Main features of the system: One Combined double deck mud cleaning unit with shale shaker and desilters One mud tanks with handrails,walkways,with compact design for small rigs. Tow centrifugal pumps, one for mixing, one for feeding to desilter conesAll the completed mud cleaning unit is mounted over a trailer within the limit of the road permisioning in Kuwait. Now all GN drilling mud system for HDD&CBM project can be made with container lifting corner, which helps to be locked on a trailer, with jack up legs, or trailer, can be moved very easily.