Pipe handling apparatus and method of landing items at a...

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 19/07 (2006.01) E21B 15/02 (2006.01) E21B 19/00 (2006.01) E21B 19/06 (2006.01) E21B 19/16 (2006.01)

Patent

CA 2410574

A drill pipe (18) and drill pipe handling apparatus for oil and gas drilling rigs, the drill pipe (18) having an enlarged diameter section (21) positioned between the ends of the drill pipe (18). The enlarged diameter section (21) of drill pipe (18) has a shoulder (21a and b) which corresponds with and is engaged by a shoulder (109 or 209) located on wedge members (106 or 206) of a holder (100 or 200) on a drilling rig (10) for supporting the drill pipe (18) without crushing or otherwise damaging the drill pipe (18) during and after addition or removal of joints of drill pipe (18). A method of lowering items from a drilling rig (10) to a well (14) located below it through the use of a landing string (19) comprised of drill pipe (18) having an enlarged diameter section (21) with a shoulder (21a and b), in combination with upper and lower holders (100 and 200) having wedge members (106 and 206) with shoulders (109 and 209) that engage and support the drill pipe (18) at the shoulder (21a and b) of the enlarged diameter section (21).

Cette invention concerne une tige de forage (18) et un dispositif de manutention de tige de forage pour plates-formes de forage (pétrole et gaz). La tige de forage (18) comporte une partie au diamètre accru (21) entre ses extrémités. Cette partie (21) de plus grand diamètre présente un épaulement (21a et b) qui correspond à un autre épaulement (109 ou 209), dans lequel il s'engage, sur des éléments de coin (106 ou 206) d'un support (10 ou 200) monté sur une plate-forme de forage (10) qui supporte la tige de forage (18) sans l'écraser ni l'endommager pendant et après l'adjonction d'éléments de raccordement sur ladite tige (18). L'invention concerne également une méthode d'abaissement de pièces, à partir d'une plate-forme de forage (10), dans un puits (4) situé en dessous au moyen d'un train de tiges (19) composé d'une tige de forage (18) avec partie de diamètre accru (21) à épaulement (21a et b), conjointement avec des supports supérieurs et inférieurs (100 et 200) dotés d'éléments de coin (106 et 206) avec épaulements (109 et 209) qui s'engagent et maintiennent la tige de forage (18) au niveau de l'épaulement (21a et b) de la partie de plus grand diamètre (21).

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