发明名称 Hydrocarbon well and technique for perforating casing toe
摘要 A method and apparatus for completing a horizontal hydrocarbon well includes cementing a casing string in the well and creating passages through the casing string adjacent float equipment near the casing toe by slowly dissolving a plug with completion fluid used to pump cement into an annulus between the casing string and bore hole. By the time the cement sets up, the plug dissolves leaving passages in the casing string through which a first frac job may be pumped or which allows pumping perforating equipment into the horizontal leg without requiring a coiled tubing run. The technique can also be used in vertical wells to save a perforating gun run.
申请公布号 US2012318507(A1) 申请公布日期 2012.12.20
申请号 US201113134819 申请日期 2011.06.17
申请人 FRAZIER W. LYNN 发明人 FRAZIER W. LYNN
分类号 E21B43/11;E21B17/14;E21B34/00 主分类号 E21B43/11
代理机构 代理人
主权项
地址