... the requirement for cluster well drilling. Satisfying the requirement for TDS installation. Rig ModelZJ20DBSZJ30DBSZJ40DBSZJ50DBSZJ70DBSNominal drilling depth, ... or 5.57.5910.5Clearance height under rotary beam, m 2.6 or 3. ... drilling rig,rig, drilling equipment drill rig,drilling machine ,oil rig,oil equipment, rig equipment, tiger rig,low-temperature rig, land rigdrilling rig,drill rig ,Drilling Rig ...