第38参第6期 2016年11月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2016)060752-05
DOI: 10.13639/j.odpt.2016.06.007
南海西部高温高压探井随钻扩目
眼技术
李中，李炎军杨立平”杨玉豪吴江，谢露
Vol.38 No.6 Nov.2016
1.中海石油（中国)有限公司湛江分公司：2.中海油能源发展股份有限公司；3.中海油能源发展股份有限公司工程技术公司湛江分公
弓用格式：李中，季灵军，杨文平，杨玉蒙，吴江，谢露，南海西部高温高压探井随钻扩眼技术J」，石油钻采工艺，2016，38(6):752-754
摘要：南海西部海城莺-琼金地地温梯度大、压力系数高，在高温高压井段作业时往往需要维持较高的钻井液密度，导致安全密度富口窄，钻并过程中易发生漏、喷同存的复杂情况。为提高高温高压并的钻并安全和效率，采用随钻扩眼技术，增加套管层次，进而为钻井作业提供良好安全窗口。以写-琼盒地某高温高压并钻并难点入手，分新了针对日标区城钻并难点的相应对策，并从扩眼技术适应性、扩眼工具选型、扩眼工具与领眼钻头尺寸优选、扩眼钻具振动分析、水力分析、现场技术关键等方面对随钻扩眼工艺进行分析，形成了相应的随钻扩眼工艺技术
关键词：海洋钻井；非常规井身结构；随钻扩眼；南海西部；高温高压
中图分类号：TE52
文献标识码：B
RWD technology forHTHPexploration wells in western South China Sea
LI Zhong , LI Yanjun', YANG Liping , YANG Yuhao', WU Jiang , XIE Lu 1. CVOOC China Limited Zhanjiang Branch, Zhanjiang 524057, Guangdong, China; 2. CNOOC Energy Techology & Services Limeted, Bejing 100027, China;
3. Zhanjiang Bnanch, CNOOC EnerTech-Drilling & Prodarction Co., Zhanjian 524057, Garangdong, Chind
Citation: LI Zhong, LI Yanjun, YANG Liping, YANG Yuhao, WU Jiang, XIE Lu. RWD technology for HTHP exploration wells in western South China Sea [ J J - Oil Drilling & Production Technology, 2016, 38(6): 751-755.
Abstraet: The Ying-Qiong Basin in the western sea area of South China Sea is characterized by high geothermal gradient and high sa oeaeaaaoaas o i ee s naoaoanssa fluid results in narrow safety density window, and coexistence of leakage and blowout in the process of well drilling. In order to increasc drilling safety and efficiency of HTHP wells, reaming while drilling (RWD) technology is used to improve casing program so as to pro-vide the favorable safety window for drilling operation. In this paper, one HTHP well in the Ying-Qiong Basin was taken as an example Its drilling difficulties and the corresponding countermeasures were investigated. Then, the RWD process was analyzed from the aspects of technical suitability, reaming tool selection, size selection of reaming tools and pilot bits, vibration analysis and hydraulic analysis of reaming tool, and key factors of field technologies. And thus, the RWD technology is developed
Key words: offshore drilling; unconventional casing program; Reaming While Drilling (RWD); Western South China Sea; high temperature and high pressure
与常规扩眼相比，随钻扩眼能在套管下部扩眼
形成大于上层套管内径的并眼，实现非常规并身结构，增加套管层次，提供良好的安全窗口，是解决高
温高压、深水等窄压力窗口钻井问题的一项有效技术措施。目前，国内对随钻扩眼技术的研究较多，但现有公开文献中多对相关配套工具发展情况和力学
第一作者：李中(1972-)教投级高级工程师。1994年毕业于江汉石沟学院，现从事海洋沟气钻完并的研究和管理工作。通讯地址：(524057）
广东省港江市坡头区22号信猫。电语：0759-3900608。E-mail:lizhong@enooc.com.cn
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