Screw-type cutting motor, especially for well drilling
The invention relates to drilling technology. The motor which is the subject of the invention is of the type comprising a rotor 2 and a stator 1 which are mounted with a predetermined eccentricity e relative to one another and forming a high-pressure chamber and a low-pressure chamber for the circul...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | The invention relates to drilling technology. The motor which is the subject of the invention is of the type comprising a rotor 2 and a stator 1 which are mounted with a predetermined eccentricity e relative to one another and forming a high-pressure chamber and a low-pressure chamber for the circulation of a fluid, and a torsion bar 6, one end of which is fixed to the rotor 2, its other end being connected rigidly to the shaft 7 of the spindle of the motor, and is characterised in that the connection of the torsion bar 6 to the rotor 2 is made higher than the contact zone of the threads of the rotor 2 and of the stator 1. The invention is used particularly for the drilling of oil and gas wells.
L'INVENTION CONCERNE LA TECHNIQUE DU FORAGE.LE MOTEUR FAISANT L'OBJET DE L'INVENTION EST DU TYPE COMPORTANT UN ROTOR 2 ET UN STATOR 1 MONTES AVEC UNE EXCENTRICITE PREDETERMINEE E L'UN PAR RAPPORT A L'AUTRE ET FORMANT UNE CHAMBRE A HAUTE PRESSION ET UNE CHAMBRE A BASSE PRESSION POUR LA CIRCULATION D'UN FLUIDE, ET UNE BARRE DE TORSION 6 DONT UN BOUT EST RENDU SOLIDAIRE DU ROTOR 2, SON AUTRE BOUT ETANT LIE RIGIDEMENT A L'ARBRE 7 DE LA BROCHE DU MOTEUR, ET EST CARACTERISE EN CE QUE LA JONCTION DE LA BARRE DE TORSION 6 AU ROTOR 2 EST REALISEE PLUS HAUT QUE LA ZONE DE CONTACT DES FILETS DU ROTOR 2 ET DU STATOR 1.L'INVENTION S'APPLIQUE NOTAMMENT AU FORAGE DE PUITS DE PETROLE ET DE GAZ. |
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