EP1990502A2 - Device for driving the rotation of a driven tubular element, capable of receiving and carrying a fluid under pressure - Google Patents

Device for driving the rotation of a driven tubular element, capable of receiving and carrying a fluid under pressure Download PDF

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Publication number
EP1990502A2
EP1990502A2 EP08290420A EP08290420A EP1990502A2 EP 1990502 A2 EP1990502 A2 EP 1990502A2 EP 08290420 A EP08290420 A EP 08290420A EP 08290420 A EP08290420 A EP 08290420A EP 1990502 A2 EP1990502 A2 EP 1990502A2
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EP
European Patent Office
Prior art keywords
plates
tubular shaft
shaft
aforesaid
tubular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08290420A
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German (de)
French (fr)
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EP1990502A3 (en
Inventor
Jean-Claude Bourdon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dolfines SA
Original Assignee
Dietswell SA
Dietswell Engineering SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dietswell SA, Dietswell Engineering SA filed Critical Dietswell SA
Publication of EP1990502A2 publication Critical patent/EP1990502A2/en
Publication of EP1990502A3 publication Critical patent/EP1990502A3/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/022—Top drives
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints

Definitions

  • the present invention relates to a device for driving in rotation a driven tubular element adapted to receive and convey a fluid under pressure.
  • a head for gripping and rotating a rod (or drill string) used for drilling using a drilling rig wherein said head is suspended from a superstructure such as, for example, a drillpole.
  • top drive In general, it is known that the gripping and driving heads currently used (“top drive”) involve a body in which is rotatably mounted a tubular shaft provided in its lower part with coupling means in which can come to mate the upper end of a drill pipe.
  • This tubular shaft is connected at its upper part to a fluid intake circuit, for example slurry, via a rotary joint.
  • a fluid intake circuit for example slurry
  • the rotational drive of this tubular shaft is provided by means of a motor (usually an electric motor) oriented parallel to the shaft at a determined distance D.
  • the transmission between the motor and the shaft is provided by means of a pinion mounted on the rotary shaft of the motor which meshes with a pinion integral with the tubular shaft.
  • the distance D is equal to the sum of the spokes of the gables.
  • the object of the invention is therefore more particularly to eliminate these disadvantages.
  • a device for driving in rotation of a tubular element able to convey a pressurized fluid coming from an intake circuit comprising a rotatably mounted tubular shaft. in a support structure and one end of which comprises means for fixing said tubular element while the other end is connected via a rotary joint to said intake circuit, this tubular shaft being rotated by a motor comprising a stator and a rotor.
  • this device is characterized in that the aforesaid rotor has an annular shape and is secured to said tubular shaft coaxially with it while the stator is fixed to said structure substantially coaxially with said shaft.
  • the tubular shaft may also carry a brake disc associated with a jaw carried by the support structure.
  • the drilling rig 1 is integrated in a trailer of a semi-trailer 2 whose platform constitutes the platform.
  • This plate is equipped with retractable legs each comprising a ground support plate 3, 4 and telescopic columns 5, 6 actuated by hydraulic cylinders so as to constitute a "self-elevating structure on the ground" without substructure.
  • the cylinders In the retracted position, the cylinders are in the retracted state. In this position, the support plates 3, 4 extend above the ground and are optionally folded.
  • the trailer 2 is supported on its wheels and can be coupled to the tractor. In the deployed position of the cylinders, the support plates 3, 4 rest on the ground while the trailer 2 is raised as indicated figure 1 , the wheels 7 being above the ground.
  • the front part of the platform carries the technical elements 8 of the installation 1, in particular such as the engine (power unit), the compressor, the hydraulic power unit, pumping units and all the control, command and control systems. regulation.
  • the two rear uprights 13, 14 of the fixed part 11 are constituted by tubular elements of square section fixed by their lower parts on the platform by means of clamps.
  • the anterior amounts 15, 16 of the fixed portion 11 are in turn constituted by tubular elements of square section but of reduced dimensions compared to those of the posterior amounts. These anterior amounts are also fixed on the platform by means of flanges. of fixation.
  • the posterior uprights 20, 21 of the movable part 12 consist of profiled H-shaped section members whose parallel wings are located at a distance slightly greater than the width of one side of the rear uprights 13, 14 of the part. fixed 11.
  • the spacing between the uprights 13, 14 is provided so that they engage in the cavities of the uprights 20, 21 facing outwards.
  • Sliding means for example bearings, are provided for reducing the coefficients of friction between pairs of uprights 13, 14 and 20, 21.
  • the uprights 20, 21 of the movable part each carry at their ends a yoke in which is rotatably mounted at least one pulley P 1 , P 2 , the upper end of this movable part 12 is further equipped with an element support and guide 25 having the form of a half openwork drum hose reel.
  • This support and guide element is intended to support the hydraulic conduits leading to the hydraulic members supported by the movable part.
  • the bottom of the half drum on which the hydraulic conduits bear is formed by a succession of rotary rollers 26 oriented perpendicular to the direction of travel of the ducts.
  • Movements of the movable portion 12 along the fixed portion 11 are controlled by two linear cylinders V 1 , V 2 housed in the rear uprights 13, 14 of the fixed part.
  • These two cylinders V 1 , V 2 simple type or double effect, comprise a tubular body 27 with cylindrical bore in which is slidably mounted a piston. This piston is itself fixed to the end of a coaxial rod 29 of greater length than that of the body 27.
  • the lower end of the body 27 is integral with the platform while its upper end is provided with guide means, with sealing of the rod.
  • the upper ends of the rods 29 of the two cylinders V 1 , V 2 are fixed to the upper end of the movable part 12, on the yokes used for rotatably mounting the pulleys P 1 , P 2 .
  • a carriage 30 carrying a fastening head and rotational drive 31 of the rods 32 for drilling.
  • This carriage 30 comprises two opposite pads 33, 34 which engage in the recesses of the rear uprights 20, 21 opposite each other to the mobile part 12.
  • sliding means for example bearings, are provided to reduce the friction between the pads and the rear uprights 20, 24.
  • the movements of the carriage 30 are controlled by two cables or pairs of cables C 1 , C 2 passing respectively around the pulleys P 1 , P 2 .
  • One end of each of these two pairs of cables C 1 , C 2 is fixed at a point of a posterior post corresponding 13, 14 of the fixed part 11 while the other end is fixed on the head fastening and driving carried by the carriage.
  • the platform In vertical position of the fastening and rotational driving head 31, the platform comprises a circular through orifice 37 disposed in line with a recess 38 (here rectangular) provided in the support plate.
  • the rotating head of the drill pipe involves a tubular shaft 40 with a stepped cylindrical outer surface.
  • This tubular shaft 40 is rotatably mounted through a frame consisting of two vertical steel plates 41, 42, of substantially rectangular shape, curved in their central part, these two plates 41, 42 being arranged parallel to each other. another with their concavity opposite each other.
  • These two plates 41, 42 are secured to one another by means of two horizontal plates respectively upper 43 and lower 44 which each have in their central region two opposite circular edges of the same radius of curvature as the curved portions of the two plates 41, 42.
  • These two plates 43, 44 comprise in their central part two circular orifices coaxial with each other and at their circular edges. Fixing the two plates 43, 44 on the edge of the two plates 41, 42 is provided by welding.
  • the short sides of the plates 41, 42 are interconnected in opposite pairs by means of two respective vertical rectangular plates 45,46.
  • the dimensions of the plates 41, 42 and the plates 43, 44 are provided so that between the lateral edges of the plates 43, 44 and the plates 45, 46, there are two respective spaces E 1 , E 2 each providing a passage in which are engaged and are fixed, by means of dowels, two attachment devices, namely: in the lower part, two U-shaped pieces 47, 48 each constituting a half-ring and, in the upper part two links 49, 50 articulated by one of their ends around two pins passing through the two plates 41, 42.
  • These two links 49, 50 each comprise, at their other ends, an axial slot in which is pivotally mounted around a pin CH 1 , CH 2 , a triangular shaped plate with rounded peaks 51, 52.
  • each of the plates 51, 52 opposite to the apex through which passes the pin CH 1 , CH 2 , are articulated, thanks to respective clevises s, two ends for fixing the suspension means, for example suspension cables C 1 , C 2 of the rotary drive head 31.
  • Each pair of cables passes around a pulley P 1 , P 2 actuated by a cylinder V 1 , V 2 .
  • the half-rings 47, 48 may advantageously be used for handling loads and, in particular, tubulars or other charges used during drilling operations ("traveling block").
  • a brake disc fixedly mounted on the tubular shaft 50 coaxially with it.
  • This brake disk engages in a jaw 51 equipped with friction linings like a conventional disk brake ( figure 4 ).
  • a tubular shoulder shoulder 52 which constitutes a spacer flange and attachment of a hydraulic motor 53 of conventional design (in the field of public works) but in which the rotor is equipped with a coaxial central passage in which engages and is secured in rotation, for example by means of grooves 54, the tubular shaft.
  • the upper part of the motor as well as the upper end of the tubular shaft are housed in a casing 55 of frustoconical coaxial shape, provided with a radial circular rim provided with holes for the passage of fastening bolts passing through corresponding holes motor 53 and the upper shoulder of the crown 52.
  • the upper face of the casing 55 carries a conical flange connection end 56 connected to the end of the tubular shaft 40 via a rotary joint 57 (via a section of tube 58 secured to the frame).
  • the lower end of the tubular shaft comprises a threaded conical end 59 on which is screwed a tapping complementary shape of a stop valve on which is mounted the rod 32.
  • the axial fastening of the shut-off valve is ensured by a bracket 61 secured to one of the vertical plates 41.
  • connection is further complemented by two radial tubular crosspieces 65, 66 respectively connecting the upper part of the housing 55 to the pads 33, 34.
  • the hoses ensuring the circulation of the hydraulic fluid in the hydraulic motor and in the master cylinder fitted to the brake shoe, pass around the support and guide element equipping the upper end of the movable portion of the mast.

