长江中游岩石层首次定向钻穿越施工技术
First Pipeline Crossing with Directional Drilling Technique in Rocky Stratum of Middle Reaches of Yangtse River
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- DOI:
- 作者:
- 陈雪华, 张德桥, 康新生, 金健
CHEN Xue-hua
- 作者单位:
- 中石化华东管道工程有限公司 江苏徐州 221008
East China Pipeline Engineering Company, Ltd., SINOPEC, Xuzhou 221008,China
- 关键词:
- 管道;定向钻;穿越;长距离;岩石层
pipeline;directional drilling;crossing;long distance;rocky stratum
- 摘要:
- 结合仪征-长岭原油管道洪湖长江定向钻穿越工程实例,分析了管道定向钻穿越长距离岩石层的特点,论述了定向钻穿越岩石层的地层状况、钻具组合、控向措施、泥浆控制、钻进工艺以及导向孔钻进、扩孔、回拖阶段的应急预案,针对在钻导向孔过程中因泥浆压力高、信号线多次出现被高压泥浆冲坏、造成控向信号不稳定甚至中断的情况,对信号线的安装提出了改进措施。通过具体实施,在长江中游岩石层中首次采用水平定向钻技术穿越原油管道获得成功。
Associated with a practical example of pipeline crossing with directional drilling techniquein Yizheng-Changling crude oil pipeline,this paper analyzes the characteristics of crossing through rockystratum with directional drilling,deliberates the stratum statudrilling machine selection,drilling toolassembly,direction control,mudcontrol;drillingstages of guiding-hole drilling,aperture expandingp cesass,Wemasand back-towing.pipeline crossing with directional drilling techniquesucceeded for the first time.in rocky stratumemergency dealing scenarios at the With concrete measures adopted,theof middle reaches of Yangtse River.2006,3(3): 43-47 收稿日期:2005-8-10分类号:TE973.4作者简介:陈雪华(1969—),男,浙江武义人,1993年毕业于江汉石油学院工民建专业,高级工程师,现任华东管道工程有限公司副总工程师,仪长线洪湖长江穿越工程项目副经理、技术负责人。
