In one aspect the present invention may be said to comprise a drill rod for assembly with other drill rods to form a drillstring used for fluid reverse circulation drilling comprising: an outer drill rod comprising a bore that is tapered at each end, an inner drill rod within the outer drill rod, and a retention member removably coupled to each end of the inner drill rod to retain the inner drill rod between the tapered ends of the outer drill rod.
E21B 21/12 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur utilisant des tubes de forage comprenant plusieurs passages pour les fluides, p. ex. systèmes en circuit fermé
E21B 17/18 - Tubes comprenant plusieurs passages pour les fluides
E21B 25/00 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes
E21B 17/04 - AccouplementsJoints entre tige et trépan, ou entre tiges
F16L 39/00 - Raccords ou accessoires de raccordement pour tuyaux à double paroi ou à canaux multiples ou pour assemblages de tuyaux
A drill rod for assembly with other drill rods to form a drillstring used for fluid reverse circulation drilling comprising: an outer drill rod comprising a lightweight drill rod used in core drilling with a bore, an inner drill rod comprising a bore, a first coupling member removably coupled to one end of the inner drill rod, a second coupling member removably coupled to a second end of the inner drill rod, wherein the first and second coupling members centre the inner drill rod within the outer drill rod.
Disclosed is a drill bit for coupling in use to an RC drilling apparatus, the drill bit comprising: an annular drill bit that is rotatable to cut a formation bore face, a concentric drill bit, wherein: the annular drill bit comprises a body and an annular cutting element with a continuous bit face configured such that in use, when the bit face seats on the bore face, drilling fluid that flows through the annular drill bit is retarded from leaking from the annular drill bit through the bit face/bore face interface.
E21B 10/38 - Trépans à percussion caractérisés par des canaux ou des buses pour les fluides de forage
E21B 10/60 - Trépans caractérisés par des canaux ou des buses pour les fluides de forage
E21B 10/62 - Trépans caractérisés par des parties, p. ex. des éléments coupants, amovibles ou réglables
E21B 10/42 - Trépans rotatifs du type racleur comportant des dents, des lames ou des organes de coupe similaires, p. ex. du type à fourche, en queue de poisson
The present invention relates to a wireline retrieval head assembly and downhole tool, the wireline retrieval head assembly for coupling to the downhole tool for installation in and retrieval from downhole in a mineral industry field of use, wherein a first of the wireline retrieval head assembly and downhole tool has a retention member that has or is configured to receive a pivot member and a second of the wireline retrieval head assembly and downhole tool has a complementary link with an opening for receiving the pivot member, such that the link can be coupled to the retention member to create a pivot coupling to allow for articulation between the wireline retrieval head assembly and the downhole tool during installation and retrieval of the downhole tool, and the link can be removed from the retention member to remove the downhole tool from the wireline retrieval head assembly.
E21B 23/14 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour déplacer un câble ou un outil manœuvré par câble, p. ex. pour les opérations de diagraphie ou de perforation dans les puits déviés
(1) Apparatus for use in drilling, namely mechanical force generators including mechanical oscillators, rotors, cams, followers, magnets, housings, drill bits, drill strings, and energy pulse assisted drill rods for use in mining
Apparatus for use in drilling, namely mechanical force generators including mechanical oscillators, rotors, cams, followers, magnets, housings, drill bits, drill strings, and/or energy pulse assisted drill rods for use in mining
In one aspect the present invention comprises a wireline retrievable coring apparatus for incorporation into a drillstring, comprising: a housing for coupling to a drill string housing, a drill bit, a turbine comprising a stator coupled to the housing and a rotor within the stator, the rotor coupled to rotate the drill bit, a core barrel through the turbine and in communication with the drill bit for capturing a core, a fluid path to the drill bit via the turbine to rotate the turbine, wherein the core barrel is rotationally isolated from the rotor and is fluidly isolated from the fluid path.
The present invention relates to a wireline retrieval head assembly and downhole tool, the wireline retrieval head assembly for coupling to the downhole tool for installation in and retrieval from downhole in a mineral industry field of use, wherein a first of the wireline retrieval head assembly and downhole tool has a retention member that has or is configured to receive a pivot member and a second of the wireline retrieval head assembly and downhole tool has a complementary link with an opening for receiving the pivot member, such that the link can be coupled to the retention member to create a pivot coupling to allow for articulation between the wireline retrieval head assembly and the downhole tool during installation and retrieval of the downhole tool, and the link can be removed from the retention member to remove the downhole tool from the wireline retrieval head assembly.
