SAGD平行水平井和直井连通钻井技术  

The drilling technology of connecting the SAGD parallel horizontal well and the straight well.

作　　者：张文波[1,2] 路宗羽[2] 王朝飞[2] 吴继伟[2] 刘颖彪[2] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室 [2]中国石油新疆油田公司勘探开发研究院

出　　处：《石油机械》2011年第6期8-11,92,共4页China Petroleum Machinery

摘　　要：为了解决SAGD平行水平井在后期采油过程中遇到的采油泵下入困难、抽油杆磨损以及沉没度不够等问题,提出了SAGD平行水平井和直井连通的钻井试验方案,即下方的采油水平井与直井连通,利用直井采油,从而有利于简化有杆泵举升工艺。在试验中,采用了大尺寸套管段铣、连通井段扩孔、水平井与直井的连通以及井下砾石充填等技术,均获得圆满成功,为新疆油田浅层超稠油的有效开发提供了新的技术途径。To solve the problems of the pump running difficulty of the SAGD parallel horizontal well at the later stage of oil production,the abrasion of the sucker rod and the insufficient submergence depth,the test scheme of connecting the SAGD parallel horizontal well and the straight well was formulated.In other words,the lower oil recovery horizontal well was connected with the straight well which was then utilized to extract oil so as to facilitate the simplification of the rod pump lifting technology.The technologies of the large-size casing milling,connected well section reaming,connection of horizontal well and straight well and downhole gravel packing were adopted in the test,with a great success.The test provides a new technological orientation for the effective development of the shallow-layer super-heavy oil in Xinjiang Oilfield.

关 键 词：超稠油 SAGD 热采 平行水平井 直井 连通 

分 类 号：TE243[石油与天然气工程—油气井工程]