第38参第5期 2016年9月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2016)05-0573-04
DOI: 10.13639/j.odpt.2016.05.006
南堡潜山油气藏小井眼开窗侧钻技术
沈园园朱宽亮王在明余文艳中国石油算东油田钻采工艺研究院
Vol. 38 No. 5 Sept. 2016
引用格式：流园国，朱宽亮，主在明，余文艳.南堡潜山油气藏小井眼开窗侧钻技术[J].石油钻采工艺2016,38(5)：573-576.
摘要：南堡潜山油气藏固埋藏深，导致并身结构复杂、钻井周期长、成本高，为进一步提高勘探开发效益，开展了老井 0177.8mm套管开窗侧钻二开次完并试验工作。NP280C井是南堡油田第一口0177.8mm套管开案侧钻潜山井，该井开窗侧钻点深、二开次完并并眼尺寸小，龄开富侧钻作业带来诸多难题。通过优选深层套管开富侧钻工艺、小井眼扩眼技术、膨账尾管基挂器+直连套管完并方案，探索出一系列钻完并技术对策，保证了NP280C并套管开富侧钻作业的成功实施。为南堡油田深层潜山老并重复利用提供了技术支持，也为同类油气藏老并侧钻施工提供了技术借鉴。
关键词：潜山油气藏；小井眼；套管开窗；侧钻；南堡油田；NP280C井
中图分类号：TE243
文献标识码：B
Window side-tracking in slim hole well of Nanpu buried-hill hydrocarbon reservoirs
SHEN Yuanyuan, ZHU Kuanliang, WANG Zaiming, YU Wenyan
Drilling and Production Research Instifute of PefroChina Jidong Oilfield Company, Tangshan, Hebei 063000, China
Citation: HEN Yuanyuan, ZHU Kuanliang, WANG Zaiming, YU Wenyan. Window side-tracking in slim hole well of Nanpu buried-hill hydrocarbon reservoirs [ J ] . Oil Drilling & Production Technology, 2016, 38(5): 573-576.
Abstract: Nanpu buried-hill hydrocarbon reservoirs are buried deeply. This results in that wells drilled to develop these reservoirs have complicated borehole structure, longer drilling time and extremely high cost. To further enhance economic performances of oil exploration and development, tests for window side-tracking completion in existing O177.8 mm casing were conducted. Well NP280C is the first well with window side-tracking in O177.8 mm in the Nanpu Oilfield. Significant window side-tracking depth and smaller sizes in borehole of the second completion brought multiple challenges to window side-tracking operations. By selecting optimal window side-tracking processes for casing in deep formation, slim hole expansion techniques and completion with expandable tailpipe hanger+direct connection with casing, a series of drilling and completion techniques have been developed to guarantee successful implementation of casing window side-tracking in Well NP280C. These techniques may provide necessary technical support for re-vitalization of existing wells for deep buried-hill reservoirs in Nanpu Oilfield and may also provide technical references for side-tracking operation in existing wells in similar reservoirs.
Key words: buried-hill hydrocarbon reservoirs; slim hole; window in casing; side-tracking; Nanpu Oilfield; Well NP280C
南堡潜山油气藏构造面貌复杂，单井产量下降幅度较大，甚至出现停产报废井，严重影响了油田的开发效益。针对这一现状，提出了利用老并侧钻
技术挖掘剩余油的开发思路。南堡潜山井一般采用 0177.8mm生产套管，开窗侧钻存在开窗点深、对井身结构要求高、难以保证小间隙固并质量等难题【1-4]
第一作者：沈图图（1984-),2008年毕业于昆明理工大学控制理论与控制工程专业，获硕士学位，现以事钻并技术科研工作。通讯地证：
(063000)河北省唐山市箕东油回第一科研楼。电语；0315-8768020。E-mail:zcy_shenyy@petrochina.com.cn
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