EP0400037B1 - Mandrel a fente en t et outil de renversement - Google Patents

Mandrel a fente en t et outil de renversement Download PDF

Info

Publication number
EP0400037B1
EP0400037B1 EP89902155A EP89902155A EP0400037B1 EP 0400037 B1 EP0400037 B1 EP 0400037B1 EP 89902155 A EP89902155 A EP 89902155A EP 89902155 A EP89902155 A EP 89902155A EP 0400037 B1 EP0400037 B1 EP 0400037B1
Authority
EP
European Patent Office
Prior art keywords
arm
mandrel
assembly according
well assembly
bore
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.)
Expired - Lifetime
Application number
EP89902155A
Other languages
German (de)
English (en)
Other versions
EP0400037A1 (fr
Inventor
William B. Crawford
Perry J. De Cuir, Sr.
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0400037A1 publication Critical patent/EP0400037A1/fr
Application granted granted Critical
Publication of EP0400037B1 publication Critical patent/EP0400037B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/03—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting the tools into, or removing the tools from, laterally offset landing nipples or pockets

Definitions

  • the present invention relates generally to side pocket mandrel and kickover tool apparatus for placing and removing flow control devices in wells, and particularly to a new and improved side pocket mandrel having a unique channel and orienting sleeve combination for positively orienting and actuating a kickover tool being moved through the mandrel.
  • the present invention also provides a new and improved kickover tool having an arm assembly that is oriented and pivoted outwardly due to cooperative engagement with a channel and sleeve in the mandrel.
  • a series of mandrels are spaced vertically in the production string of tubing that extends down into the well, and each mandrel has an offset pocket that is arranged to receive a gas lift valve that can be placed therein, and removed therefrom , through use of a wireline kickover tool.
  • the kickover tool generally has an articulated arm assembly that is pivotally attached to an elongated tray, and an orienting and trigger mechanism that cooperates with a slot and shoulder in a "mule-shoe" orienting sleeve to rotationally orient the arm assembly with respect to the side pocket, and to release the arm assembly to pivot outward so that a flow control device coupled thereto can be inserted into the pocket. Once the flow control is latched in place, the arm assembly is released therefrom to permit the kickover tool to be removed from the well.
  • Various United States Patents which illustrate typical prior devices are 2,824,525, 3,268,006, 3,741,299, 3,802,503, 4,106,563 and 4,106,564. More recent improvements in the art are disclosed in WO-A-86/03344.
  • An object of the present invention is to provide a new and improved side pocket mandrel having an orienting sleeve and channel construction that provides improved reliability of kickover tool operation and performance.
  • Another object of the present invention is to provide a new and improved kickover tool having a unique arm assembly that co-acts with an orienting sleeve and channel in a side pocket mandrel to assure positive and reliable setting and retrieval of a flow control device.
  • a well assembly comprising: a side pocket mandrel, having an elongated, generally tubular mandrel body having means at its opposite ends for connecting said mandrel in a pipe string, said mandrel body having a main bore and a receptacle laterally offset to the side of said main bore for receiving a flow control device; and orienting sleeve fixed in said mandrel body and having guide surfaces leading to a longitudinal slot; a kickover tool apparatus having an elongated, generally tubular tool body having a recess opening outwardly along one side thereof; a first arm having one end pivotally attached to said tool body adjacent one end of said recess, the other end of said arm being arranged to move between an inner position and outer position with respect to said tool body; characterised in that longitudinally extending channel means are provided adjacent said slot for engagement with projecting means on said arm for causing the arm of the kickover tool positively to be held in an outwardly extended position as the kickover tool is
  • a side pocket mandrel has an open bore aligned with the bore of the tubing, and an elongated internal recess, or pocket, laterally offset from such open bore.
  • a seal or polish bore at the upper end of the pocket extends through the wall of the mandrel and is arranged to receive the packing of a valve body that is inserted through the bore by operation of a kickover tool.
  • An orienting sleeve having helical lower guide surfaces that lead to a vertical slot in the sleeve wall is fixed in a lower end section of the mandrel, and a longitudinal recess or channel is formed that is wider than the slot to provide an essentially "T-shaped" vertically extending recess.
