An assembly of a drill pipe and a connector (10) for connecting a hose (50) to a side-bore (52) of a the drill pipe (54), the drill pipe (54) having a wall (54a) enclosing a main bore (54b), and the side-bore (52) extending through the wall (54a) from the main bore (54b) to the exterior of the drill
An assembly of a drill pipe and a connector (10) for connecting a hose (50) to a side-bore (52) of a the drill pipe (54), the drill pipe (54) having a wall (54a) enclosing a main bore (54b), and the side-bore (52) extending through the wall (54a) from the main bore (54b) to the exterior of the drill pipe (54), the connector (10) comprising a hose connector body (12) which forms a first end of the connector (10) which is adapted to be connected to the hose (50), and a drill pipe connector body (14) which forms a second end of the connector (10) which is connected to the drill pipe (54), the connector (10) having an exterior surface and an interior surface which encloses a bore (20, 22) extending from the first end of the connector (10) to a second end of the connector (10), the drill pipe connector body (12) being provided with at least one bayonet connector formation (44) which extends from the exterior surface of the connector (10) generally radially outwardly relative to the bore (20, 22), the bayonet connector formation (44) extending over less than half of the circumference of the exterior surface of the drill pipe connector body (14), wherein the drill pipe connector body (14) is also provided with means for ensuring a substantially fluid tight seal between the connector (10) and the surface of the drill pipe (54) enclosing the side-bore (52).
대표청구항▼
1. A drill pipe and connector assembly for connecting a hose to a side-bore of the drill pipe, the drill pipe having a wall enclosing a main bore, and the side-bore extending through the wall from the main bore to the exterior of the drill pipe, the connector comprising a hose connector body which f
1. A drill pipe and connector assembly for connecting a hose to a side-bore of the drill pipe, the drill pipe having a wall enclosing a main bore, and the side-bore extending through the wall from the main bore to the exterior of the drill pipe, the connector comprising a hose connector body which forms a first end of the connector which is adapted to be connected to the hose, and a drill pipe connector body which forms a second end of the connector which is connected to the drill pipe, the connector having an exterior surface and an interior surface which encloses a bore extending from the first end of the connector to a second end of the connector, the drill pipe connector body being provided with at least one bayonet connector formation which extends from the exterior surface of the drill pipe connector body generally radially outwardly relative to the bore, the bayonet connector formation being rotationally and axially fixed relative to the drill pipe connector body and extending over less than half of the circumference of the exterior surface of the drill pipe connector body, wherein the drill pipe connector body is also provided with a seal which is mounted on the drill pipe connector body for ensuring a substantially fluid tight seal between the connector and the surface of the drill pipe enclosing the side-bore. 2. An assembly according to claim 1 wherein the drill pipe connector body may be rotated relative to the hose connector body, and the connector further includes means for providing a substantially fluid tight seal between the drill pipe connector body and the hose connector body. 3. An assembly according to claim 1 wherein the drill pipe connector body is secured relative to the hose connector body by means of a locking ring which extends around the exterior of the connector and has a first part which is provided with means for securing the locking ring to one of the hose connector body or the drill pipe connector body, and a second part which engages with a locking formation provided on the other of the hose connector body or drill pipe connector body to restrict or prevent translational movement of the hose connector body relative to the drill pipe connector body. 4. An assembly according to claim 3 wherein the means for securing the locking ring to one of the hose connector body or drill pipe connector body comprises a screw thread. 5. An assembly according to claim 4 wherein the means for securing the locking ring to the hose connector body or drill pipe connector body includes one or more locking pins, which may or may not be threaded, each of which is located in an aperture extending through the first part of the locking ring, and which in use extend into a corresponding aperture provided in the connector body to which the locking ring is secured. 6. An assembly according to claim 2 wherein the drill pipe connector body is provided with a handle which is adapted to be grasped by a user to assist the user in rotating the drill pipe connector body relative to the hose connector body. 7. An assembly according to claim 1 wherein the connector is further provided with locking means which is operable to engage with the drill pipe with which the or each bayonet connector formation of the drill pipe connector body is engaged to substantially prevent rotation of the drill pipe connector body with respect to the drill pipe. 8. An assembly according to claim 7 wherein the said locking means includes a threaded ring which is mounted around the exterior of the connector and engaged with a corresponding threaded portion of the exterior of the connector, and one or more elongate pins which extend generally perpendicular to the threaded ring towards the second end of the connector. 9. An assembly according to claim 8 wherein the locking means is provided with a handle which may be used to assist a user in screwing the threaded ring along the threaded portion of the exterior of the connector. 10. An assembly according to claim 1 wherein the drill pipe is provided with a valve member, the valve member being movable between an open position in which flow of fluid along the side bore is permitted and a closed position in which flow of fluid along the side bore is substantially prevented, and the connector is provided with a valve actuating member which comprises a rod which extends from the bore of the connector to the exterior of the connector via an aperture in the connector, the valve actuating member being movable to engage with the valve member to move the valve member between the open position and the closed position. 11. An assembly according to claim 10 wherein the rod is provided with a screw thread which engages with a corresponding screw thread provided in the aperture in the connector. 12. An assembly according to claim 1 wherein the or each bayonet connector formation is engaged with a corresponding engagement formation provided in the wall of the tubular surrounding the side bore so that translational movement of the drill pipe connector body relative to the tubular is restricted or prevented. 