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

摘要

“SET AND ARRANGEMENT FOR DRILLING STRING COMPOSED BY SMOOTH RODS FOR SECURITY SYSTEM AGAINST THE INFLUX IN OIL/GAS WELLS DRILLING STAGE”, where a tubular support (1) receives rubber tip (37) mounted on block composed of sealing and locking elements. The set receives, in the BOP, the overtaking of the string of smooth rods (H) of an oil/gas drilling equipment. The tip (37) will receive directly the pressure imposed by unwanted gas or fluid (G) escaping in case of influx not detected immediately. Under pressure, the tip conical wall (37) in counteraction compresses the drill string automatically causing efficient sealing, preventing unwanted gas or fluid (G) to rise and reach the platform (P). Also automatically, gas (G), by not to having where to escape, is directed by a perpendicular nozzle (4) of the support (1) for burning in remote burner far from the platform (P) until taking measures, safely, to control the influx.

主权项

1) “SET AND ARRANGEMENT FOR DRILLING STRING COMPOSED BY SMOOTH RODS” formed from tubular support (1) having ring base (2) with oval radial holes (3), projecting a perpendicular nozzle (4) and flange (5) and holes characterized by, at its upper edge the tubular support (1) forming a collar (6) with chamfered lower edge (7) and recess (8) in its internal face, incorporating immediately below said collar (6) a flap (9) with vertical pins (10) of a pair of clamps terminals articulation (11) with lock (12) and internal channel (13) delimiting the upper chamfered walls (14) and the lower chamfered walls (15), being the support (1) completed by a hollow shaft (16) with smooth upper (17) and threaded lower ends (18), external intermediate stop (19) of two opposed bearings seating (20) receivers of respective covers (21), said shaft (16) mounted with its bearings (20) and housed in a glove (22) with a chamfered upper edge (24) external collar (23), lower cavity (25) for the sealing ring, recess (26) on its inner face and also the upper nozzles (27) and lower nozzles (28) with holes (29) that receives locking screws (30) on the corresponding holes (31) of respective ring caps (32), opposed, introduced both by the threaded end (18) and the smooth end (17) of the shaft (16), being each of the ring caps (32) provided with external grooves (33) receivers of sealing ring, and internal stopper (34) housing separator (35) for retaining rings (36).