  • the kickover tool has an upwardly extending, outwardly biased arm assembly that is pivotally mounted on an elongated tray.
  • the arm assembly includes a lower arm having a locator finger on its upper end, and oppositely directed projections located immediately below the finger.
  • the lower arm is biased outward, so that as the tool is moved upward through the mandrel, the finger engages one or the other of the helical surfaces on the orienting sleeve to cause the arm to be rotationally oriented to a predetermined position.
  • the projections then enter the channel which extends outside of the sleeve slot so that the arm is positively held in an outer position during further upward movement.
  • the nose of a flow control device coupled thereto is very precisely aligned with the seal bore at the upper end of the pocket, and is inserted therethrough as the tool is moved upward in the mandrel.
  • jarring forces can be applied to disconnect from the latch on the flow control, and to release a wedge-type lock.
  • the kickover tool is moved downward in the mandrel, the arm is forced inward and locked in an inner position by such wedge. Then the kickover tool can be retrieved from the tubing.
  • a secondary lock actuating mechanism also is provided to allow the arm assembly to be locked in its pivotally retracted position during such removal.
  • the present invention eliminates the various power springs, cores, trigger assemblies and the like which typically have been used in prior devices of this type. The result is an overall substantial simplification in kickover tool design, with greatly increased reliability.
  • a side pocket mandrel 10 in accordance with the present invention includes an elongated body section 11 that is generally tubular, and which defines a main bore 12 and a side pocket region 13 that is offset laterally to the side of such main bore.
  • a short-length valve seating sub 14 is welded at 15 to the upper end of the body 11, and has a polish bore receptacle 16 that opens to the outside of the mandrel 10 through an outer inclined surface 17 thereof.
  • An enlarged diameter section 18 at the lower end of the bore 16 provides a latch recess, and an inwardly directed, arcuate shoulder 20 is arranged to cooperate with a latch mechanism to hold a flow control device (not shown) that extends through the bore 16.
  • the packing on the flow control device engages the walls of the bore 16, to prevent fluid leakage.
  • the axis 22 of the bore 16 can be inclined downward and inward toward the axis 23 of the bore 12 at a small angle, for example 1-3°.
  • a tubular nipple 24 has its lower end welded at 25 to the upper end of the seating sub 14, and is provided with internal threads 26 at its upper end for connection to the tubing. If desired, an outwardly directed lug 27 can be provided to protect the nose of the flow control device from damage due to impact during pipe handling.
  • a swage nipple 30 is welded at 31 to the lower end of the main body section 11.
  • the nipple 30 has internal threads 32 at its lower end for connection to the tubing string.
  • An orienting sleeve 33 is fixed in a suitable manner inside the bore 34 of the lower portion 35 of the swage nipple 30, and has a pair of helical lower surfaces 36 that lead upward to an open-ended slot 37 in the sleeve 33.
  • the slot 37 is rotationally oriented so as to overlay an elongated, vertically disposed recess 38 that is formed in the wall of the lower portion 35.
  • the recess 38 has a generally semi-circular cross-section to provide a concave outer wall surface 40, and the width of the inner portion of the recess is substantially greater than the width of the sleeve slot 37.
  • the arrangement of parts provides a generally T-shaped, elongated channel whose walls are defined by the outer wall surface 40, the outer surfaces 41, 42 of the sleeve 33 to the sides of the slot 37, and the opposed wall surfaces 43, 44 of the slot 37.
  • the upper end of the channel 38 opens into the side pocket region 13 above the inclined upper end surface 45 of the sleeve 33, and the lower end portion 47 of the channel extend a distance d below the lower end of the slot 37.
  • the lower end surface of the channel 38 can be inclined downward and inward toward the axis of the lower portion 35 of the swage nipple 30.
  • FIG. 3A Another structural arrangement forming a T-shaped channel is shown in Figure 3A.
  • the orienting sleeve 133 fits in an eccentrically arranged counterbore 110 in the swage nipple 130, the centerline of the cylindrical inner wall surface 111 of the sleeve being aligned with the axis 23 of the mandrel bore 12.
  • the longitudinal slot 137 in sleeve 133 is widened to the outside as shown to provide a pair of transverse wall surfaces 141, 142 and a second pair of side wall surfaces 112 that extend parallel to the side walls 144 of the slot 137.
