Pressure plugging is a technique used in oil and gas Wells to control wellhead pressure and seal the hole. It is often used in situations where the wellhead pressure is too high or the hole needs to be temporarily plugged to ensure stability and operability in the well.

In the process of oil and gas exploration and production, the control of wellhead pressure is very important. Excessive wellhead pressure may lead to wellhead eruption, blowout, mud control and other accidents, which seriously threaten the life stability of workers and well integrity. Therefore, it is necessary to carry out pressure control and plugging operation by some technical means.

Pressure plugging is a common technique in which the wellhead pressure is transferred to the belt by inserting a special writer into the wellbore. The rewriter is made of metal elastic material with certain bending elasticity. When the wellhead pressure is applied to the belt, it will bend and deform, and transfer the pressure to the wellbore, so as to achieve the purpose of pressure control.

The specific procedures for sealing with pressure are generally as follows:

1. Preparation: Determine the plugging point, select the appropriate writer and related materials;

2. Install the reamer: send the reamer into the wellbore through the drill pipe to ensure that it is correctly installed at the plugging point;

3. Apply pressure: Transfer the pressure to the writing tape by pumping pressure liquid or gas;

4. Monitoring pressure: Use a pressure gauge or sensor to monitor the wellhead pressure, and adjust the applied pressure according to the actual situation;

5. Borehole plugging: As needed, after the expected pressure is reached, the borehole is blocked by bending and deforming the expansion tape.

The advantage of the pressure sealing technique is its simplicity and efficiency. It can quickly control the wellhead pressure and effectively avoid the occurrence of wellhead accidents. At the same time, the tape can be used multiple times, reducing costs and environmental impact.

In addition to its application in oil and gas exploration and production, the technology of expandable zone sealing is also widely used in other fields, such as underground engineering and geothermal energy exploitation in Wells. In these fields, pressure plugging technology can also play a role in controlling pressure and blocking channels.

All in all, pressure plugging technology is an important oil and gas well technology, which controls the wellhead pressure and seals the hole through the principle of rewriter and pressure transfer, and ensures the stable operation of oil and gas Wells. This technology has a wide application prospect in oil and gas exploration and production and other fields.

Get more knowledge about What to Look for When Choosing an hot tapping machine Manufacturer please refer to aoguang sandwich valve：https://www.pipelinehottapping.com