What are the emergency measures for top drive plugs in underground overflow accidents?

The main function of the top drive plug is to replace traditional rotary tables for drilling operations. The traditional rotary table requires manual operation of the handle to provide rotational force, which not only has high labor intensity, but also unstable operation and is prone to accidents. The top drive plug is driven by a motor to rotate the drill string, achieving automated operation, improving drilling efficiency, and reducing the risk of manual operation.

The top drive plug is usually composed of a plug head, a screw transmission system, a torque sensor, and a control system. The plug head is the core component of the top drive plug, which controls the rotation of the drill rod through the number and amplitude of expansion and contraction. The spiral transmission system transmits power to the plug head through a motor and a reducer, causing it to rotate. The torque sensor is used to monitor the torque status of the drill rod in real time, in order to adjust the working parameters of the plug head in a timely manner. The control system is responsible for controlling the working mode and various parameters of the top drive plug.

What are the emergency measures for top drive plugs in underground overflow accidents?

Inspection and maintenance of top drive plug equipment: Before underground operations, it is necessary to ensure that the top drive plug equipment is in good condition and undergo comprehensive inspection and maintenance. Ensure good sealing performance to effectively prevent overflow in case of underground overflow accidents.

Establish a sound emergency plan: Before underground operations, it is necessary to establish a sound emergency plan and provide training to all personnel involved in the operation to improve their ability to respond to underground overflow accidents. The emergency plan should include emergency notification procedures, hazard control measures, emergency evacuation routes, and other contents.

Strengthen on-site monitoring: During underground operations, it is necessary to strengthen real-time monitoring of the underground work site, including wellhead pressure and flow monitoring, underground pressure and temperature monitoring, etc. When abnormal situations are detected, immediate measures need to be taken, including stopping operations, increasing wellhead blowout prevention equipment, etc., to prevent overflow accidents from occurring.

Timely cut off the active pump supply: When an underground overflow accident occurs, the active pump supply should be immediately cut off and the control unit on the top drive plug should be closed. At the same time, it is necessary to promptly notify and coordinate relevant departments and personnel, formulate effective response measures, and control the development of accidents as soon as possible.

The top drive plug can also achieve the circulation of drilling fluid and the insertion and extraction of drilling tools. Through the control system, operators can pump drilling fluid from the bottom of the well to the surface through the top drive plug, and inject it back into the wellbore through the hydraulic system to achieve the circulation of drilling fluid. This can effectively maintain the cleanliness and cooling of the wellbore, and improve drilling efficiency. At the same time, the top drive plug can also be used to insert and retrieve drilling tools, that is, to lift and lower the drilling tools from the bottom of the well.

Top drive plugs have a wide range of applications in oil and gas well drilling operations. Top drive plug valves are suitable for various types of oil and gas wells. Different types of oil and gas wells have different requirements and difficulties in drilling operations, but the reasonable design and stable performance of top drive plugs can meet the drilling needs of various types of oil and gas wells. Secondly, the top drive plug is suitable for oil and gas wells of different depths and diameters. The top drive plug can be adjusted and modified according to actual needs to adapt to drilling operations of oil and gas wells with different depths and diameters. In addition, top drive plugs are also suitable for onshore and offshore oil and gas well drilling operations. Both onshore and offshore oil and gas wells can achieve efficient and safe drilling operations by using top drive plugs.