Abstract

The device has a tubular shaft (40) rotated by a hydraulic motor (53) and rotationally mounted via a frame with rectangular shaped vertical steel plates. A rotor of the motor is integrated to the shaft, and a stator of the motor is fixed to a support structure coaxially to the shaft. The steel plates are integrated to each other by upper and lower horizontal plates (43, 44) and rectangular vertical plates (45, 46). Rotational mounting of the shaft is ensured by bearings (87, 88) placed inside the frame and on both sides of a central staging of the shaft.

Description

La présente invention a pour objet un dispositif pour l'entraînement en rotation d'un élément tubulaire mené, apte à recevoir et à véhiculer un fluide sous pression.The present invention relates to a device for driving in rotation a driven tubular element adapted to receive and convey a fluid under pressure.

Elle concerne plus particulièrement, mais non exclusivement, une tête servant à la préhension et à l'entraînement en rotation d'une tige (ou d'un train de tiges) utilisée pour effectuer un forage à l'aide d'une installation de forage dans laquelle ladite tête est suspendue à une superstructure telle que, par exemple, un mât de forage.More particularly, but not exclusively, it relates to a head for gripping and rotating a rod (or drill string) used for drilling using a drilling rig. wherein said head is suspended from a superstructure such as, for example, a drillpole.

Elle s'applique aussi bien à des modes de forage classiques selon lesquels une circulation de boue est réalisée à l'intérieur des tiges, qu'à des modes de forage à circulation inversée faisant intervenir des tubes à double parois délimitant un passage annulaire (ou une série de passages axiaux disposés selon une répartition circulaire) dans lequel un gaz sous pression tel que de l'air ou de l'azote peut être injecté.It applies equally to conventional drilling methods in which sludge circulation is carried out inside the rods, as to reverse-circulation drilling modes involving double-walled tubes defining an annular passage (or a series of axial passages arranged in a circular distribution) in which a pressurized gas such as air or nitrogen can be injected.