  • These wall surfaces, together with the adjacent inner wall surface 140 of the swage nipple 130 provide a T-shaped channel similar to that shown in Figure 3, except that there are no acute corners in which a wireline might become lodged.
  • a kickover tool 50 in accordance with the present invention is shown in Figures 4A, 4B and 4C.
  • the tool 50 includes an elongated body or tray 51 having a threaded connector sub 52 for a wireline socket at its upper end.
  • the sub 52 can be threaded at 53 to the upper end of the tray body 54.
  • the body 54 is provided with an elongated recess 55 that receives a flow control device 56 as shown in phantom lines, which can be a gas lift valve, a dummy, or the like.
  • a kickover arm assembly indicated generally at 57 in Figure 4B is attached by a transverse pivot pin 58 near the lower end of the recess 55.
  • the arm assembly 57 includes a lower arm 60 having an upper arm 61 pivotally attached thereto by a pin 62.
  • the lower arm 60 has an elongated slot 63 through which the mounting pin 58 extends to enable a degree of upward movement of the the tray 51 relative to the lower arm.
  • the lower portion of the arm 60 has an inclined rear surface 64, and a lower end surface 65 that is rounded on a large radius.
  • the upper portion 66 of the arm 60 has a reduced wall thickness and terminates in a rounded end portion or finger 67. The upper outer edge of the portion 66 is inclined upward and inward as shown.
  • Suitable means such as a leaf spring 74 is secured to the arm 60 above the pin 58 in a manner such that the free end of the leaf spring slidably engages a back wall surface of the recess 55.
  • the leaf spring 74 urges the arm 60 to pivot in a clockwise direction about the pin 58, as viewed in Figure 4B.
  • a pair of oppositely projecting ears 70, 71 are formed on the upper portion 66, with each ear having oppositely inclined upper and lower end surfaces 72, 73.
  • a transverse section through the end portion 66 and the ears 70, 71 has a T-shaped configuration as shown in Figure 9.
  • the width of the leg of the "T” is slightly less than the width of the slot 37 in the orienting sleeve 33, and the height and transverse dimensions of the top of the "T" is sized such that it will fit with somewhat loose tolerance within the channel 38 in the swage nipple 30.
  • the upper arm 61 of the assembly 57 has a pair of legs 75 that are spaced apart so as to receive the upper portion 66 of the lower arm 60 therebetween.
  • An outer surface 76 of each leg 75 is formed to have substantially the same radius as the inner wall surface of the orienting sleeve 33.
  • Aligned apertures 77 in the legs 75 receive the respective ends of the pivot pin 62.
  • a ledge 68 on the upper arm 61 has a shallow depression 69 that receives the inner end of a compressed coil spring 80 that reacts against an inwardly facing surface 81 on the upper end portion 67 of the lower arm 60.
  • the spring 80 Since the spring 80 is located above the pivot pin 62 the spring functions to urge the upper end of the arm 61, and thus the upper end of the flow control device 56, to pivot toward the tray 51.
  • the upper section 82 of the arm 61 is provided with an internally threaded socket 83 to which a typical running or retrieving head (not shown in detail) is attached. Of course the head is coupled to a latch mechanism that is attached to the lower end of the flow control device 56.
  • a mechanism indicated generally at 85 in Figure 4B is secured to the lower end of the tray 51.
  • the mechanism 85 includes a tubular housing 86 having its upper end threaded to the tray 51 at 87, and its lower end closed by a bottom plug 88 ( Figure 4C).
  • a wedge 89 having an upward and inwardly inclined surface 90 is mounted on the upper end of a rod 91 that is slidably received in a central opening 92 in the upper section 93 of the housing 86.
  • the lower end of the rod 91 is threaded to a plunger 94 that is biased upward by a coil spring 95 which reacts between a downwardly facing shoulder 96 on the plunger 94 and an upwardly facing shoulder 97 on the bottom plug 88.
  • the wedge 89 is releasably coupled to a block 98 on the lower end portion of the tray 51 by a shear pin 100.
  • the upper surfaces of the block 98 are concave as shown, and slidably engage the companion curved lower surface of the arm 60.
  • the wedge 89 fits within a longitudinal slot 101 in the block 98.
  • a tubular sleeve 99 can be arranged on the lower portion of the tray 51 to provide a guide for the block 98.
  • the lower end surface of the block 98 normally is spaced upward with respect to the upper surface of the housing 86 by a distance that is less than the major length of the pin slot 63 in the lower arm 60.
  • a release rod 102 (Figure 4C) extends through a central opening 103 in the bottom plug 88 in a manner such that the lower end portion 104 thereof projects below the lower end of the plug.
  • Another shear pin 105 is used to releasably attach the release rod 102 to the bottom plug 88.
