VARIABLE ANGLE ELBOW CONNECTION FOR DIRECTED DRILLING

Abstract

Abstract Translated from French RACCORD COUDE, SELON LE BREVET PRINCIPAL, POUR FORAGES DIRIGES. LES MOYENS AUXILIAIRES DE VERROUILLAGE, PREVUS DANS LE BREVET PRINCIPAL, COMPORTENT AU MOINS UN DOIGT 100 ESCAMOTABLE RADIALEMENT, DES RAINURES AXIALES 107 ET DES MOYENS 103-104 PERMETTANT LA COOPERATION DU DOIGT ESCAMOTABLE 100 ET DES RAINURES AXIALES 107 PENDANT LA REMONTEE DE L'ARBRE DE LIAISON 20. UN ELEMENT DE L'ENSEMBLE FORME PAR LE DOIGT ESCAMOTABLE 100 ET LES RAINURES AXIALES 107 EST PORTE PAR L'ARBRE, L'AUTRE ELEMENT ETANT PORTE PAR LE CORPS TUBULAIRE INFERIEUR. APPLICATION AU FORAGE DIRIGE DANS LE SOL. ELBOW FITTING, ACCORDING TO THE MAIN PATENT, FOR DIRECTED DRILLING. THE AUXILIARY LOCKING MEANS, PROVIDED FOR IN THE MAIN PATENT, INCLUDE AT LEAST ONE 100 RADIALLY RETRACTABLE FING, 107 AXIAL GROOVES AND 103-104 MEANS ALLOWING THE COOPERATION OF THE 100 RETRACTABLE FINGER AND 107 AXIAL GROOVES DURING THE SHAFT OF CONNECTION 20. ONE ELEMENT OF THE UNIT SHAPED BY THE RETRACTABLE FINGER 100 AND THE AXIAL GROOVES 107 IS CARRIED BY THE SHAFT, THE OTHER ELEMENT IS CARRIED BY THE LOWER TUBULAR BODY. APPLICATION TO DIRECTED DRILLING IN SOIL.

Inventors

• 👤 Jean-Paul Nguyen
• 👤 Emmanuel Laval
• 👤 Andre Cendre

Bibliographic Details