D'une façon générale, on sait que les têtes de préhension et d'entraînement actuellement utilisées (« top drive ») font intervenir un corps dans lequel est monté rotatif un arbre tubulaire muni dans sa partie inférieure de moyens d'accouplement dans lesquels peut venir s'accoupler l'extrémité supérieure d'une tige de forage.In general, it is known that the gripping and driving heads currently used ("top drive") involve a body in which is rotatably mounted a tubular shaft provided in its lower part with coupling means in which can come to mate the upper end of a drill pipe.

Cet arbre tubulaire est raccordé par sa partie supérieure à un circuit d'admission de fluide, par exemple de boue, par l'intermédiaire d'un joint tournant.This tubular shaft is connected at its upper part to a fluid intake circuit, for example slurry, via a rotary joint.

L'entraînement en rotation de cet arbre tubulaire est assuré au moyen d'un moteur (habituellement un moteur électrique) axé parallèlement à l'arbre, à une distance D déterminée. La transmission entre moteur et arbre est assurée au moyen d'un pignon monté sur l'arbre rotatif du moteur qui engrène sur un pignon solidaire de l'arbre tubulaire. La distance D est égale à la somme des rayons des pignons.The rotational drive of this tubular shaft is provided by means of a motor (usually an electric motor) oriented parallel to the shaft at a determined distance D. The transmission between the motor and the shaft is provided by means of a pinion mounted on the rotary shaft of the motor which meshes with a pinion integral with the tubular shaft. The distance D is equal to the sum of the spokes of the gables.

L'inconvénient de cette solution consiste en ce qu'en raison du déport entre, d'une part, l'arbre creux et les mécanismes qui lui sont associés et, d'autre part, le moteur, le centre de gravité de la tête se trouve lui-même déporté.The disadvantage of this solution is that because of the offset between, on the one hand, the hollow shaft and the mechanisms associated with it and, on the other hand, the engine, the center of gravity of the head is himself deported.

Il se pose donc un problème d'équilibrage de la tête nécessitant l'usage de contrepoids et/ou de vérins, ainsi qu'un problème résultant des vibrations engendrées par ce déséquilibre mécanique. En outre, en raison de ce déport, en fonctionnement, la tête d'entraînement est soumise à un couple dont le moment est relativement important.There is therefore a problem of balance of the head requiring the use of counterweight and / or cylinders, and a problem resulting from the vibrations generated by this mechanical imbalance. In addition, because of this offset, in operation, the drive head is subjected to a torque whose moment is relatively important.

A ces problèmes, se rajoute celui ayant trait à la relative complexité de la tête, à son poids et donc à son coût.To these problems, there is added that relating to the relative complexity of the head, its weight and therefore its cost.

L'invention a donc plus particulièrement pour but de supprimer ces inconvénients.The object of the invention is therefore more particularly to eliminate these disadvantages.

Elle propose, à cet effet, un dispositif pour l'entraînement en rotation d'un élément tubulaire apte à véhiculer un fluide sous pression provenant d'un circuit d'admission, ce dispositif comprenant un arbre tubulaire monté rotatif dans une structure support et dont une extrémité comprend des moyens de fixation dudit élément tubulaire tandis que l'autre extrémité est connectée par l'intermédiaire d'un joint tournant audit circuit d'admission, cet arbre tubulaire étant entraîné en rotation par un moteur comprenant un stator et un rotor.It proposes, for this purpose, a device for driving in rotation of a tubular element able to convey a pressurized fluid coming from an intake circuit, this device comprising a rotatably mounted tubular shaft. in a support structure and one end of which comprises means for fixing said tubular element while the other end is connected via a rotary joint to said intake circuit, this tubular shaft being rotated by a motor comprising a stator and a rotor.

Selon l'invention, ce dispositif est caractérisé en ce que le susdit rotor présente une forme annulaire et est solidarisé audit arbre tubulaire coaxialement à celui-ci tandis que le stator est fixé à ladite structure sensiblement coaxialement audit arbre.According to the invention, this device is characterized in that the aforesaid rotor has an annular shape and is secured to said tubular shaft coaxially with it while the stator is fixed to said structure substantially coaxially with said shaft.

On obtient ainsi un ensemble rotatif (arbre+rotor), parfaitement équilibré et parfaitement centré par rapport à l'axe de rotation, qui se confond avec l'axe de l'arbre tubulaire. La cinématique de cet ensemble se trouve réduite à sa plus simple expression et ne fait plus intervenir de pignonerie ou similaire. On réduit ainsi considérablement les phénomènes d'usure et les vibrations. Les coûts de fabrication et de maintenance sont également diminués.Thus, a rotational assembly (shaft + rotor), perfectly balanced and perfectly centered with respect to the axis of rotation, which merges with the axis of the tubular shaft. The kinematics of this set is reduced to its simplest expression and no longer involves gear or similar. This considerably reduces wear phenomena and vibrations. Manufacturing and maintenance costs are also reduced.

Avantageusement, l'arbre tubulaire pourra également porter un disque de frein associé à une mâchoire portée par la structure de support.Advantageously, the tubular shaft may also carry a brake disc associated with a jaw carried by the support structure.

Un mode d'exécution de l'invention sera décrit ci-après, à titre d'exemple non limitatif, avec référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue en perspective d'une installation de forage faisant intervenir une tête d'entraînement en rotation selon l'invention ;
  • La figure 2 est une coupe axiale schématique partielle de l'installation illustrée figure 1 ;
  • La figure 3 est une vue en perspective de la tête d'entraînement en rotation utilisée dans l'installation illustrée figures 1 et 2, montée dans son chariot ;
  • La figure 4 est une vue en perspective schématique, avec écorchés partiels de la tête d'entraînement en rotation, représentée figure 3 ;
  • La figure 5 est une vue en perspective de dessous de la tête d'entraînement en rotation illustrée figure 4.
One embodiment of the invention will be described below, by way of non-limiting example, with reference to the accompanying drawings in which:
  • The figure 1 is a perspective view of a drilling installation involving a rotating drive head according to the invention;
  • The figure 2 is a partial schematic axial section of the illustrated installation figure 1 ;
  • The figure 3 is a perspective view of the rotating drive head used in the illustrated installation figures 1 and 2 , mounted in his cart;
  • The figure 4 is a schematic perspective view, with partial cutaway of the rotating drive head, shown figure 3 ;
  • The figure 5 is a perspective view from below of the illustrated rotational drive head figure 4 .

