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介绍了采用旋转射流水力喷射钻径向水平井的原理及技术关键． 对该技术进行了室内破岩试验、地面全尺寸模拟水平钻进试验以及现场井下破岩钻井试验， 结果表明旋转射流的破岩能力完全可以满足径向水平井的要求． 现场试验的成功表明了该项技术是可行的， 并对开采我国东部油区剩余油、提高采收率有十分重要的现实意义．
The principle and technical key of radial horizontal well drilling with rotary jet hydraulic jet are introduced. The technology of indoor rock breaking test, ground full scale simulation level drilling test and field downhole rock drilling test results show that the rock breaking capacity of rotary jet can meet the requirements of radial horizontal well. The success of the field test shows that the technology is feasible and has very important practical significance for the exploitation of the remaining oil in the eastern oil region in our country and the enhancement of oil recovery.