精选优质文档-倾情为你奉上钻井英语缩写AbbreviationDP Drill pipe 钻杆HWDP heavy weight drill pipe 加重钻杆DC drill collar 钻铤STB stabilizer 钻杆扶正器SMDC short magnetic drill collar 短无磁钻铤PDM positive displacement motor 螺杆NMDC nonmagnetic drill collar 无磁钻铤（钻具）BOP blowout preventer 封井器CSC casing 套管JNT joint 单根XO cross-over 配合接头IF internal flush 内平FH full hole 贯眼REG regular 正规IU internal upset 内加厚EU external upset 外加厚IEU internal & external upset 内外加厚OH open hole 裸眼WOB weight on bit 钻