Dans l'exemple représenté sur les figures 1 et 2, l'installation de forage 1 est intégrée à une remorque de semi-remorque 2 dont le plateau constitue la plateforme.In the example shown on the figures 1 and 2 the drilling rig 1 is integrated in a trailer of a semi-trailer 2 whose platform constitutes the platform.

Ce plateau est équipé de piètements escamotables comprenant chacun une plaque d'appui au sol 3, 4 et des colonnes télescopiques 5, 6 actionnées par vérins hydrauliques de manière à constituer une « structure auto élévatrice à terre » sans sous structure. En position escamotée, les vérins sont à l'état rétracté. Dans cette position, les plaques d'appui 3, 4 s'étendent au-dessus du sol et sont éventuellement repliées. La remorque 2 prend donc appui sur ses roues et peut être attelée au tracteur. En position déployée des vérins, les plaques d'appui 3, 4 reposent sur le sol tandis que la remorque 2 se trouve soulevée de la façon indiquée figure 1, les roues 7 se trouvant au-dessus du sol.This plate is equipped with retractable legs each comprising a ground support plate 3, 4 and telescopic columns 5, 6 actuated by hydraulic cylinders so as to constitute a "self-elevating structure on the ground" without substructure. In the retracted position, the cylinders are in the retracted state. In this position, the support plates 3, 4 extend above the ground and are optionally folded. The trailer 2 is supported on its wheels and can be coupled to the tractor. In the deployed position of the cylinders, the support plates 3, 4 rest on the ground while the trailer 2 is raised as indicated figure 1 , the wheels 7 being above the ground.

La partie avant de la plateforme porte les éléments techniques 8 de l'installation 1, notamment tels que la motorisation (groupe moteur), le compresseur, la centrale hydraulique, des groupes de pompage et l'ensemble des systèmes de contrôle, de commande et de régulation.The front part of the platform carries the technical elements 8 of the installation 1, in particular such as the engine (power unit), the compressor, the hydraulic power unit, pumping units and all the control, command and control systems. regulation.

La plage arrière de la plateforme est munie d'un mât vertical 10 réalisé en deux parties 11, 12, à savoir :

  • Une partie fixe 11 de section horizontale en forme de C comprenant quatre montants 13 à 16 (respectivement disposés aux deux extrémités et aux deux régions angulaires du C) ; ces montants 13 à 16 sont reliés par des traverses horizontales 17 dans le plan des côtés latéraux (ailes parallèles du C) et du côté antérieur (âme du C), le côté postérieur de cette partie fixe étant ouvert.
  • Une partie mobile 12 dont la section horizontale est également en forme de C mais de dimensions plus réduites, de manière à pouvoir s'engager à l'intérieur de la partie fixe, et y coulisser. Cette partie mobile présente une structure similaire à celle de la partie fixe et comporte donc quatre montants verticaux 20, 21, 22, 22' reliés par des traverses horizontales 23, 24. Les montants postérieurs 20, 21 de cette partie mobile sont conformés de manière à coulisser le long des montants postérieurs 13, 14 de la partie fixe 11, le guidage s'effectuant par complémentarité de forme entre chaque couple de montants postérieurs 13-21, 14-20.
The rear platform of the platform is provided with a vertical mast 10 made in two parts 11, 12, namely:
  • A fixed portion 11 of C-shaped horizontal section comprising four uprights 13 to 16 (respectively disposed at both ends and at two angular regions of C); these amounts 13 to 16 are connected by horizontal cross members 17 in the plane of the lateral sides (parallel wings of C) and the anterior side (C-core), the posterior side of this fixed part being open.
  • A movable portion 12 whose horizontal section is also C-shaped but of smaller dimensions, so as to be able to engage inside the fixed part, and slide there. This moving part has a structure similar to that of the fixed part and therefore comprises four vertical uprights 20, 21, 22, 22 'connected by horizontal crosspieces 23, 24. The rear uprights 20, 21 of this movable part are shaped so sliding along the rear uprights 13, 14 of the fixed portion 11, the guide being effected by complementary shape between each pair of rear uprights 13-21, 14-20.

Dans cet exemple, les deux montants postérieurs 13, 14 de la partie fixe 11 sont constitués par des éléments tubulaires de section carrée fixés par leurs parties inférieures sur la plateforme par l'intermédiaire de brides de fixation. Les montants antérieurs 15, 16 de la partie fixe 11 sont quant à eux constitués par des éléments tubulaires de section carrée mais de dimensions réduites par rapport à celles des montants postérieurs, Ces montants antérieurs sont également fixés sur la plateforme par l'intermédiaire de brides de fixation.In this example, the two rear uprights 13, 14 of the fixed part 11 are constituted by tubular elements of square section fixed by their lower parts on the platform by means of clamps. The anterior amounts 15, 16 of the fixed portion 11 are in turn constituted by tubular elements of square section but of reduced dimensions compared to those of the posterior amounts. These anterior amounts are also fixed on the platform by means of flanges. of fixation.

Les montants postérieurs 20, 21 de la partie mobile 12 sont constitués par des éléments profilés de section en forme de H dont les ailes parallèles sont situées à une distance légèrement supérieure à la largeur d'un côté des montants postérieurs 13, 14 de la partie fixe 11. L'écartement entre les montants 13, 14 est prévu de manière à ce qu'ils s'engagent dans les cavités des montants 20, 21 orientés vers l'extérieur. Des moyens de coulissement, par exemple des roulements, sont prévus pour réduire les coefficients de frottement entre des couples de montants 13, 14 et 20, 21.The posterior uprights 20, 21 of the movable part 12 consist of profiled H-shaped section members whose parallel wings are located at a distance slightly greater than the width of one side of the rear uprights 13, 14 of the part. fixed 11. The spacing between the uprights 13, 14 is provided so that they engage in the cavities of the uprights 20, 21 facing outwards. Sliding means, for example bearings, are provided for reducing the coefficients of friction between pairs of uprights 13, 14 and 20, 21.

