US 11,753,891 B2
Casing mill, method, and system
David Alexander, Houston, TX (US); Andrew Ponder, Houston, TX (US); and Knut Inge Dahlberg, Tomball, TX (US)
Assigned to BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US)
Filed by David Alexander, Houston, TX (US); Andrew Ponder, Houston, TX (US); and Knut Inge Dahlberg, Tomball, TX (US)
Filed on Oct. 12, 2021, as Appl. No. 17/499,471.
Prior Publication US 2023/0113994 A1, Apr. 13, 2023
Int. Cl. E21B 29/00 (2006.01); E21B 10/32 (2006.01)
CPC E21B 29/005 (2013.01) [E21B 10/32 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A casing mill comprising:
a first milling configuration having a first blade for milling a first casing section; and
a second milling configuration having a second blade, wherein the first blade and the second blade are longitudinally spaced apart, the second blade being an ultra-high expansion blade for milling a second casing section, the second casing section being radially outwardly disposed of the first casing section, the casing mill being configured to cut the first and second casing with the first and second milling configuration, respectively, simultaneously.