ASSEMPLY AND ARRANGEMENT FOR A DRILLING COLUMN COMPOSED OF SMOOTH RODS FOR A SYSTEM TO PREVENT INGRESS IN THE STAGE OF DRILLING OIL/GAS WELLS

摘要

"Assembly and arrangement for a drilling column composed of smooth rods for a system to prevent ingress in the stage of drilling oil/gas wells", in which a tubular support (1) receives a rubber ferrule (37) mounted on a block composed of sealing and locking elements. The assembly receives, at the BOP, the overshoot of the column of smooth rods (H) of oil/gas drilling equipment. The ferrule (37) will directly receive the pressure imposed by undesired gas or fluid (G) escaping in the event of an ingress not immediately detected. Under pressure, the conical wall of the ferrule (37), acting in the contrary direction, compresses the drilling column, automatically generating efficient sealing and preventing the undesired gas or fluid (G) from rising and reaching the platform (P). As it has no way of escape, the gas (G) is also automatically conveyed, by an outlet (4) perpendicular to the support (1), for burning in a burner remote from the platform (P), until preventive measures can safely be taken for controlling the ingress.