Sand fishing skills of logging geologists

1. Wash water along the sand surface to the bottom of the well with a drill pipe, so that the sand in the well is disturbed;

2. Under the static water level, there is also a drill pipe or rubber hose, which is used to send compressed air into the well, so that the disturbed sand is blown out of the wellhead along with the water washed into the well by the drill pipe, and the sand is washed out of the well. There is also a circulating well washing.

3. The drill pipe next to the sand surface is drilled at a place about 30 meters below the static water level. Compressed air is connected to the outlet of the air compressor and enters the drill pipe from here, which will take the sand out of the well together with the water below;

4. Slowly lower the drill pipe when working, and the top of the drill pipe will continuously spray sand until it reaches the bottom of the well. Well washing will be completed.