新疆某油田致密砾岩油水平井安全高效下套管技术

Safe and Efficient Casing Running Technology for Tight Conglomerate Oil Horizontal Well in an Oilfield in Xinjiang

为了降低超长水平段下套管的难度和风险,对钻井设计方案与现场施工方案进行了优化。建立了水平井套管微元管柱模型,优化了钻井轨道、钻井液性能、套管扶正器选型,形成了新疆某油田致密砾岩油水平井安全高效下套管技术。使用该套技术在X井中进行了钻井实践分析,结果显示,X井优化后采取三开的井身结构,建立X井的套管柱微元模型,进行大钩载荷分析,使用白油基钻井液,选取刚度较大的钻铤进行通井,并顺利完成钻完井作业,这为大规模开发新疆某油田致密砾岩油水平井提供技术支持。

In order to reduce the difficulty and risk of casing running technology in the ultra-long horizontal section,the drilling design scheme and on-site construction scheme are optimized,mainly by establishing a horizontal well casing micro-element pipe string model,optimizing the drilling trajectory,drilling fluid performance,casing righting.Through the selection of equipment,the safe and efficient casing technology for horizontal wells of tight conglomerate oil in an oilfield in Xinjiang has been formed.Using this set of technology,drilling practice analysis was carried out in Well X,and the results showed that Well X adopted a three-opening well structure after optimization,established the casing string micro-element model of Well X,carried out hook load analysis,and used white oil-based drilling fluid.,select a rigid drill collar to pass the well,and successfully complete the drilling and completion operation,which provides technical support for the large-scale development of tight conglomerate oil horizontal wells in an oilfield in Xinjiang.