EPDP™ configuration is similar to that of standard drill pipe, with the addition of three integral bladed centralisers placed on the drill pipe body at approximately eight feet from the tool joints and one in the centre. The centraliser consists of three spiral blades, each coated with a special alloy to provide a low coefficient of friction to reduce torque and casing wear.

EPDP™ was first introduced in 1995. Since then over 500 highly deviated and or ERD wells have been completed successfully using EPDP™. Having established a reputation second-to-none in the North Sea, the EPDP™ is now being used worldwide, including the east coast of Canada, Gulf of Mexico, Abu Dhabi, Egypt and Iran.

EPDP™ is easy to install and requires no additional handling as it is used in conjunction with drill pipe and or heavy weight drill pipe. It solves several problems at the same time, resulting in overall reduction in drilling time and cost.

Benefits
• No adjustment to hydraulic calculation, equal or better ECDs
• Optimises hole cleaning without additional pumping
• Eliminates differential sticking
• Reduces drag
• Virtually eliminates vibration torque
• Minimises the need for wiper trips
• Improves sliding
• Reduces casing wear
• Minimises the risk of stuck pipe