Coiled Tubing Drilling Equipment 74 COILED TUBING DRILLING EQUIPMENT The growth in Coiled Tubing Drilling (CTD) applications has allowed National Oilwell to lead in the design, engineering, and manufacturing of several purpose built CTD equipment packages. These units are used world-wide and are specifically designed to meet the individual requirements of the end user.  All equipment including CTD equipment is designed to meet or exceed the requirements of the recognized Quality Standards and Industry Regulatory Bodies (API, DNV, ISO-9001, Lloyds). Coiled tubing drilling barge Coiled tubing drilling tower Land Based Coiled Tubing Drilling System