中文摘要：

为了降低钻井成本、减少井下事故，实现油气储量经济有效的开采，克拉玛依油田开展了表层套管钻井技术的试验研究，针对油田地质特点，立足于工艺及工具设备的自主研发，进行了套管钻井工艺及工具配套技术的研究，研制出套管悬挂器及随钻扩眼器，并在新疆准噶尔盆地红山嘴油田进行了4口井的现场试验，取得了较好的效果，平均机械钻速相对于常规钻井提高了92．2％。证明套管钻井技术经过完善后，可望达到降低钻井成本、提高效益的目的，具有广阔的发展前景。

英文摘要：

In order to reduce drilling cost, reduce downhole accidents and realize economic and effective development of oil/gas reserves, experimental research was conducted on surface easing drilling technology in Karamay Oilfield. In line with the geologic features of the oilfield and self development of process and tool equipment, research was conducted on casing drilling technology and auxiliary drilling tool techniques. The casing hanger and reamer while drilling were developed and were tested in four wells in Hongshanzui Oilfield in Junggar Basin in Xinjiang, which was very successful. The average penetration rate was increased by 92.2% compared with conventional drilling, which proves that casing drilling technology, after being improved, and achieved the goals of reducing drilling cost and improve economic benefits. So the technology has a broad development prospect.