Les montants 20, 21 de la partie mobile portent chacun à leurs extrémités une chape dans laquelle est montée rotative au moins une poulie P1, P2, L'extrémité supérieure de cette partie mobile 12 est, en outre, équipée d'un élément de support et de guidage 25 présentant la forme d'un demi tambour ajouré d'enrouleur pour tuyau souple. Cet élément de support et de guidage est destiné à supporter les conduits hydrauliques menant aux organes hydrauliques supportés par la partie mobile. Le fond du demi tambour sur lequel les conduits hydrauliques prennent appui est constitué par une succession de galets rotatifs 26 axés perpendiculairement au sens de défilement des conduits.The uprights 20, 21 of the movable part each carry at their ends a yoke in which is rotatably mounted at least one pulley P 1 , P 2 , the upper end of this movable part 12 is further equipped with an element support and guide 25 having the form of a half openwork drum hose reel. This support and guide element is intended to support the hydraulic conduits leading to the hydraulic members supported by the movable part. The bottom of the half drum on which the hydraulic conduits bear is formed by a succession of rotary rollers 26 oriented perpendicular to the direction of travel of the ducts.

Les déplacements de la partie mobile 12 le long de la partie fixe 11 sont commandés par deux vérins linéaires V1, V2 logés dans les montants postérieurs 13, 14 de la partie fixe.Movements of the movable portion 12 along the fixed portion 11 are controlled by two linear cylinders V 1 , V 2 housed in the rear uprights 13, 14 of the fixed part.

Ces deux vérins V1, V2, de type simple voire double effet, comprennent un corps tubulaire 27 à alésage cylindrique dans lequel est monté coulissant un piston. Ce piston est lui-même fixé à l'extrémité d'une tige coaxiale 29 de longueur supérieure à celle du corps 27.These two cylinders V 1 , V 2 , simple type or double effect, comprise a tubular body 27 with cylindrical bore in which is slidably mounted a piston. This piston is itself fixed to the end of a coaxial rod 29 of greater length than that of the body 27.

L'extrémité inférieure du corps 27 est solidaire de la plateforme tandis que son extrémité supérieure est munie de moyens de guidage, avec étanchéité de la tige.The lower end of the body 27 is integral with the platform while its upper end is provided with guide means, with sealing of the rod.

Les extrémités supérieures des tiges 29 des deux vérins V1, V2 sont fixées à l'extrémité supérieure de la partie mobile 12, sur les chapes servant au montage rotatif des poulies P1, P2.The upper ends of the rods 29 of the two cylinders V 1 , V 2 are fixed to the upper end of the movable part 12, on the yokes used for rotatably mounting the pulleys P 1 , P 2 .

Dans la partie mobile 12, est monté coulissant un chariot 30 portant une tête de fixation et d'entraînement en rotation 31 des tiges 32 servant au forage.In the movable portion 12, is slidably mounted a carriage 30 carrying a fastening head and rotational drive 31 of the rods 32 for drilling.

Ce chariot 30 comprend deux patins opposés 33, 34 qui s'engagent dans les cavités des montants postérieurs 20, 21 mutuellement en regard de la partie mobile 12. Ici également, des moyens de coulissement, par exemple des roulements, sont prévus pour réduire les frottements entre les patins et les montants postérieurs 20, 24.This carriage 30 comprises two opposite pads 33, 34 which engage in the recesses of the rear uprights 20, 21 opposite each other to the mobile part 12. Here, too, sliding means, for example bearings, are provided to reduce the friction between the pads and the rear uprights 20, 24.

Les déplacements du chariot 30 sont commandés par deux câbles ou paires de câbles C1, C2 passant respectivement autour des poulies P1, P2. L'une des extrémités de chacune de ces deux paires de câbles C1, C2 vient se fixer en un point d'un montant postérieur correspondant 13, 14 de la partie fixe 11 tandis que l'autre extrémité vient se fixer sur la tête de fixation et d'entraînement portée par le chariot.The movements of the carriage 30 are controlled by two cables or pairs of cables C 1 , C 2 passing respectively around the pulleys P 1 , P 2 . One end of each of these two pairs of cables C 1 , C 2 is fixed at a point of a posterior post corresponding 13, 14 of the fixed part 11 while the other end is fixed on the head fastening and driving carried by the carriage.

A la verticale de la tête de fixation et d'entraînement en rotation 31, la plateforme comprend un orifice traversant circulaire 37 disposé au droit d'un évidement 38 (ici rectangulaire) prévu dans la plaque d'appui.In vertical position of the fastening and rotational driving head 31, the platform comprises a circular through orifice 37 disposed in line with a recess 38 (here rectangular) provided in the support plate.

Telle que représentée sur les figures 3 et 4, la tête d'entraînement en rotation de la tige de forage fait intervenir un arbre tubulaire 40 à surface extérieure cylindrique étagée.As represented on the figures 3 and 4 , the rotating head of the drill pipe involves a tubular shaft 40 with a stepped cylindrical outer surface.

Cet arbre tubulaire 40 est monté rotatif au travers d'un châssis constitué par deux plaques d'acier verticales 41, 42, de forme sensiblement rectangulaire, incurvées dans leur partie centrale, ces deux plaques 41, 42 étant disposées parallèlement l'une à l'autre avec leur concavité en vis-à-vis l'une de l'autre. Ces deux plaques 41, 42 sont solidarisées l'une à l'autre au moyen de deux platines horizontales respectivement supérieure 43 et inférieure 44 qui présentent chacune dans leur région centrale deux bords opposés circulaires de même rayon de courbure que les parties incurvées des deux plaques 41, 42. Ces deux platines 43, 44 comprennent dans leur partie centrale deux orifices circulaires coaxiaux entre eux et à leurs bords circulaires. La fixation des deux platines 43, 44 sur le chant des deux plaques 41, 42 est assurée par soudage. Par ailleurs, les petits côtés des plaques 41, 42 sont reliés entre eux, par paires opposées, au moyen de deux plaquettes rectangulaires verticales respectives 45,46.This tubular shaft 40 is rotatably mounted through a frame consisting of two vertical steel plates 41, 42, of substantially rectangular shape, curved in their central part, these two plates 41, 42 being arranged parallel to each other. another with their concavity opposite each other. These two plates 41, 42 are secured to one another by means of two horizontal plates respectively upper 43 and lower 44 which each have in their central region two opposite circular edges of the same radius of curvature as the curved portions of the two plates 41, 42. These two plates 43, 44 comprise in their central part two circular orifices coaxial with each other and at their circular edges. Fixing the two plates 43, 44 on the edge of the two plates 41, 42 is provided by welding. On the other hand, the short sides of the plates 41, 42 are interconnected in opposite pairs by means of two respective vertical rectangular plates 45,46.

