Safety drilling control device

Abstract

The invention discloses a safety drilling control device. The safety drilling control device is characterized in that safety bolts are powerfully adsorbed on a lift sub when the safety bolts are inserted into lugs; even if the lift sub is overturned, the lift sub does not fall off in the air; when a worker slightly presses down, a magnetic induction switch and an induction magnet get close and a signal is output to a transmission element; the signal is transmitted to a special controller to judge: 1, if the two bolts are inserted in place, an explosion-proof solenoid valve is switched on; and 2, if any one of the two bolts is not inserted in place, the signal is output to control the explosion-proof solenoid valve to be switched off, so that a gas path in a low-speed clutch gas path pipeline is blocked and a single suspension ring accident is prevented from occurring. After suspension rings move downward to a platform, the worker can pull out the safety bolts in a slightly forceful manner; and when the adsorption force of the safety bolts drives an annular magnet sleeve part to move downward, the safety bolts are pulled out. A waterproof protective sleeve and an outer wall of an electronic element mounting hole are in thread connection, and a pin rod with a limiting lug boss and the electronic element mounting hole are in the thread connection.

Description

technical field [0001] The present invention relates to two major potential safety hazards when lifting and lowering pipe strings in oil drilling and workover: one is a single lifting ring accident, and the other is that the elevator falls from the air and hits the drill floor, which injures personnel or equipment, etc., and there is a huge risk Security risks. Background technique [0002] There are two major safety hazards when pulling out pipe strings in oil drilling and workover: one is that when pulling out the drill, three people are required to cooperate closely. If any one of the two bolts is not matched well and is not inserted into the elevator lug, the driller will pull out the drill, which will cause a single ring accident and cause heavy personnel and property losses. The second is that during the lowering process, the ropes and some objects hanging in the derrick space may be touched due to swinging and other reasons, or the elevators hanging in the suspension...

AI Technical Summary

Problems solved by technology

[0002] There are two major safety hazards when pulling out pipe strings in oil drilling and workover: one is that when pulling out the drill, three people are required to cooperate closely. If any one of the two pins is not properly fitted and is not inserted into the elevator lug, the driller pulls out the drill. At this time, a single lifting ring accident will occur, resulting in heavy personnel and property losses.

The second is that during the lowering process, the ropes and some objects hanging in the derrick space may be touched due to swinging and other reasons, or the elevators hanging in the suspension rings may turn over when suddenly braking. It will fall out of the hole of the elevator lug, and the lifting lugs on both sides of the elevator will be disengaged from the lifting ring, causing the elevator to fall from the air and hit the drill floor, injuring personnel or equipment, etc., posing a great safety hazard

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