F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 19/065 (2006.01) E21B 17/04 (2006.01) E21B 17/20 (2006.01)
Patent
CA 2378704
A connector (16, 24, 18, 20) for the connection of a pipe end portion of coiled tubing (10) comprises means (22) for connecting a piece of downhole equipment, and is formed by three separate parts that can be screwed together two and two, of which a radially inner shrinkable adapter sleeve (20) compressively surrounded by an elongate outer adapter and connector sleeve (18) ensures the securing of the end portion of the coiled tubing (10), whereas a freely projecting, internally threaded end portion of the outer sleeve (18) ensures the connection to the remaining part (16, 24) of the connector in the screwing together. To obtain a connector which, besides exhibiting superior tensile, flexural and compressive strength properties, is also well suited to absorb torques applied, the inner shrinkable adapter sleeve (20), which has an external jacket surface of an axially conical extent, is provided with external threads, complementarily matched by the internal threads of the outer adapter and connector sleeve (18), which are formed in the bore-defining inner circumferential surface, which has a conical extent in the axial direction, its conicity complementarily corresponding to the externally conical extent of the inner adapter sleeve (20).
Cette invention concerne un raccord (16, 24, 18, 20) destiné au raccordement de la partie extrémité d'un tube à paroi spiralée (10). Ce raccord comprend un dispositif de raccordement (22) pour équipement à fond de puits. Le dispositif (20) est constitué de trois éléments distincts qui peuvent être vissés deux à deux . Un manchon (20) intérieur radicalement rétrécissable (20), entouré d'un adaptateur extérieur de forme allongée (18), assure la fixation de la partie d'extrémité du tube à paroi spiralée(10) cependant qu'une partie d'extrémité à filetage intérieur, dépassant librement de l'adaptateur (18), assure le raccordement par vissage de l'élément restant (16, 24) du raccord. L'obtention de caractéristiques supérieures en termes de résistance à la rupture, aux flexions et aux forces de compression ainsi que de capacité d'absorption de couple a été rendue possible grâce à l'emploi d'un manchon de raccordement interne rétrécissable (20) dont la surface extérieure de forme conique à filetage extérieur prend dans le taraudage de l'adaptateur extérieur et du manchon (18) formés dans la surface de circonférence intérieure de l'alésage, et dont la conicité correspond à la conicité extérieure du manchon (20).
Bakke Technology As
Ridout & Maybee Llp
LandOfFree
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