E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/18 (2006.01) E21B 4/00 (2006.01) E21B 7/04 (2006.01) E21B 7/06 (2006.01) E21B 11/06 (2006.01) E21B 17/20 (2006.01)
Patent
CA 2405533
A flexible hose assembly (10) for horizontal well drilling is provided. The flexible hose assembly (10) has a number of spaced thruster couplings (12) along its length to impart drilling force to a nozzle blaster (24) at an end of the flexible hose (11). The thruster couplings (12) have rearwardly oriented holes (18) which impart a forward drilling force upon the exit of high pressure water through the holes (18). A method of horizontal well drilling using the above-described flexible hose is also provided. The method is particularly useful for shallow wells, such as 50-2000 feet.
L'invention concerne un ensemble de tuyaux flexibles (10) pour le forage de puits horizontaux. Ledit ensemble de tuyaux flexibles (10) comporte, sur sa longueur, un certain nombre de raccords à propulseurs espacés (12) servant à communiquer la force de forage à une buse de projection (24) située à une extrémité du tuyau flexible (11). Les raccords à propulseurs (12) possèdent des orifices tournés vers l'arrière (18) communiquant une force de forage vers l'avant par la sortie d'eau haute pression à travers lesdits orifices (18). L'invention concerne également un procédé de forage de puits horizontaux utilisant le tuyau flexible décrit ci-dessus. Ledit procédé convient particulièrement aux puits à nappe constante, d'une profondeur de 50 à 2 000 pieds par exemple.
Gowling Lafleur Henderson Llp
Mazorow Henry B.
LandOfFree
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