets, a shuttle engaged to enable movement longitudinally, the shuttle comprising one or more follower magnets, each arranged relative to a corresponding set of magnets in the rotor, wherein each set of magnets comprises magnets arranged around the rotor with a lateral spread such that on rotation the corresponding follower magnet on the shuttle will move longitudinally to follow one or more rotating magnets of the set, thus oscillating the shuttle longitudinally.

Abstract: A downhole assembly able to generate a vibrational output reliant upon a fluid feed drive to cause relative rotation extending magnetic arrays and thereby a relative longitudinal vibration causing reciprocation.

Abstract: The use in a drillstring of a positive displacement motor (PDM) with both an output upwardly and an output downwardly to devices spaced at least by the PDM.

Abstract: Drilling apparatus having a drillstring and operable to rotate the drillstring and operable to provide vibration axially to the drill head. Relies upon vibrational apparatus positioned to provide the vibration reliant upon interactive magnetic arrays, as a consequence of the relative rotation caused by a mechanical input to at least one array or set of arrays of the vibrational apparatus. One of the arrays or sets of arrays moves synchronously, in rotation, with the drillstring when the drillstring is rotated.

Abstract: A downhole assembly able to generate a vibrational output reliant upon a fluid feed drive to cause relative rotation extending magnetic arrays and thereby a relative longitudinal vibration causing reciprocation.

Abstract: Vibrational apparatus to direct stress waves (eg. to a bit 2 or other downhole tool) by generating vibrations as a consequence of shuttling responsive to relative rotational movement between magnetic arrays and wherein there is, or can be, a use of a system (whether rebound, recoil, spring, pneumatic, magnetic or not) able at least in part to return acquired potential energy in addition to any acquired at the same time by the interacting magnetic arrays. A free travel distance can be provided for one of said components prior to the onset of any substantial collection of energy from the movement (relative) of that component in a direction (eg, uphole) for use in return travel (eg, downhole) preferably synchronized, or synchronizable, to enhance the return travel causing forces of any repulsive and/or attractive forces generated otherwise than by the said magnetic arrays.

Abstract: Drilling apparatus having a drillstring and operable to rotate the drillstring and operable to provide vibration axially to the drill head. Relies upon vibrational apparatus positioned to provide the vibration reliant upon interactive magnetic arrays, as a consequence of the relative rotation caused by a mechanical input to at least one array or set of arrays of the vibrational apparatus. One of the arrays or sets of arrays moves synchronously, in rotation, with the drillstring when the drillstring is rotated.

Abstract: A drive assembly suitable for a spindle connection to a drill string or other shaft, the assembly comprising or including a drive shaft, a shuttle rotatable under the action of the drive shaft but being slidable relative thereto, the shuttle carrying magnets, a containment assembly to constrain the shuttle to a shuttle axis, the containment assembly carrying magnets to co-act with those of the shuttle as the shuttle is rotated by the drive shaft thereby to cause the shuttling of the shuttle, a spindle not forming part of the shuttle arrangement to receive vibration from said containment assembly and/or said shuttle (e.g.; through a cushion of liquid), a carriage assembly on part of the spindle slidable on an axis coincident with and/or parallel to the spindle's rotational axis, and a drive carried by the carriage assembly to rotate the spindle or to rotate both the spindle and part of the carriage assembly.

Abstract: Apparatus and procedures whereby, downhole, a fluid is heatable as a consequence of heat exchange from a matrix downhole being heated responsive to downhole varied magnetic fields on the matrix. This can involve a fluid or mechanical input to rotate a magnetic array relative to the matrix, or vice versa.