  • the upper section 106 of the rod 102 has an enlarged diameter to limit downward movement with respect to the plug 88.
  • a number of the side pocket mandrels 10 are connected in the well production tubing at selected, vertically spaced locations.
  • a flow control device 56 such as a gas lift valve
  • the kickover tool 50 is assembled as shown in the drawings, and the valve and latch are attached by a running head to the upper end 82 of the arm 61.
  • the kickover tool 50 then is attached by sinker bars and a set of jars to the end of the wireline, and lowered into the tubing.
  • the arm assembly 57 is tucked in so that the arms and the valve lie within the elongated recess 55 of the tray body 54.
  • the leaf spring 74 causes the upper outer surface 67 of the lower arm 60 to slide gently along the inner wall of the tubing as the tool 50 is lowered into the well.
  • the tool When the kickover tool 50 has been lowered to a point below the mandrel 10 in which the valve 56 is to be set, the tool is stopped, and then raised slowly upward.
  • the upper end portion 67 or "finger" of the lower arm 60 will engage a helical lower surface 36 on the orienting sleeve 33, which causes the entire kickover tool 50 to rotationally index until the finger is aligned with the slot 37 (or 137 in the case of the embodiment shown in Figure 3A).
  • the spring 74 causes the upper end of the arm 60 to pivot further outward so that the ears 70,71 enter the lower end of the T-shaped channel 38 as shown in Figure 10.
  • the upper end, or nose, of the gas lift valve 56 is tilted outward into precise alignment with the seating bore 16 due to sliding engagement of the outer wall surfaces 76 of the upper arm 61 with the inner wall surfaces of the orienting sleeve 33 to either side of the slot 37.
  • the nose of the valve enters such bore as the ears 70,71 transverse the channel 38.
  • the tool 50 is raised further upward to complete the valve setting operation, and until the latch automatically engages in the region 18 above the shoulder 20. An upward jarring blow then is applied to shear the pin 100 that secures the wedge 89 to the block 98.
  • the block 98 moves relatively downward and against the upper end surface of the housing 86, which positions the nose of the wedge 89 against the lower surface 64 of the arm 60.
  • the coil spring 95 biases the plunger 94, the rod 91 and wedge 89 upward, however upward movement temporarily is prevented by engagement of the wedge with the arm surface 65.
  • a downward jarring blow is applied to shear one or more shear pins that connect the running head to the latch assembly.
  • the tool is lowered in the mandrel 10 until the arm engages the inner inclined surface of the swage nipple 30. Further downward movement causes the arm 60 to pivot inward about the pin 58 until it is approximately aligned with the axis of the body 54. As such pivoting occurs, the wedge 89 is forced upward by the spring 95 to position the inclined surfaces 90 and 64 in contact with one another as shown in Figure 11. The ears 70,71 force the upper arm 61 inwardly to a retracted position, so that both arms are locked in the inner position by the wedge 89. The kickover tool 50 then can be raised to the surface in a condition such that neither arm can hang up on any shoulder that may be present in the tubing.
  • Another means of locking the arms 60, 61 in retracted position is to lower the kickover tool 50 until the bottom plug 88 encounters a stop that normally is placed in the tubing in preparation for a wireline operation.
  • the pins 105 and 100 are sheared, which allows the power spring 95 to extend and force the wedge 89 upward.
  • the arms 60, 61 are being held retracted by the inner wall of the tubing.
  • the inclined surface 90 of the wedge 89 enters behind the lower end portion of the lower arm 60 as described above, and functions to lock the arms 60 and 61 in their inner or retracted positions. In such condition, the kickover tool 50 can be removed from the tubing well with ample clearance between the outer surfaces of the arms and the inner wall surfaces of the tubing.
  • the apparatus is relatively simple in construction and operation, to greatly enhance downhole reliability. Since the T-shaped projection of the lower arm of the kickover tool engages and slides in a channel in the mandrel, the arm assembly and valve are positively positioned in accurate alignment with the valve seating bore. During setting, the lower arm rests on the block, which engages the kickover tool body, so that impact jarring blows are not applied to the lower pivot pin. After setting has been accomplished, the arms are locked in retracted position by lowering the tool in the mandrel, or by engagement with a stop in the tubing.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Metal Extraction Processes (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

