The current invention provides a drill pipe of standard weight with an integral wear pad. The drill pipe with integral wear pad provides increased durability while retaining the strength, flexibility, lightweight, and other performance characteristics of standard weight drill pipe. The current invention also provides methods for making a standard weight drill pipe with integral wear pad.
申请公布号
EP2686514(A4)
申请公布日期
2014.10.15
申请号
EP20110801279
申请日期
2011.03.14
申请人
ROTARY DRILLING TOOLS USA LP
发明人
AUNG, THEIN, HTUN;GARZA, RAUL, G.;ALLEN, ANDREW, J.;MOORE, R., THOMAS