1. Support Method

Supporting method involves setting up supports outside the pipeline and plugging leaks using tools and sealing washers. This technique is suitable for sealing larger pipelines and is used when it's not possible to secure them in place.

2. Pressure Top Sealing Method

A method for fixing a screw directly or indirectly to the pipeline to block leaks in equipment and pipeline is called the top-pressure method. This method is suitable for plugging leaks at sand holes, small holes, and other leak points on medium and low-pressure pipelines.

3. Clamp method

The method of stopping leaks by securing a sealing washer in place with a clamp (also known as a clamp) is called the clamp method.

4. Pressure Cap Method

A method of sealing leaks by tightening a sealing washer and cover over the inner or outer surface of a hole with bolts, known as the cover gasket method. This technique is suitable for low-pressure situations and for plugging leaks in pipes that are easy to operate.