E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 4/18 (2006.01) E21B 44/00 (2006.01) E21B 47/00 (2006.01) E21B 47/01 (2006.01)
Patent
CA 2381324
The present invention provides continuous or near continuous motion drill strings which include motion sensitive and other MWD sensors which take stationary measurements while the drilling assembly is continuing to drill the wellbore. For simultaneous continuous drilling and stationary measurements, the present invention provides a drilling assembly wherein a force application system almost continuously applies force on the drill bit while maintaining a housing or drill collar section stationary. Motion sensitive sensors carried by the drill collar take stationary measurements. A steering device between the drill bit and the force application system maintains drilling of the wellbore along a prescribed well path.
L'invention concerne des trains de tige à mouvement continu ou quasi continu, qui comprennent des capteurs sensibles aux mouvements et d'autres capteurs à mesure de fond pendant le forage (MWD) qui prennent des mesures stationnaires, pendant que l'assemblage de forage continue de forer le puits. Pour le forage continu et les mesures stationnaires simultanées, la présente invention propose un assemblage de forage, dans lequel un système d'application de force quasi continu, applique cette force sur l'outil de forage, tout en maintenant un logement ou une section de masse-tige stationnaire. Des capteurs sensibles aux mouvements placés sur la masse-tige prennent des mesures stationnaires. Un appareil orientable, entre l'outil de forage et le système d'application de force, poursuit le forage du puits en suivant une trajectoire de puits prédéterminée.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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