Un mandrin de poche latérale comprend une chemise d'orientation (33) présentant des surfaces de guidage (36) conduisant à une fente longitudinale (37) qui forme, en combinaison avec un évidement longitudinal adjacent dans le mandrin, un canal en T qui agit de concert avec des éléments en saillie (70, 71) sur le bras (66) d'un outil de renversement pour aligner avec précision la soupape d'extraction au gaz (56) avec le passage du réceptacle (16) dans le mandrin. L'outil de renversement comprend un ensemble de bras supérieur (61) et inférieur (66) montés pivotants, le bras inférieur (66) pouvant pivoter par rapport au corps de l'outil. Le bras inférieur comprend un doigt de localisation et des éléments en saillie transversaux (70) qui s'engagent et coulissent dans un canal en T (37) du mandrin pour obtenir un alignement précis de la soupape par rapport au passage récepteur (16).

Claims (26)

  1. Ensemble de forage comprenant : un mandrin à poche latérale (10), ayant un corps de mandrin allongé sensiblement tubulaire (11), avec des moyens (26,32) au niveau de ses extrémités opposées pour monter ce mandrin dans un train de tiges, le corps de mandrin ayant un alésage principal (12) et un réceptacle (16) décalé latéralement sur le côté de l'alésage principal pour recevoir un dispositif de réglage du débit (56); un manchon d'orientation (33,133) fixé dans le corps du mandrin et ayant des surfaces de guidage (36) conduisant à une fente longitudinale (37,137); un outil de décentrage (50) ayant un corps d'outil allongé sensiblement tubulaire (51) avec un évidement s'ouvrant vers l'extérieur le long d'un côté de ce corps; un premier bras (60) ayant une première extrémité montée à pivotement sur ce corps d'outil (51) adjacent à une première extrémité de cet évidement, la deuxième extrémité de ce bras étant agencée pour se déplacer entre une position intérieure et une position extérieure par rapport au corps d'outil; caractérisé en ce qu'il est prévu des moyens de canaux longitudinaux (38,70,71,110,112,141,142) adjacents à cette fente pour coopérer avec des moyens protubérants sur ce bras pour maintenir positivement le bras (61) de l'outil de décentrage (50) dans une position étendue vers l'extérieur lorsque l'outil de décentrage est déplacé à l'intérieur de l'alésage du mandrin et en ce que le réceptacle (16) et le manchon (33,133) sont disposés adjacents à des extrémités opposés respectives de ce corps.
  2. Ensemble de forage selon la revendication 1, caractérisé en ce que le réceptacle (16) est disposé adjacent à l'extrémité supérieure du corps (11) du mandrin et en ce que le manchon (33,133) est disposé adjacent à l'extrémité inférieure du corps du mandrin.
  3. Ensemble de forage selon la revendication 2, caractérisé en ce que le réceptacle (16) comporte un alésage qui s'étend vers le haut à travers la paroi du corps (11) du mandrin, cet alésage étant adapté pour coopérer avec des moyens de garniture sur un dispositif de réglage du débit (56).
  4. Ensemble de forage selon la revendication 3, caractérisé en ce que l'axe longitudinal (22) dudit alésage est incliné en faisant un petit angle vers le bas et vers l'intérieur par rapport à l'axe longitudinal (23) de l'alésage principal.
  5. Ensemble de forage selon l'une des revendications précédentes, caractérisé en ce que les moyens de canaux (38,137) sont procurés par un évidement longitudinal (38,112) ayant une largeur supérieure à la largeur de la fente (37,137) de façon à définir, en coopération avec les parois latérales de cette fente, une ouverture en forme générale de T.
  6. Ensemble de forage selon la revendication 5, caractérisé en ce que les moyens de canaux (38) s'étendent dans le corps du mandrin depuis un premier point adjacent à une première extrémité de la fente jusqu'à un deuxième point (47) situé à une distance déterminée (d) au-delà de la deuxième extrémité de la fente.
  7. Ensemble de forage selon la revendication 6, caractérisé en ce que les surfaces de guidage (36) sont formées de façon à conduire en hélice vers le haut jusqu'à l'extrémité inférieure de la fente, le deuxième point (47) se trouvant en dessous de la deuxième extrémité de la fente.
