Oil well under water drilling device with pressure

• Main Authors: BAOQUAN SUN, GONGMING JI, SHEXIA DONG
• Format: Patent
• Language: English
• Published: 10.11.2004
• Edition: 7
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to an underwater pressure perforation device for oil well, comprising a gate valve, a drilling mechanism arranged on the perforation device and a chucking mechanism connected with the other end of the gate valve and arranged on the external wall of the oil well casing pipe, wherein, the chucking mechanism comprises a sleeve clipped on the oil well casing wall, a square block, sealed tube and pressure cap positioned on the open end of the sleeve, the drilling mechanism comprises a drilling head and a drilling rod pass through the gate valve and sealed tube, a power connector connected with the other end of the drilling rod, a top connector connected with the drilling rod and the gate valve, a fixed rod, a plurality of steel balls, a lock ball groove, a sealing part and groove, a lock sleeve, a spacer sleeve, a pressure ring, a fixed sleeve and a bearing are arranged between the top connector and power connector. The utility model creates a particular tool for controlling the operation of ocean underwater oil well, creates a convenient method for rapid closing the oil well and stopping the fluid contamination in the ocean spilled from the oil well and is extensively applied for the ocean oil recovery.