FY350 deep water well drilling rig sold to Thailand with one set Zhigao air compressor, such FY drilling rig is designed for DTH drilling, so called pneumatic drilling or air drilling, it should work with air compressor, then the air drive the drilling hammer to keep punching the rock layer by some special drilling bits, so it is very efficient to break rocks. Normally, it can drill more than 100m depth, even all are hard rock layer. This is a good option to deal with deep water well drilling. No need use plenty of water. Very efficient in drilling.