Les dimensions des plaques 41, 42 et des platines 43, 44 sont prévues de manière à ce qu'il existe, entre les bords latéraux des platines 43, 44 et les plaques 45, 46, deux espaces respectifs E1, E2 ménageant chacun un passage dans lequel s'engagent et sont fixés, grâce à des chevilles, deux dispositifs d'accrochage, à savoir : dans la partie inférieure, deux pièces en forme de U 47, 48 constituant chacune un demi anneau et, dans la partie supérieure, deux biellettes 49, 50 articulées par l'une de leurs extrémités autour de deux chevilles passant au travers des deux plaques 41, 42. Ces deux biellettes 49, 50 comprennent chacune, à leurs autres extrémités, une fente axiale dans laquelle est montée pivotante, autour d'une cheville CH1, CH2, une platine de forme triangulaire à sommets arrondis 51, 52. Sur le côté de chacune des platines 51, 52, opposée au sommet au travers duquel passe la cheville CH1, CH2, sont articulés, grâce à des chapes respectives, deux embouts de fixation des moyens de suspension, par exemple des câbles de suspension C1, C2 de la tête d'entraînement en rotation 31. Chaque paire de câbles passe autour d'une poulie P1, P2 actionnée par un vérin V1, V2.The dimensions of the plates 41, 42 and the plates 43, 44 are provided so that between the lateral edges of the plates 43, 44 and the plates 45, 46, there are two respective spaces E 1 , E 2 each providing a passage in which are engaged and are fixed, by means of dowels, two attachment devices, namely: in the lower part, two U-shaped pieces 47, 48 each constituting a half-ring and, in the upper part two links 49, 50 articulated by one of their ends around two pins passing through the two plates 41, 42. These two links 49, 50 each comprise, at their other ends, an axial slot in which is pivotally mounted around a pin CH 1 , CH 2 , a triangular shaped plate with rounded peaks 51, 52. On the side of each of the plates 51, 52, opposite to the apex through which passes the pin CH 1 , CH 2 , are articulated, thanks to respective clevises s, two ends for fixing the suspension means, for example suspension cables C 1 , C 2 of the rotary drive head 31. Each pair of cables passes around a pulley P 1 , P 2 actuated by a cylinder V 1 , V 2 .

Les demi anneaux 47, 48 peuvent être avantageusement utilisés pour effectuer la manutention de charges et, en particulier, des tubulaires ou autres charges utilisées lors des opérations de forage (« travelling block »).The half-rings 47, 48 may advantageously be used for handling loads and, in particular, tubulars or other charges used during drilling operations ("traveling block").

Dans cet exemple, le montage rotatif de l'arbre tubulaire 40, dans le volume délimité entre les deux plaques 41, 42 et les platines 43, 44, est assuré au moyen de deux paliers 87, 88 à roulement à billes respectivement disposés à l'intérieur du châssis de part et d'autre d'un étagement central 49 de l'arbre tubulaire 40.In this example, the rotational mounting of the tubular shaft 40, in the volume delimited between the two plates 41, 42 and the plates 43, 44, is ensured by means of two bearings bearing ball bearings respectively inside the frame on either side of a central stagger 49 of the tubular shaft 40.

Au-dessous de la platine 44 est disposé un disque de frein monté fixement sur l'arbre tubulaire 50 coaxialement à celui-ci. Ce disque de frein s'engage dans une mâchoire 51 équipée de garnitures de friction à l'instar d'un frein à disque classique (figure 4).Below the plate 44 is disposed a brake disc fixedly mounted on the tubular shaft 50 coaxially with it. This brake disk engages in a jaw 51 equipped with friction linings like a conventional disk brake ( figure 4 ).

Sur la platine 43 vient se fixer une couronne tubulaire épaulée 52 qui constitue une bride d'espacement et de fixation d'un moteur hydraulique 53 de conception classique (dans le domaine des travaux publics) mais dans lequel le rotor est, muni d'un passage central coaxial dans lequel s'engage et vient se solidariser en rotation, par exemple grâce à des cannelures 54, l'arbre tubulaire.On the plate 43 is fixed a tubular shoulder shoulder 52 which constitutes a spacer flange and attachment of a hydraulic motor 53 of conventional design (in the field of public works) but in which the rotor is equipped with a coaxial central passage in which engages and is secured in rotation, for example by means of grooves 54, the tubular shaft.

La partie supérieure du moteur ainsi que l'extrémité supérieure de l'arbre tubulaire sont logées dans un carter 55 de forme tronconique coaxial, muni d'un rebord circulaire radial muni de perçages destinés au passage de boulons de fixation passant au travers de perçages correspondant du moteur 53 et de l'épaulement supérieur de la couronne 52.The upper part of the motor as well as the upper end of the tubular shaft are housed in a casing 55 of frustoconical coaxial shape, provided with a radial circular rim provided with holes for the passage of fastening bolts passing through corresponding holes motor 53 and the upper shoulder of the crown 52.

La face supérieure du carter 55 porte un embout de connexion conique à bride 56 raccordé à l'extrémité de l'arbre tubulaire 40 par l'intermédiaire d'un joint tournant 57 (via un tronçon de tube 58 solidaire du châssis).The upper face of the casing 55 carries a conical flange connection end 56 connected to the end of the tubular shaft 40 via a rotary joint 57 (via a section of tube 58 secured to the frame).