A drill bit for coupling in use downhole drilling apparatus, the drill bit comprising: an annular coring drill bit that is rotatable to cut a formation bore face to create a core plug, a concentric drill bit that can be repeatedly axially moved (such as by oscillation (such as a vibration) and/or impact) to break the core plug.
E21B 10/26 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs
In one aspect the present invention comprises a wireline retrievable coring apparatus for incorporation into a drillstring, comprising: a housing for coupling to a drill string housing, a drill bit, a turbine comprising a stator coupled to the housing and a rotor within the stator, the rotor coupled to rotate the drill bit, a core barrel through the turbine and in communication with the drill bit for capturing a core, a fluid path to the drill bit via the turbine to rotate the turbine, wherein the core barrel is rotationally isolated from the rotor and is fluidly isolated from the fluid path.
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.
Disclosed is a mechanical force generator for use in a drillstring that provides a sinusoidal or near sinusoidal oscillating output, comprising: a rotatable cam plate connected to a mass, the cam plate having two opposed oblique bearing surfaces rotatable through a bearing, wherein upon rotation, the two opposed oblique bearing surfaces cam against the bearing to oscillate the mass longitudinally, wherein the bearing comprises opposing bearings for bearing against the opposed oblique bearing surfaces and wherein at least one bearing adjusts to follow the respective opposed bearing surface and maintain engagement.
E21B 28/00 - Dispositions pour la génération de vibrations pour les trous de forage ou les puits, p. ex. pour activer la production
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 25/00 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes
Disclosed is a mechanical force generator for use in a drillstring that provides a sinusoidal or near sinusoidal oscillating output, comprising: a rotatable cam plate connected to a mass, the cam plate having two opposed oblique bearing surfaces rotatable through a bearing, wherein upon rotation, the two opposed oblique bearing surfaces cam against the bearing to oscillate the mass longitudinally, wherein the bearing comprises opposing bearings for bearing against the opposed oblique bearing surfaces and wherein at least one bearing adjusts to follow the respective opposed bearing surface and maintain engagement.
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 28/00 - Dispositions pour la génération de vibrations pour les trous de forage ou les puits, p. ex. pour activer la production
E21B 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
A retrievable core sampling assembly for latching to or relative to a rotatable tubular housing of a core sampling apparatus to allow the capture and retrieval of a core from a subterranean formation, the assembly comprising or including: a core catcher barrel for a core, the barrel being rotationally isolated from the tubular housing and cooperable with a core taking bit coupled to the rotatable tubular housing to retain a core, and a hammer for providing impact to the core taking bit along a longitudinal impact path that is or is substantially decoupled from the core catcher barrel so that when latched, rotation and impact of the core taking bit captures and passes core material from the formation to the core catcher barrel in manner that isolates a core in the core catcher barrel from rotation and impact forces.
E21B 25/02 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes le réceptacle de la carotte pouvant être introduit dans le trou de forage ou en être enlevé sans retirer le tube de forage
E21B 6/04 - Moyens d'entraînement séparés de la percussion et de la rotation
A device in place as, or suitable for use as, a vibrational tool of or in a downhole assembly, the device having a first magnetic assembly which is to be, or can be, rotated relative to a second magnetic assembly and which, when so rotated, causes the second magnetic assembly to oscillate and/or reciprocate at least substantially in an axial manner; wherein the oscillating and/or reciprocating magnetic assembly, at least substantially, at either one end, or both ends, is attached to and constrained in its oscillations and/or reciprocation by a compliant member thereby allowing the output force to be distributed to the outer body of the vibrational tool and/or any attached uphole and/or downhole tooling, from the compression and extension of the compliant member in a substantially sinusoidal manner.
A retrievable core sampling assembly for latching to or relative to a rotatable tubular housing 1 of a core sampling apparatus to allow the capture and retrieval of a core 19 from a subterranean formation, the assembly comprising or including: a core catcher barrel 18 for a core 19, the barrel 18 being rotationally isolated from the tubular housing 1 and cooperable with a core taking bit 2 coupled to the rotatable tubular housing 1 to retain a core 19, and a hammer 100 for providing impact to the core taking bit 2 along a longitudinal impact path that is or is substantially decoupled from the core catcher barrel 8 so that when latched, rotation and impact of the core taking bit 2 captures and passes core material from the formation to the core catcher barrel 2 in manner that isolates a core 10 9 in the core catcher barrel 18 from rotation and impact forces.
E21B 25/02 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes le réceptacle de la carotte pouvant être introduit dans le trou de forage ou en être enlevé sans retirer le tube de forage
23.
