DEVICE FOR RESEARCH OF HORIZONTAL BLOWOUT WELLS Russian patent published in 1999 - IPC

FIELD: operation of oil and gas wells. SUBSTANCE: geophysical device is connected through controlled connection with packer of chemical or electrical action. Packer assembly includes fishing head with electrical contacts and destructive cover of discharge hole. Connection with packer is effected with the help of fishing connection. Controlled connection ensures multiple connection and disconnection of downhole device with packers. Withdrawal is effected with the help of fishing connections. When cover of discharge hole is destroyed by pin, pressure of packer hollow is released. Rubber member recovers initial state to provide for required clearance between wall of tubing and packer body. Well logs are registered in running-in and hoisting of logging cable. EFFECT: provision of research of horizontal blowout wells without their shutoff or suppression of blowout by fluid column. 7 dwg