摘要
螺杆马达与潜孔锤同属孔底动力机，复合起来难度较大。通过时钻具参数匹配、钻具的连接方式及水功率的消耗等问题的分析，对复合钻具研究的理论方法进行了探讨，提出了适合于科学钻探的复合钻具的两种模式。
Both the PDM and the DTH hammer belong to the downhole motor. lt's difficult to compound them. ln this paper, we analyzed the drill parameters matching, its joining way, water power consumption, etc., and researched the compound drill in- detail. Finally, we design two types of compound drill model which are suitable for the scientific drilling , which sed a good foundation for further studying them.