Mechanical force generator for a downhole excitation apparatus
An excitation apparatus suitable for use downhole having interengaged masses at least in part confined or guided so as to be movable as an interengaged assembly on an axis, one mass (“rotatable mass”) being rotatable relative to the other mass about the axis to cyclically vary the axial length of the assembly of the interengaged masses, a rotary drive, and an interposed spring (of any kind) between the rotary drive and the rotatable mass able to transmit torque from the rotary drive to the rotatable mass yet vary in its extent responsive to the interengaged masses.
E21B 31/00 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits
E21B 6/04 - Moyens d'entraînement séparés de la percussion et de la rotation
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 4/10 - Moyens de percussion mis en œuvre au fond du trou, p. ex. marteaux le mouvement de rotation continu dans une seule direction de l'arbre ou des tiges de forage produisant des chocs consécutifs
E21B 28/00 - Dispositions pour la génération de vibrations pour les trous de forage ou les puits, p. ex. pour activer la production
E21B 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
A boring tool having downhole hammered impact elements that present to the bore face from platforms or plateaux of the work face of the tool, such work face having shear cutters able to benefit over the bore face from disruption caused by the impact elements.
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.
Apparatus, methods and uses that allow extended reach drilling by virtue of the provision in the drillstring and to downhole tools collective vibrations, not tuned specifically to a single resonant frequency, from a hammer assembly that provides vibrations of different frequency ranges.
A device in place as, or suitable for use as, a vibrational tool of or in a downhole assembly, the device having a first magnetic assembly which is to be, or can be, rotated relative to a second magnetic assembly and which, when so rotated, causes the second magnetic assembly to oscillate and/or reciprocate at least substantially in an axial manner; wherein the oscillating and/or reciprocating magnetic assembly, at least substantially, at either one end, or both ends, is attached to and constrained in its oscillations and/or reciprocation by a compliant member thereby allowing the output force to be distributed to the outer body of the vibrational tool and/or any attached uphole and/or downhole tooling, from the compression and extension of the compliant member in a substantially sinusoidal manner.
E21B 1/22 - Forage par percussion avec un organe d'impulsion à mouvement alternatif entraîné par des électro-aimants
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 7/00 - Procédés ou matériels particuliers pour le forage
B06B 1/00 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 4/06 - Moyens de percussion mis en œuvre au fond du trou, p. ex. marteaux
E21B 6/00 - Moyens d'entraînement pour forage avec action combinée de percussion et de rotation
F03B 9/00 - "Machines" ou machines motrices du type à chaîne sans fin
29.
MECHANICAL FORCE GENERATOR FOR A DOWNHOLE EXCITATION APPARATUS
An excitation apparatus suitable for use downhole having interengaged masses at least in part confined or guided so as to be movable as an interengaged assembly on an axis, one mass ("rotatable mass") being rotatable relative to the other mass about the axis to cyclically vary the axial length of the assembly of the interengaged masses, a rotary drive, and an interposed spring (of any kind) between the rotary drive and the rotatable mass able to transmit torque from the rotary drive to the rotatable mass yet vary in its extent responsive to the interengaged masses.
E21B 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 28/00 - Dispositions pour la génération de vibrations pour les trous de forage ou les puits, p. ex. pour activer la production
E21B 6/00 - Moyens d'entraînement pour forage avec action combinée de percussion et de rotation
E21B 4/00 - Moyens d'entraînement dans le trou de forage
B25D 1/00 - Marteaux à mainTêtes de marteaux de formes ou de matières particulières
B25D 9/00 - Outils portatifs à percussion entraînés par la pression d'un fluide, p. ex. ayant plusieurs têtes d'outils à percussion actionnées simultanément
B25D 11/00 - Outils portatifs à percussion entraînés par moteur électrique
B25D 15/00 - Outils portatifs à percussion à éléments d'impact rotatifs ou animés par la force centrifuge
A hybrid drill bit having reliance on features rotatable together, yet movable relative to each other axially of the rotation axis, as a result of energy inputs, of (i) intermittently percussively striking the formation with first wear resisting protuberant features; and (ii) shear cutting, scraping, sweeping and/or the like the weakened formation and any chips generated by the percussive action (i.e. of (i)) with second wear resisting features; wherein the percussive features (i) are features carried so as to emerge, or emerge more proudly, through a profiled face having the other features (ii); and wherein the percussive features (i) are fewer in number than the features (ii).
