小井眼深层侧钻井钻柱力学分析与应用  

Application and mechanics analysis of drill string in deep sidetrack wells with small boreholes

作　　者：杨雪山[1] 窦正道[1] 唐玉华 王媛媛[1] YANG Xueshan;DOU Zhengdao;TANG Yuhua;WANG Yuanyuan(Petroleum Engineering Technology Research Institute of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225009,China)

机构地区：[1]中国石化江苏油田分公司石油工程技术研究院,江苏扬州225009

出　　处：《复杂油气藏》2023年第4期467-471,共5页Complex Hydrocarbon Reservoirs

摘　　要：江苏油田老区挖潜不断深入,小井眼深层侧钻井增多,施工难度增大,针对深层侧钻井特点,以Cao32C井为例,分析摩阻系数、井眼轨迹、BHA底部钻具组合等因素对深层侧钻井钻具屈曲的影响,通过优化钻井液性能,调整BHA钻具组合,控制轨迹,保障了深层侧钻井顺利钻进,为今后类似井的钻井优化设计和施工提供参考。As a potential exploration in the old area of Jiangsu Oilfield continues to go deeper,the number of small boreholes in deep sidetrack drilling increases and the construction difficulty increases.Taking Cao32C well as an example,the influence of friction coefficient,borehole trajectory,the combination of bottom hole assembly(BHA),and other factors on the buckling of drilling tool in deep sidetrack wells is analyzed according to the characteristics of deep sidetrack drilling wells.The BHA assembly is adjusted to control trajectory by optimizing the drilling fluid’s performance.It ensures the smooth drilling of deep sidetrack drilling wells and provides references for the drilling optimization design and construction of similar wells in the future.

关 键 词：深层侧钻井 钻具屈曲 小井眼 钻具组合 BHA 

分 类 号：TE24[石油与天然气工程—油气井工程]