METHOD AND TOOL FOR PERFORATING A WELLBORE CASING

专利名称：METHOD AND TOOL FOR PERFORATING A

WELLBORE CASING IN A FORMATION USINGA SAND JET, AND USING SUCH TOOL TOFURTHER FRAC THE FORMATION

发明人：William JANI申请号：US15621724申请日：20170613

公开号：US20170275972A1公开日：20170928

专利附图：

摘要：A tool and method employing sand jetting to perforate a wellbore casing at

various locations using sandjetting, and to further flush/clean the wellbore in the regionof the tool, and to further frac the formation, all without having to remove the tool fromthe wellbore. An uphole and downhole packer is provided, uphole of which a sand jetport is provided for jetting a fluid stream containing sand. Locking jaw members and a‘j’ slot subassembly, downhole of both the jet port and frac port are together used toset and unset the tool in the wellbore for the fracking operation. A slidable sleeve isutilized to open and close the jet port, and a piston member is further provided to setthe upper packer member. A bypass port, which is selectively openable and closeable, isprovided to assist in moving the tool uphole during the perforating and fracking process.

申请人：William JANI

地址：Calgary CA

国籍：CA

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