The most important equipment of underbalanced drilling system
Two structural forms:Single rubber core and double rubber cores.
Double-rubber-core rotation assembly has an upper and lower rubber core structure respectively, and it has the features of high-pressure sealing and stable rotation.
Single-rubber-core rotation assembly has the advantage of low well-drilling cost.
|Max. static sealing pressure||3000PSI|
|Max. dynamic sealing pressure||1500PSi|
|Max. rotate speed||120RPM|
|Central tube diameter||Φ179.4mm or 192|
|Bottom Flange||13-5/8″ 5000psi BX160 or as per requirement|