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
A vibrational apparatus for a downhole assembly comprising first and second assemblies, each of the said assemblies having magnetic arrays around a common axis, wherein a fluid feed or other suitable drive causses a relative rotation between the assemblies, which relative rotation generates a vibration resulting in interactions between the magnetic arrays, thereby causing a reciprocating rectilinear movement of the assemblies along or parallel to the common axis.
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 (4,5) and wherein there is, or can be, a use of a system (6,7) (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.
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 6/08 - Moyens d'entraînement séparés de la percussion et de la rotation
E21B 1/22 - Forage par percussion avec un organe d'impulsion à mouvement alternatif entraîné par des électro-aimants
33.
A VIBRATIONAL OR A DOWNHOLE APPARATUS WITH A MAGNETICALLY COUPLED DRIVE
Downhole hammering or other vibrational apparatus comprising or including in, with respect to a hole axis, a rotatable input shaft (9) aligned with or aligned parallel to the hole axis, a rotatable shuttle assembly having two structures able to rotate relative to each other (e.g. at least one to the other) to cause interacting magnetic arrays (13, 14) to cause a relative shuttling of such structures, the shuttling axis being aligned to or substantially parallel to the hole axis, an at least substantially fluid tight enclosure (1, 3, 4, 5, 6 and 7) about the rotatable shuttle assembly; wherein the shaft (9) directly or indirectly rotates one or more magnets (10, 11) and one of the structures (e.g. nominally "the shuttle") of the shuttle assembly within the substantially fluid type enclosure carries a magnet or magnets (12) to interact with that, or those, of the input shaft (9) whereby, without direct contact, rotation of the shaft (9) by magnetic interaction can rotate the shuttle.
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.
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.
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 1/22 - Forage par percussion avec un organe d'impulsion à mouvement alternatif entraîné par des électro-aimants
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
B06B 1/12 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie mécanique fonctionnant avec des systèmes impliquant des masses en mouvement alternatif
E21B 6/00 - Moyens d'entraînement pour forage avec action combinée de percussion et de rotation
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.
Vertical and/or directional drilling apparatus where compliant support (air bag, magnetic or the like) is provided for a vibrational head and drive assembly that carries the drill string. With the vibrational head having a shuttle from which vibration is not directly taken and with the compliant support allowing pull back in the directional mode several advantages arise.
Disclosed is a mechanical force generator for use in a drillstring that provides a sinusoidal or near sinusoidal oscillating output, comprising: a rotatable cam plate connected to a mass, the cam plate having two opposed oblique bearing surfaces rotatable through a bearing, wherein upon rotation, the two opposed oblique bearing surfaces cam against the bearing to oscillate the mass longitudinally, wherein the bearing comprises opposing bearings for bearing against the opposed oblique bearing surfaces and wherein at least one bearing adjusts to follow the respective opposed bearing surface and maintain engagement.
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 28/00 - Dispositions pour la génération de vibrations pour les trous de forage ou les puits, p. ex. pour activer la production
E21B 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
The present invention relates to a wireline retrieval head assembly and downhole tool, the wireline retrieval head assembly for coupling to the downhole tool for installation in and retrieval from downhole in a mineral industry field of use, wherein a first of the wireline retrieval head assembly and downhole tool has a retention member that has or is configured to receive a pivot member and a second of the wireline retrieval head assembly and downhole tool has a complementary link with an opening for receiving the pivot member, such that the link can be coupled to the retention member to create a pivot coupling to allow for articulation between the wireline retrieval head assembly and the downhole tool during installation and retrieval of the downhole tool, and the link can be removed from the retention member to remove the downhole tool from the wireline retrieval head assembly.
In one aspect the present invention may be said to comprise a drill rod for assembly with other drill rods to form a drillstring used for fluid reverse circulation drilling comprising: an outer drill rod comprising a bore that is tapered at each end, an inner drill rod within the outer drill rod, and a retention member removably coupled to each end of the inner drill rod to retain the inner drill rod between the tapered ends of the outer drill rod.
E21B 17/04 - AccouplementsJoints entre tige et trépan, ou entre tiges
E21B 17/18 - Tubes comprenant plusieurs passages pour les fluides
E21B 21/12 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur utilisant des tubes de forage comprenant plusieurs passages pour les fluides, p. ex. systèmes en circuit fermé
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.
B06B 1/12 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie mécanique fonctionnant avec des systèmes impliquant des masses en mouvement alternatif
E21B 1/22 - Forage par percussion avec un organe d'impulsion à mouvement alternatif entraîné par des électro-aimants
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 6/00 - Moyens d'entraînement pour forage avec action combinée de percussion et de rotation
E21B 7/00 - Procédés ou matériels particuliers pour le forage
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
42.
