Invention Grant
- Patent Title: Section mill and method for abandoning a wellbore
- Patent Title (中): 用于抛弃井眼的分段磨机和方法
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Application No.: US13047658Application Date: 2011-03-14
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Publication No.: US09022117B2Publication Date: 2015-05-05
- Inventor: Richard Segura , Thomas Bailey , David J. Brunnert , Ram K. Bansal , Andrew Antoine
- Applicant: Richard Segura , Thomas Bailey , David J. Brunnert , Ram K. Bansal , Andrew Antoine
- Applicant Address: US TX Houston
- Assignee: Weatherford Technology Holdings, LLC
- Current Assignee: Weatherford Technology Holdings, LLC
- Current Assignee Address: US TX Houston
- Agency: Patterson & Sheridan, L.L.P.
- Main IPC: E21B29/00
- IPC: E21B29/00

Abstract:
A method for milling a tubular cemented in a wellbore includes deploying a bottomhole assembly (BHA) into the wellbore through the tubular, the BHA comprising a window mill; and extending arms of the window mill and radially cutting through the tubular, thereby forming a window through the tubular, wherein a body portion of each window mill arm engages and stabilizes from an inner surface of the tubular after a blade portion of each window mill arm cuts through the tubular.
Public/Granted literature
- US20110220357A1 Section Mill and Method for Abandoning a Wellbore Public/Granted day:2011-09-15
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