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Method and tool for perforating a wellbore casing in a formation using a sand jet, and using such tool to further frac the formation
Method and tool for perforating a wellbore casing in a formation using a sand jet, and using such tool to further frac the formation
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机译:用于使用喷砂器在地层中对井眼套管进行穿孔的方法和工具,并使用该工具进一步压裂地层
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摘要
A method employs sand jetting to perforate a wellbore casing at various locations using sandjetting, to further flush/clean the wellbore in the region of the tool, and to further frac the formation, all without removing the tool from the wellbore. An uphole and downhole packer is provided, uphole of which a sand jet port 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 to set and unset the tool in the wellbore for the fracking operation. A slidable sleeve is utilized to open and close the jet port. A piston member is provided to set the uphole packer. A selectively openable and closeable bypass-port is provided to assist in moving the tool uphole during the perforating and fracking process.
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