Wellbore plug isolation system and method

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United States of America Patent

PATENT NO 9062543
SERIAL NO

14459042

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Abstract

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A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The WST is positioned along with the RSM at a desired wellbore location. After the WST sets and seals the RSM, a conforming seating surface (CSS) is formed in the RSM. The CSS is shaped to engage/receive RPE deployed into the wellbore casing. The engaged/seated RPE isolates heel ward and toe ward fluid communication of the RSM to create a fracture zone. The RPE's are removed or left behind prior to initiating well production without the need for a milling procedure. A large ID RSM diminishes flow constriction during oil production.

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Patent Owner(s)

Patent OwnerAddress
WELLS FARGO BANK NATIONAL ASSOCIATION1525 WEST W T HARRIS BLVD CHARLOTTE NC 28262

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clark, Nathan G Mansfield, US 13 267
George, Kevin R Cleburne, US 50 1300
Hardesty, John T Weatherford, US 81 904
Rollins, James A Lipan, US 33 590
Snider, Philip Martin Tomball, US 12 171
Wesson, David S Fort Worth, US 83 2292
Wroblicky, Michael D Waetherford, US 14 116

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