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用喷射钻进法“钻”超小曲率半径水平井获进展众所周知，常用的钻井方法为回转钻进和冲击钻进。近期发展的井下的动力钻进（用涡轮钻和螺杆钻进行）．亦属回转钻进。目前国内外进行的喷射钻井，也是在用牙轮钻头进行回转钻进时．利用强大的泥浆射流冲击井底岩屑、使其迅速...
Advances in drilling “ultra-small radius of curvature horizontal wells using jet drilling” are well known. Commonly used drilling methods are rotary drilling and impact drilling. Recent developments in downhole power drilling (with turbine and screw drills). Also a rotary drilling. Jet drilling is currently carried out at home and abroad, but also in the use of roller bit rotary drilling. Use of powerful mud jet impact bottom rock cuttings to make it quickly ...