  8. Ensemble de forage selon la revendication 7, caractérisé en ce que le réceptacle (16) est formé dans un raccord d'appui de courte longueur (14), qui est formé en tant que partie intégrante de la section supérieure du corps du mandrin, ce réceptacle comprenant un alésage d'étanchéité qui s'étend vers le haut à travers la paroi de ce raccord jusqu'à l'extérieur du mandrin.
  9. Ensemble de forage selon la revendication 8, caractérisé en ce que le réceptacle comporte en outre un évidement de verrouillage (18) ayant un diamètre supérieur au diamètre de l'alésage d'étanchéité, cet évidement de verrouillage (18) étant situé adjacent à l'extrémité inférieure de l'alésage d'étanchéité, et comportant en outre un épaulement de verrouillage (20) incurvé et se projetant vers l'intérieur au niveau de l'extrémité inférieure de l'évidement de verrouillage.
  10. Ensemble de forage selon la revendication 9, comprenant en outre des moyens élastiques (74,80) pour rappeler l'extrémité extérieure du bras en direction de sa position extérieure.
  11. Ensemble de forage selon la revendication 10, comportant en outre un deuxième bras (61) articulé sur le premier bras (60), ce deuxième bras ayant des moyens (82,83) pour le raccorder à une tête qui est couplée de façon amovible à un dispositif de réglage de débit (56).
  12. Ensemble de forage selon la revendication 11, caractérisé en ce que ces moyens élastiques sont constitués par un ressort (80) disposé pour réagir entre le premier bras (60) et le deuxième bras (61).
  13. Ensemble de forage selon l'une des revendications précédentes, caractérisé en ce que les moyens protubérants comportent deux oreilles dirigées vers l'extérieur (70,71) disposées sur les côtés opposés du premier bras (60) au niveau du bord extérieur de celui-ci pour constituer une configuration telle qu'une section à travers ce bras et ces oreilles ait la forme d'un T.
  14. Ensemble de forage selon l'une des revendications précédentes, caractérisé en ce qu'une portion (67) de la deuxième extrémité de ce bras (60) s'étend au-delà de la paire d'oreilles (70,71) pour constituer un doigt de positionnement.
  15. Ensemble de forage selon la revendication 14, comportant en outre un deuxième bras (61) articulé sur le premier bras (60) et adapté pour être raccordé à une tête de pose ou de récupération, et des moyens de ressort (80) pour rappeler vers l'extérieur ces premier et deuxième bras.
  16. Ensemble de forage selon la revendication 5, caractérisé en ce que la portion terminale articulée du deuxième bras (61) a deux branches parallèles espacées (75), la deuxième extrémité du premier bras (60) étant logée entre ces branches, le deuxième bras (61) ayant des moyens évidés sur son côté extérieur disposés pour recevoir ces oreilles lorsque les premier et deuxième bras sont pratiquement alignés l'un avec l'autre.
  17. Ensemble de forage selon l'une des revendications précédentes, comportant en outre des moyens pouvant être mis en oeuvre de façon sélective (85) pour verrouiller le premier bras (60) dans sa position intérieure.
  18. Ensemble de forage selon la revendication 17, caractérisé en ce que ces moyens de verrouillage comprennent des moyens cunéiformes (89) normalement retenus sur le corps d'outil, des moyens élastiques, de préférence un ressort (95) pour repousser ces moyens cunéiformes (89) en coopération de verrouillage avec le premier bras (60), et des moyens de libération (98,100) de préférence pouvant être rompus, pour permettre à ces moyens cunéiformes de venir coopérer avec le premier bras pour le verrouiller dans sa position intérieure.
  19. Ensemble de forage selon la revendication 18, caractérisé en ce que ces moyens cunéiformes (89) comportent une tête sur laquelle se trouve une surface extérieure inclinée (90), le premier bras ayant une surface intérieure inclinée en correspondance (64), les surfaces inclinées (64,90) coopérant l'une avec l'autre lors de l'actionnement des moyens de libération.
  20. Ensemble de forage selon la revendication 19, comportant en outre un bloc de guidage (98) monté, coulissant, sur le corps d'outil adjacent à la première extrémité du premier bras, le bloc de guidage ayant une rainure longitudinale (101) pour recevoir les moyens cunéiformes (89), et des surfaces terminales incurvées concaves qui coopèrent en coulissement avec des surfaces terminales incurvées convexes sur la première extrémité du premier bras, ces moyens de libération comprenant un élément pouvant être cisaillé (100) pour fixer les moyens cunéiformes sur le bloc de guidage avec ces surfaces inclinées espacées l'une de l'autre.