L'extrémité inférieure de l'arbre tubulaire comprend un embout conique fileté 59 sur lequel vient se visser un taraudage de forme complémentaire d'une vanne d'arrêt sur laquelle vient se monter la tige 32.The lower end of the tubular shaft comprises a threaded conical end 59 on which is screwed a tapping complementary shape of a stop valve on which is mounted the rod 32.

La solidarisation axiale de la vanne d'arrêt est assurée par une potence 61 solidaire de l'une des plaques verticales 41.The axial fastening of the shut-off valve is ensured by a bracket 61 secured to one of the vertical plates 41.

Sur les plaques 45, 46 sont respectivement fixés les deux patins 33, 34 destinés à venir s'engager dans les cavités intérieures des montants de la partie mobile du mât.On the plates 45, 46 are respectively fixed the two pads 33, 34 intended to engage in the inner cavities of the amounts of the movable part of the mast.

Ces deux patins 33, 34 sont par ailleurs solidarisés au carter grâce à deux ailes radiales 63, 64 qui prolongent le rebord inférieur circulaire R du carter 55 en deux emplacements diamétralement opposés.These two pads 33, 34 are also secured to the housing by means of two radial wings 63, 64 which extend the lower circular rim R of the housing 55 in two diametrically opposite locations.

Cette solidarisation est, en outre, complétée par deux traverses tubulaires radiales 65, 66 reliant respectivement la partie supérieure du carter 55 aux patins 33, 34.This connection is further complemented by two radial tubular crosspieces 65, 66 respectively connecting the upper part of the housing 55 to the pads 33, 34.

Bien entendu, les tuyaux souples, assurant la circulation du fluide hydraulique dans le moteur hydraulique ainsi que dans le maître cylindre équipant la mâchoire de frein, passent autour de l'élément de support et de guidage équipant l'extrémité supérieure de la partie mobile du mât.Of course, the hoses, ensuring the circulation of the hydraulic fluid in the hydraulic motor and in the master cylinder fitted to the brake shoe, pass around the support and guide element equipping the upper end of the movable portion of the mast.

Un avantage supplémentaire de la solution précédemment décrite, consiste en ce que le moteur est disposé au-dessus des paliers 87, 88 qui supportent la charge.An additional advantage of the previously described solution is that the motor is disposed above the bearings 87, 88 which support the load.

Ainsi, compte tenu du fait que le moteur hydraulique est auto lubrifié, on évite d'avoir à utiliser un circuit supplémentaire de lubrification.Thus, considering that the hydraulic motor is self-lubricated, it avoids having to use an additional lubrication circuit.

Claims (10)

