H24-16柔性多分支侧钻水平井钻井实践与认识  

Drilling practices and insights of H24-16 flexible multi-branch sidetracking horizontal well

作　　者：杜东哲 李兴[1] 魏秀乾 DU Dongzhe;LI Xing;WEI Xiuqian(The 1st Oil Production Plant of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225265,China)

机构地区：[1]中国石化江苏油田分公司采油一厂,江苏扬州225265

出　　处：《复杂油气藏》2024年第3期356-361,共6页Complex Hydrocarbon Reservoirs

摘　　要：江苏油田H24-16井存在砂体能量弱、储层薄、渗透率低及注水不见效等问题。柔性多分支侧钻水平井技术将开窗、造斜、钻进所有进尺全部集中在目标储层,可以实现分支长度与储层接触面积最大化。为挖掘该井薄差层剩余油,研制了柔性钻具、叠加式斜向器及专用打捞矛,设计了分支井眼轨道,辅以井眼轨迹控制,完成了H24-16井的柔性多分支侧钻水平井钻进。首次成功实现了江苏油田在同一油层钻出2个分支水平井眼,为高效侧钻挖潜剩余油积累了宝贵经验,具有较大的推广应用价值。The H24-16 well in the Jiangsu Oilfield faces challenges such as weak energy of the sand body,thin reservoir,low permeability,and ineffective water injection.The flexible multi-branch sidetracking horizontal well technology focuses all the advances of window cutting,deflection,and drilling on the target reservoir,thereby maximizing branch length and reservoir contact area.To exploit the remaining oil in the thin and poor layers of this well,flexible drilling tools,a stacked directional drilling tool,and a specialized fishing spear were developed,and a branch wellbore trajectory was designed and combined with wellbore trajectory control,successfully completing the flexible multi-branch sidetracking horizontal drilling of the H24-16 well.This achievement marks the first successful drilling of two branch horizontal wellbores in the same reservoir in Jiangsu Oilfield,which provides valuable experience for efficiently sidetracking and tapping into remaining oil reserves and is of significant potential for wider application.

关 键 词：多分支 侧钻水平井 柔性钻具 轨迹控制 叠加式斜向器 

分 类 号：TE242[石油与天然气工程—油气井工程]