  21. Ensemble de forage selon l'une des revendications 18, 19 ou 20, caractérisé en ce que les moyens de libération comprennent en outre un actionneur de libération (102) qui se projette au-delà d'une extrémité du corps d'outil, un deuxième élément pouvant être cisaillé (105) pour fixer cet actionneur sur le corps, cet actionneur (102) étant disposé de telle sorte que son impact contre une butée dans un train de tiges provoque le cisaillement du deuxième élément (105) ainsi que du premier élément (100) pour permettre aux moyens cunéiformes (89) de verrouiller le premier bras (60) dans sa position intérieure.
  22. Ensemble de forage selon l'une des revendications 17 à 21, comprenant en outre un deuxième bras (61) ayant une première extrémité articulée sur la deuxième extrémité du premier bras (60), ce deuxième bras pouvant se déplacer entre une position intérieure et une position extérieure par rapport au corps d'outil, et des moyens comportant les moyens protubérants pour maintenir le deuxième bras dans sa position intérieure lorsque le premier bras est verrouillé dans sa position intérieure par les moyens de verrouillage.
  23. Ensemble de forage selon la revendication 22, comprenant en outre des moyens de ressort (74,80) pour rappeler les premier et deuxième bras (60,61) vers leurs positions extérieures.
  24. Ensemble de forage selon l'une des revendications précédentes, dans lequel les protubérances (70,71) du deuxième bras peuvent coopérer avec des surfaces intérieures du manchon d'orientation adjacentes à la fente longitudinale pour aligner le deuxième bras d'une manière précise par rapport au premier bras et au réceptacle.
  25. Ensemble de forage comprenant :
    un mandrin à poche latérale (10), ayant un corps de mandrin allongé sensiblement tubulaire (11), avec des moyens (26,32) au niveau de ses extrémités opposées pour monter ce mandrin dans un train de tiges, le corps du mandrin ayant un alésage principal (12) et un réceptacle (16) latéralement décalé sur le côté de cet alésage principal pour recevoir un dispositif de réglage de débit (56);
    un manchon d'orientation (33,133) fixé sur le corps de mandrin et ayant des surfaces de guidage (36) conduisant à une fente longitudinale (37,137);
    caractérisé en ce qu'il est prévu des moyens de canaux longitudinaux (38,70,71,110,112,141,142) adjacents à cette fente pour coopérer avec des moyens protubérants prévus sur le bras (61) d'un outil de décentrage (50) pour maintenir positivement le bras dans une position étendue vers l'extérieur lorsque l'outil de décentrage est déplacé à l'intérieur de l'alésage du mandrin et en ce que le réceptacle (16) et le manchon (33,133) sont disposés adjacents à des extrémités opposées respectives du corps.
  26. Outil de décentrage (50) destiné à être utilisé avec un mandrin à poche latérale dans un ensemble de forage, cet outil de décentrage ayant un corps d'outil allongé sensiblement tubulaire (51) avec un évidement s'ouvrant vers l'extérieur le long d'un côté de ce corps;
    un premier bras (60) ayant une première extrémité montée à pivotement sur le corps d'outil (51) adjacent à une première extrémité de cet évidement, la deuxième extrémité du bras étant disposée pour se déplacer entre une position intérieure et une position extérieure par rapport au corps d'outil;
    caractérisé en ce que le bras (61) comprend des moyens protubérants pour coopérer avec des moyens de canaux formés dans le mandrin (38,70,71,110,112,141,142) pour maintenir positivement le bras de l'outil de décentrage dans une position étendue vers l'extérieur lorsque cet outil de décentrage est déplacé à l'intérieur de l'alésage du mandrin.
EP89902155A 1988-02-03 1989-01-24 Mandrel a fente en t et outil de renversement Expired - Lifetime EP0400037B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15165488A 1988-02-03 1988-02-03
US151654 1988-02-03
PCT/US1989/000295 WO1989007189A1 (fr) 1988-02-03 1989-01-24 Mandrel a fente en t et outil de renversement

