摘要
S98井是塔河油田塔里木乡构造上的一口探井 ,在盐层施工中 ,由于扩眼发生了井下事故 ,决定侧钻。在深井盐层中进行侧钻困难较大 ,膏盐层的蠕动、缩径、垮塌等不稳定性是侧钻的最大障碍。通过精心组织施工 ,合理选择各项参数 ,吸取钻盐层的成功经验 ,较为顺利地完成了侧钻任务。实现了揭示盐下构造设计目的 。
The well S98,an exploration well,lies in the Tarim country structure of the TaHe oilfield.During the drilling in the salt bed,downhole accident take place because of reaming.So we decide to sidetrack drilling.It's difficult to sidetrack in the deep well in salt bed,especially the creeping of the gypsum-salt bed,hole diameter reduction and collapsion etc.are the biggest barriers for sidetrack drilling.Through choosing the reasonable parameters,and drawing the successful drilling experiences in salt bed,the sidetracking operation of well S98 is finished.The object of revealing the sub-salt structure is fulfilled.It provides the reference for drilling the salt bed in future.
出处
《钻采工艺》
CAS
2003年第5期14-15,共2页
Drilling & Production Technology
