How to determine the quality and performance of the top drive plug valve?

The main function of the top drive plug is to control the wellhead pressure and ensure the safety of the wellhead. In conventional drilling operations, controlling wellhead pressure is very important. If the wellhead pressure is too high, it may lead to wellhead overflow or blowout accidents, while if the wellhead pressure is too low, it may cause wellbore collapse or drilling fluid tank leakage and other problems. Therefore, by using the top drive plug, it is possible to control the wellhead pressure and ensure the safety and stability of the wellhead.

The use of top drive plugs can bring multiple benefits. It can improve drilling efficiency. Due to the use of top drive, the drill rod can rotate more stably, reducing the occurrence of stuck and broken drill bits. In addition, the hydraulic system of the top drive can achieve rapid advancement and retraction, improving the feed speed and operational efficiency of the drill rod. The top drive plug can improve drilling safety. The rotational force and thrust of the top drive can be adjusted according to the needs of drilling to avoid damage to the drilling tool caused by excessive or insufficient rotational force and thrust. And the plug can prevent the entry of wellhead fluid, reducing the occurrence of dangerous accidents such as wellhead explosions and well surges.

How to determine the quality and performance of the top drive plug valve?

1、 Structural design: The structural design of the top drive plug directly affects its quality and performance. A good structural design should take into account the usage environment, usage conditions, and required functions. For example, the top drive plug should be made of corrosion-resistant and wear-resistant materials to ensure its long-term effectiveness.

2、 Sealing performance: The top drive plug is used to control the fluid in the pipeline, which is related to the sealing performance of the pipeline. A good top drive plug should have good sealing performance, which can effectively prevent fluid leakage. The evaluation of sealing performance can be completed through experiments or verification. Common methods include water injection test, airtightness test, etc.

3、 Control accuracy: The control accuracy of the top drive plug is one of the important indicators of its performance reliability. A top drive plug with high control accuracy can accurately adjust flow and pressure, and maintain stable control effect. For the evaluation of control accuracy, actual working condition simulation and data analysis can be carried out.

4、 Service life: The service life of the top drive plug is an important indicator for evaluating its quality. A good top drive plug should have a long service life and be able to work in harsh working environments for a long time without damage or failure. The assessment of service life can be completed through experiments and simulation tests, such as vibration, impact, wear resistance, and other tests.

The top drive plug is composed of upper and lower parts. The upper part is the top plate, which usually has multiple connection ports for connecting equipment such as drill collars, gas separators, and vent valves. The lower part is the valve body, and there are pistons and sealing rings inside, which can adjust the wellhead pressure during drilling. Top drive plug is a very important drilling equipment, which can not only control the wellhead pressure, but also be used to seal the wellhead. It can improve the safety and efficiency of drilling operations, ensuring the normal progress of drilling operations.

The top drive plug can protect the drilling tool and drill pipe from erosion and impact by the wellhead fluid. During the drilling process, there may be high-pressure and high-temperature oil and gas in the formation, and the corrosiveness and impact force of the wellhead fluid can cause damage to the drilling tools and drill rods. The use of top drive plugs can isolate drilling tools and drill rods, protect them from fluid corrosion and impact, and extend their service life.