MECHANICAL FORCE GENERATOR FOR A DOWNHOLE EXCITATION APPARATUS
An excitation apparatus suitable for use downhole having interengaged masses at least in part confined or guided so as to be movable as an interengaged assembly on an axis, one mass ("rotatable mass") being rotatable relative to the other mass about the axis to cyclically vary the axial length of the assembly of the interengaged masses, a rotary drive, and an interposed spring (of any kind) between the rotary drive and the rotatable mass able to transmit torque from the rotary drive to the rotatable mass yet vary in its extent responsive to the interengaged masses.
B25D 1/00 - Marteaux à mainTêtes de marteaux de formes ou de matières particulières
B25D 9/00 - Outils portatifs à percussion entraînés par la pression d'un fluide, p. ex. ayant plusieurs têtes d'outils à percussion actionnées simultanément
B25D 11/00 - Outils portatifs à percussion entraînés par moteur électrique
B25D 15/00 - Outils portatifs à percussion à éléments d'impact rotatifs ou animés par la force centrifuge
E21B 4/00 - Moyens d'entraînement dans le trou de forage
E21B 6/00 - Moyens d'entraînement pour forage avec action combinée de percussion et de rotation
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 28/00 - Dispositions pour la génération de vibrations pour les trous de forage ou les puits, p. ex. pour activer la production
E21B 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
A device in place as, or suitable for use as, a vibrational tool of or in a downhole assembly, the device having a first magnetic assembly which is to be, or can be, rotated relative to a second magnetic assembly and which, when so rotated, causes the second magnetic assembly to oscillate and/or reciprocate at least substantially in an axial manner; wherein the oscillating and/or reciprocating magnetic assembly, at least substantially, at either one end, or both ends, is attached to and constrained in its oscillations and/or reciprocation by a compliant member thereby allowing the output force to be distributed to the outer body of the vibrational tool and/or any attached uphole and/or downhole tooling, from the compression and extension of the compliant member in a substantially sinusoidal manner.
B06B 1/00 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
E21B 1/22 - Forage par percussion avec un organe d'impulsion à mouvement alternatif entraîné par des électro-aimants
E21B 7/00 - Procédés ou matériels particuliers pour le forage
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
In one aspect the present invention comprises a wireline retrievable coring apparatus for incorporation into a drillstring, comprising: a housing for coupling to a drill string housing, a drill bit, a turbine comprising a stator coupled to the housing and a rotor within the stator, the rotor coupled to rotate the drill bit, a core barrel through the turbine and in communication with the drill bit for capturing a core, a fluid path to the drill bit via the turbine to rotate the turbine, wherein the core barrel is rotationally isolated from the rotor and is fluidly isolated from the fluid path.
A drill rod for assembly with other drill rods to form a drillstring used for fluid reverse circulation drilling comprising: an outer drill rod comprising a lightweight drill rod used in core drilling with a bore, an inner drill rod comprising a bore, a first coupling member removably coupled to one end of the inner drill rod, a second coupling member removably coupled to a second end of the inner drill rod, wherein the first and second coupling members centre the inner drill rod within the outer drill rod.
A vibrational apparatus for a downhole assembly comprising first and second assemblies, each of the said assemblies having magnetic arrays around a common axis, wherein a fluid feed or other suitable drive causses a relative rotation between the assemblies, which relative rotation generates a vibration resulting in interactions between the magnetic arrays, thereby causing a reciprocating rectilinear movement of the assemblies along or parallel to the common axis.
A retrievable core sampling assembly for latching to or relative to a rotatable tubular housing 1 of a core sampling apparatus to allow the capture and retrieval of a core 19 from a subterranean formation, the assembly comprising or including: a core catcher barrel 18 for a core 19, the barrel 18 being rotationally isolated from the tubular housing 1 and cooperable with a core taking bit 2 coupled to the rotatable tubular housing 1 to retain a core 19, and a hammer 100 for providing impact to the core taking bit 2 along a longitudinal impact path that is or is substantially decoupled from the core catcher barrel 8 so that when latched, rotation and impact of the core taking bit 2 captures and passes core material from the formation to the core catcher barrel 2 in manner that isolates a core 10 9 in the core catcher barrel 18 from rotation and impact forces.
E21B 25/02 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes le réceptacle de la carotte pouvant être introduit dans le trou de forage ou en être enlevé sans retirer le tube de forage