Dispositif pour l'entraînement en rotation d'un élément tubulaire (32) apte à véhiculer un fluide sous pression provenant d'un circuit d'admission, ce dispositif comprenant un arbre tubulaire (40) monté rotatif dans une structure support et dont une extrémité comprend des moyens de fixation dudit élément tubulaire (32) tandis que l'autre extrémité est connectée par l'intermédiaire d'un joint tournant (57) audit circuit d'admission, cet arbre tubulaire (40) étant entraîné en rotation par un moteur (53) comprenant un stator et un rotor, le susdit rotor présentant une forme annulaire et étant solidarisé audit arbre tubulaire (40) coaxialement à celui-ci tandis que le stator est fixé à ladite structure sensiblement coaxialement audit arbre.
caractérisé en ce que l'arbre tubulaire est monté rotatif au travers d'un châssis comportant deux plaques verticales (41, 42) de forme sensiblement rectangulaire, incurvées dans leur partie centrale, solidarisées l'une à l'autre au moyen de deux plaques horizontales présentant dans leur partie centrale deux orifices circulaires coaxiaux et au moyen de deux plaquettes rectangulaires verticales reliant les extrémités des plaques (41, 42), le montage rotatif de l'arbre tubulaire (40) étant assuré au moyen de deux paliers (87, 88) respectivement disposés à l'intérieur du châssis, de part et d'autre d'un étagement central dudit arbre (40).Device for rotating a tubular element (32) capable of conveying a pressurized fluid coming from an intake circuit, this device comprising a tubular shaft (40) rotatably mounted in a support structure and one end of which comprises means for fixing said tubular element (32) while the other end is connected via a rotary joint (57) to said intake circuit, said tubular shaft (40) being rotated by an engine (53) comprising a stator and a rotor, the aforesaid rotor having an annular shape and being secured to said tubular shaft (40) coaxially with it while the stator is fixed to said structure substantially coaxially with said shaft.
characterized in that the tubular shaft is rotatably mounted through a frame comprising two vertical plates (41, 42) of substantially rectangular shape, curved in their central part, secured to one another by means of two plates horizontal having in their central part two coaxial circular orifices and by means of two vertical rectangular plates connecting the ends of the plates (41, 42), the rotational mounting of the tubular shaft (40) being ensured by means of two bearings (87, 88) respectively disposed within the frame, on either side of a central step of said shaft (40). Dispositif selon la revendication 1,
caractérisé en ce que le susdit moteur est un moteur hydraulique.Device according to claim 1,
characterized in that the aforesaid motor is a hydraulic motor. Dispositif selon la revendication 1,
caractérisé en ce que l'arbre tubulaire (40) porte un disque de frein associé à Une mâchoire portée par la structure de support.Device according to claim 1,
characterized in that the tubular shaft (40) carries a brake disc associated with a jaw carried by the support structure. Dispositif selon la revendication 1,
caractérisé en ce que les dimensions des plaques (41, 42) et des platines (43, 44) sont prévues de manière à ce qu'il existe, entre les bords latéraux des platines (43, 44) et les plaques (45, 46), deux espaces respectifs (E1, E2) ménageant chacun un passage dans lequel s'engagent et sont fixés, grâce à des chevilles, deux dispositifs d'accrochage, à savoir : dans la partie inférieure, une pièce en forme de U (47, 48) constituant un demi anneau et, dans la partie supérieure, une biellette (49, 50) articulée par l'une des extrémités autour d'une cheville passant au travers des deux plaques (41, 42) et comprenant, à son autre extrémité, une fente axiale dans laquelle est montée pivotante, autour d'une cheville (CH1, CH2), une platine de forme triangulaire (51 52).Device according to claim 1,
characterized in that the dimensions of the plates (41, 42) and the plates (43, 44) are provided in such a way that between the side edges of the plates (43, 44) and the plates (45, 46) ), two respective spaces (E 1 , E 2 ) each providing a passage in which are engaged and are fixed, by means of dowels, two attachment devices, namely: in the lower part, a U-shaped part (47, 48) constituting a half-ring and, in the upper part, a rod (49, 50) articulated by one of the ends around an ankle passing through the two plates (41, 42) and comprising, its other end, an axial slot in which is pivotally mounted around a pin (CH 1 , CH 2 ), a triangular plate (51 52). Dispositif selon la revendication 4,
caractérisé en ce que, sur le côté de chacune des platines (51, 52), opposée au sommet au travers duquel passe la cheville (CH1, CH2), sont articulés, grâce à des chapes respectives, deux embouts de fixation des câbles de suspension (C1, C2) de la tête d'entraînement en rotation (31).Device according to claim 4,
characterized in that , on the side of each of the plates (51, 52), opposite to the apex through which the pin passes (CH 1 , CH 2 ), are articulated, thanks to respective clevises, two cable fixing ends suspension (C 1 , C 2 ) of the rotary drive head (31). Dispositif selon l'une des revendications précédentes,
caractérisé en ce qu'il comprend des moyens permettant son montage coulissant sur des moyens de guidage équipant un mât de forage, et en ce que le susdit élément tubulaire consiste en une tige de forage.Device according to one of the preceding claims,
characterized in that it comprises means allowing its sliding mounting on guide means equipping a drilling mast, and in that the aforesaid tubular element consists of a drill pipe. Dispositif selon l'une des revendications précédentes,
caractérisé en ce que les susdits moyens assurant son montage coulissant sur des moyens de guidage équipant un mât de forage consistent en deux patins (33, 34) fixés sur les susdites plaques (45, 46) et destinées à venir s'engager dans des cavités prévues dans des montants verticaux du mât.Device according to one of the preceding claims,
characterized in that the aforesaid means ensuring its sliding mounting on guide means equipping a drilling mast consist of two pads (33, 34) fixed on said plates (45, 46) and intended to engage in cavities provided in vertical posts of the mast. Dispositif selon la revendication 7,
caractérisé en ce que le susdit mât comprend une partie fixe le long de laquelle coulisse une partie mobile, et en ce que les susdits montants verticaux appartiennent à ladite partie mobile.Device according to claim 7,
characterized in that the aforesaid mast comprises a fixed part along which slides a movable part, and in that the said vertical uprights belong to said movable part. Dispositif selon l'une des revendications précédentes,
caractérisé en ce que l'extrémité supérieure du moteur ainsi que l'extrémité supérieure de l'arbre tubulaire sont logées dans un carter (55) de forme sensiblement tronconique logeant le susdit joint tournant.Device according to one of the preceding claims,
characterized in that the upper end of the motor and the upper end of the tubular shaft are housed in a housing (55) of substantially frustoconical shape housing the aforesaid rotary joint. Dispositif selon l'une des revendications précédentes,
caractérisé en ce que l'extrémité inférieure de l'arbre tubulaire (40) comprend un embout fileté conique (59) sur lequel vient se visser un taraudage de forme complémentaire d'une vanne d'arrêt connectée à la tige (32).Device according to one of the preceding claims,
characterized in that the lower end of the tubular shaft (40) comprises a conical threaded end (59) on which is screwed a tapping complementary shape of a stop valve connected to the rod (32).
EP08290420A 2007-05-09 2008-05-05 Device for driving the rotation of a driven tubular element, capable of receiving and carrying a fluid under pressure Withdrawn EP1990502A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0703318A FR2916013B1 (en) 2007-05-09 2007-05-09 DEVICE FOR THE ROTATIONAL DRIVE OF A TUBULAR ELEMENT PROVIDED FOR RECEIVING AND VEHICULATING A PRESSURIZED FLUID

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EP1990502A2 true EP1990502A2 (en) 2008-11-12
EP1990502A3 EP1990502A3 (en) 2010-09-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101509358B (en) * 2009-03-30 2012-05-23 新疆石油管理局井下作业公司 Tube fitting pressing device
CN109347290A (en) * 2018-10-30 2019-02-15 湖北环电磁装备工程技术有限公司 A kind of oil-well rig turntable that combination type permanent-magnet synchronous motor directly drives
US10995563B2 (en) 2017-01-18 2021-05-04 Minex Crc Ltd Rotary drill head for coiled tubing drilling apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670832A (en) * 1970-08-19 1972-06-20 Atlantic Richfield Co Slim hole drilling method
GB2344121A (en) * 1998-11-25 2000-05-31 Mactaggart Scott Top drive having drive shaft concentric with the rotor
US20070039758A1 (en) * 2005-08-22 2007-02-22 Klipstein Michael R Remotely operable top drive system safety valve having dual valve elements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670832A (en) * 1970-08-19 1972-06-20 Atlantic Richfield Co Slim hole drilling method
GB2344121A (en) * 1998-11-25 2000-05-31 Mactaggart Scott Top drive having drive shaft concentric with the rotor
US20070039758A1 (en) * 2005-08-22 2007-02-22 Klipstein Michael R Remotely operable top drive system safety valve having dual valve elements

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101509358B (en) * 2009-03-30 2012-05-23 新疆石油管理局井下作业公司 Tube fitting pressing device
US10995563B2 (en) 2017-01-18 2021-05-04 Minex Crc Ltd Rotary drill head for coiled tubing drilling apparatus
US11136837B2 (en) 2017-01-18 2021-10-05 Minex Crc Ltd Mobile coiled tubing drilling apparatus
CN109347290A (en) * 2018-10-30 2019-02-15 湖北环电磁装备工程技术有限公司 A kind of oil-well rig turntable that combination type permanent-magnet synchronous motor directly drives

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Publication number Publication date
EP1990502A3 (en) 2010-09-22
FR2916013B1 (en) 2009-11-20
FR2916013A1 (en) 2008-11-14

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