DRILLING RODS ESPECIALLY FOR OIL OR GAS WELL HAVING A ZONE FOR RECEIVING THE CLAMPING JAWS

摘要

P THE INVENTION IS RELATING TO A DRILLING ROD 1 INTENDED TO CREATE WELLS IN THE SOIL, IN PARTICULAR FOR THE PETROLEUM AND NATURAL GAS INDUSTRY. / P P IT HAS ON ITS PERIPHERY A SURFACE OF REVOLUTION CONSISTS OF SUCCESSIONS OF HOLLOW PROFILES HAVING ON THE SIDE OF THE AXIS OF THE ROD A ROUNDED SHAPE, THE SAID SURFACE OF REVOLUTION BEING INTENDED TO SUPPORT THE INTERNAL FACES OF COMPLEMENTARY SHAPE OF THE SELF-CLASSIFIED JAWS 2 WHICH MAINTAIN THE MAINTENANCE OF THE DRILL ROD COLUMN. / P