探矿工程-岩土钻掘工程Issue(3)：18-20,24,4.
旋冲钻井技术在内蒙古意1井的应用
Application of Rotary-percussion Drilling Technology in Yi1 Well of Inner Mongolia
摘要
Abstract
In order to improve the ROP of lower section under 3000m depth in Yi1 well of Mongolia, hydro-efflux hammer rotary-percussion drilling technology was used.According to the characteristics of the formation lithology, the impact power and the frequency were selected by the hammer rig testing to determine the rotary-percussion drilling parameters.The hydro-efflux hammer was used in the section of 3675m to 3817m with the cone bit.With the reasonable hydraulic parame-ters and performance parameters of the hammer, the desired high ROP was achieved.The net drilling time of the hammer was 185h with total footage of 142m;under the conditions of the similar stratum and the bit, the footage of 2 rounds rotary-percussion drilling was 10m more than that of previous 4 rounds rotary drilling, and the ROP was increased by 42%, the rotary-percussion drilling technology became a new technical means for Baiyinchagan area.关键词
旋冲钻井/射流冲击器/提速Key words
rotary-percussion drilling technology/hydro-efflux hammer/ROP improving分类
地质学引用本文复制引用
索忠伟,尹慧博,张海平,白彬珍,陈卓..旋冲钻井技术在内蒙古意1井的应用[J].探矿工程-岩土钻掘工程,2014,(3):18-20,24,4.基金项目
国家“863”计划项目“高效破岩冲击器的研制及旋冲破岩工艺技术研究” （）