Publications (2)

Publication Number Publication Date
EP0400037A1 EP0400037A1 (fr) 1990-12-05
EP0400037B1 true EP0400037B1 (fr) 1994-04-06

Family

ID=22539690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89902155A Expired - Lifetime EP0400037B1 (fr) 1988-02-03 1989-01-24 Mandrel a fente en t et outil de renversement

Country Status (8)

Country Link
EP (1) EP0400037B1 (fr)
JP (1) JPH03503664A (fr)
AU (1) AU629199B2 (fr)
BR (1) BR8907223A (fr)
CA (1) CA1302874C (fr)
DE (1) DE68914442D1 (fr)
MX (1) MX172479B (fr)
WO (1) WO1989007189A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561535A (en) * 1969-10-31 1971-02-09 Harold Brown Co Method for simultaneously guiding at least two insertable mechanisms in a well tubing
US4368780A (en) * 1981-08-14 1983-01-18 Otis Engineering Corporation Kickover tool
US4440222A (en) * 1982-02-24 1984-04-03 Otis Engineering Corporation Side pocket mandrel with improved orienting means
EP0351884A1 (fr) * 1984-12-07 1990-01-24 CRAWFORD, Douglass W. Dispositif de commande d'un écoulement et élément d'étanchéite
US4640350A (en) * 1985-02-11 1987-02-03 Ava International Corporation Kickover tool
US4744415A (en) * 1987-04-24 1988-05-17 Crawford Douglass W Kickover tool for placing and removing well flow control devices

Also Published As

Publication number Publication date
DE68914442D1 (de) 1994-05-11
JPH03503664A (ja) 1991-08-15
EP0400037A1 (fr) 1990-12-05
BR8907223A (pt) 1991-03-05
CA1302874C (fr) 1992-06-09
AU629199B2 (en) 1992-10-01
MX172479B (es) 1993-12-17
AU3041489A (en) 1989-08-25
WO1989007189A1 (fr) 1989-08-10

Similar Documents

Publication Publication Date Title
US4976314A (en) T-slot mandrel and kickover tool
AU615828B2 (en) Method of installing a well tool in a well flow conductor
AU598937B2 (en) Apparatus for monitoring a parameter in a well
US4846269A (en) Apparatus for monitoring a parameter in a well
EP0298683A2 (fr) Dispositif de verrouillage pour fond de puits
US5197773A (en) Running and pulling tool
US4164977A (en) Well latch
GB1597690A (en) Well equipment setting or retrieval tool
US4254829A (en) Well locking device
GB2029476A (en) Well locking device and method
US20070267200A1 (en) Kickover Tool and Selective Mandrel System
US4002203A (en) Well installation
US4368780A (en) Kickover tool
US3799259A (en) Side pocket kickover tool
GB2115461A (en) Well flow control apparatus
US4828027A (en) Apparatus for monitoring a parameter in a well
EP0400037B1 (fr) Mandrel a fente en t et outil de renversement
US4765403A (en) Apparatus for placing and removing well flow control devices
US5119875A (en) Hydraulically actuated lock system
EP0325835A1 (fr) Dispositif d'encliquetage mécanique fonctionnant par gravité et traction
US4744415A (en) Kickover tool for placing and removing well flow control devices
US4232894A (en) Selectively releasable overshot and pull tool
AU585298B2 (en) Side pocket mandrel
US4813730A (en) Retrieval device for a well control tool
CA1190143A (fr) Outil de decentrage avec dispositif escamoteur du bras de pivotement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19900730

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 19920807

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940406

Ref country code: DE

Effective date: 19940406

REF Corresponds to:

Ref document number: 68914442

Country of ref document: DE

Date of ref document: 19940511

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950124

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950124