发明名称 INTEGRAL WEAR PAD AND METHOD
摘要 <p>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.</p>
申请公布号 CA2811482(A1) 申请公布日期 2012.01.05
申请号 CA20112811482 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
分类号 E21B17/10 主分类号 E21B17/10
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