13. An assembly according to claim 12 wherein the or each engagement formation comprises a lip formation which extends radially inwardly from the wall enclosing the side bore into the side bore, around only part of the circumference of the wall enclosing the side bore, and along only part of the depth of the wall enclosing the side bore, the depth being the distance between the exterior of the tubular and the main bore. 14. An assembly according to claim 12 wherein there are the same number of engagement formations as there are bayonet connector formations provided on the drill pipe connector body of the connector. 15. An assembly according to claim 12 wherein the height of the bayonet connector formations is such that the maximum diameter of the second end of the connector is less than the maximum internal diameter of the side bore. 16. An assembly according to claim 15 wherein the height of the lip formations is such that the maximum diameter of the second end of the connector is greater than the minimum internal diameter of the side bore. 17. An assembly according to claim 12 wherein, where one engagement formation is provided, the gap between end portions of the engagement formation is large enough for the bayonet connector formation or formations to pass through the gap between the ends of the engagement formation. 18. An assembly according to claim 12 wherein, where more than one engagement formation is provided, the separation of end portions of adjacent engagement formations is large enough one or more bayonet connector formation or formations to pass through the gap between the ends of the adjacent engagement formations. 19. A method of mounting a connector between a hose and a tubular, the tubular having a wall enclosing a main bore, and the side-bore extending through the wall from the main bore to the exterior of the tubular, the connector comprising a hose connector body which forms a first end of the connector which is adapted to be connected to the hose, and a drill pipe connector body which forms a second end of the connector which is connected to the tubular, the connector having an exterior surface and an interior surface which encloses a bore extending from the first end of the connector to a second end of the connector, the drill pipe connector body being provided with at least one bayonet connector formation which extends from the exterior surface of the connector generally radially outwardly relative to the bore, the bayonet connector formation extending over less than half of the circumference of the exterior surface of the drill pipe connector body, wherein the drill pipe connector body is also provided with means for ensuring a substantially fluid tight seal between the connector and the surface of the tubular enclosing the side-bore, the method including the steps of: securing the hose connector body on the hose so that flow of fluid from the hose into the bore of the connector is permitted,either before or after which, securing the drill pipe connector body to the hose connector body,then, rotating the drill pipe connector body relative to the hose connector body and the tubular so as to bring the drill pipe connector body into a first angular orientation with respect to the tubular;then inserting the second end of the connector into the side bore and rotating the drill pipe connector body relative to the hose connector body and the tubular to bring drill pipe connector body into a second angular orientation with respect to the tubular in which at least one bayonet connector formation engages with corresponding bayonet engagement formation provided around the side-bore of the tubular, the engagement of the bayonet connector formation with the bayonet engagement formation preventing removal of the drill pipe connector body from the side bore. 20. A method according to claim 19 wherein the step of securing the drill pipe connector body to the hose connector body comprises engaging the drill pipe connector body with the hose connector body, mounting a locking ring around the exterior of the connector and securing a first part of the locking ring to one of the hose connector body or the drill pipe connector body such that a second part engages with a locking formation provided on the other of the hose connector body or the drill pipe connector body to restrict or prevent translational movement of the hose connector body relative to the drill pipe connector body. 21. A method according to claim 19 wherein the method further includes the step of, after rotation of the drill pipe connector body to the second orientation, operating a locking means so that the locking means comes into engagement with the tubular to substantially prevent further rotation of the drill pipe connector body with respect to the tubular. 22. A method according to claim 19 wherein the method further includes the step of, after rotation of the drill pipe connector body to the second orientation, operating a valve actuating member to move a valve member provided in the side bore of the tubular from a closed position to an open position. 23. A connector for connecting a hose to a side-bore of a tubular, the tubular having a wall enclosing a main bore, and the side-bore extending through the wall from the main bore to the exterior of the tubular, the connector comprising a hose connector body which forms a first end of the connector which is adapted to be connected to the hose, and a drill pipe connector body which forms a second end of the connector which is adapted to be connected to the tubular with a bayonet connector formed on the drill pipe connector body, the connector having an exterior surface and an interior surface which encloses a bore extending from the first end of the connector to a second end of the connector, wherein the connector is provided with a valve actuating member which extends into the drill pipe connector body and which may be operated when the connector is connected between a hose and a tubular to move between a first position and a second position, wherein the valve actuating member comprises a rod which extends from the bore of the connector to the exterior of the connector via an aperture in the connector. 24. A connector according to claim 23 wherein the movement of the valve actuating member from the first position to the second position comprises translational movement towards the second end of the connector. 25. A connector according to claim 23 wherein the rod is provided with a screw thread which engages with a corresponding screw thread provided in the aperture in the connector.
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이 특허에 인용된 특허 (20)
Legris AndrA. J. (Rennes FRX), Assembly for perfecting fluid distribution in multiple conduits.
Crawford ; III Russell C. (P.O. Box 27054 Memphis TN 38127) Crawford George M. (P.O. Box 27054 Memphis TN 38127) Crawford ; Jr. Russell C. (P.O. Box 27054 Memphis TN 38127), Door drilling Kelly.
McCann Dominic P. J. (Paris FRX) Kerbart Yves (Gentilly TX FRX) Burgess Trevor M. (Missouri City TX), Method for the estimation of pore pressure within a subterranean formation.
McKnight Devereux J. (1471 Old Spanish Trail Broussard LA 70518) McKnight Brent H. (Nueces County TX) Cunningham James A. (Patterson LA), Oilfield valve.
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