What are the roles of top drive plugs in oilfield development?

Top drive plug is a commonly used tool for oil and gas well construction, which can achieve separation of underground parts, control wellhead pressure, and improve construction efficiency and quality. It plays an important role in the process of oil and gas development, and is of great significance in ensuring the safety and smooth progress of underground operations. The top drive plug is composed of two parts, upper and lower. The upper part is the top drive, which is responsible for providing a certain amount of pressure to push the plug into the wellbore. The lower part is the plug, which serves to separate the underground part. Cocks are usually made of metal materials and have strong pressure resistance and sealing performance.

Cock is a safety device typically installed in the isolation valve section below the top drive. When it is necessary to stop drilling operations, the plug will close the inlet of the wellhead to prevent oil and gas from flowing into the drill string, thereby avoiding dangerous accidents such as gas explosions and well surges at the wellhead. In addition, the plug can also prevent the backflow of wellhead fluid into the drill pipe, avoiding contamination and circulation failure of drilling fluid.

What are the roles of top drive plugs in oilfield development?

The top drive plug can be used for wellhead blowout prevention measures in drilling operations. During high-pressure drilling, high-pressure gas and well fluid often spray out of the wellhead, posing a significant safety hazard. The top drive plug can effectively control the gas and well fluid ejected from the wellhead, reduce the pressure of the blowout prevention column, and ensure the safety of drilling construction.

Secondly, the top drive plug can be used to prevent well collapse. During drilling operations, the sand and rocks in the formation may collapse, leading to wellbore instability. The top drive plug can serve as a wellbore support tool, effectively preventing wellbore collapse and ensuring smooth drilling operations by adjusting the magnitude of the support force.

In addition, the top drive plug can also be used to suspend and lower drill rods. During drilling operations, the drill pipe needs to constantly move up and down to perform drilling operations. The top drive plug can achieve safe suspension and lowering of the drill pipe by hanging the steel wire rope of the drill pipe, improving construction efficiency.

In addition, the top drive plug can also be used for power transmission during the construction process. During the drilling process, the drilling rig needs to transmit power through the top drive plug to rotate the drill rod and achieve drilling operations. The top drive plug can adjust the size of the transmitted power as needed to meet the drilling operation requirements of different formations.

The top drive plug is related to liquids or gases, so safety performance is an important consideration for evaluating its quality. A good top drive plug should have good safety performance to avoid accidents. The evaluation of security performance can be conducted through experiments, testing, and compliance with relevant security standards. The top drive plug may malfunction or require maintenance during operation. A good top drive plug should have the performance of easy maintenance and upkeep, which can be conveniently and quickly maintained and repaired to improve the reliability and service life of the equipment.

The top drive plug can also be used to seal the wellhead. Sometimes there may be detachment of the tubing string in the wellbore, and in this case, it is necessary to use a top drive plug to seal the wellhead to prevent oil and gas leakage and environmental pollution. At the same time, in certain tasks such as wellhead maintenance, logging, cementing, etc., it is also necessary to use top drive plugs to seal the wellhead to ensure smooth operation.