US 12,071,839 B2
Fracture system and method
Jason Fuxa, Houston, TX (US); and Wilfred Provost, Tomball, TX (US)
Assigned to BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on Sep. 9, 2022, as Appl. No. 17/941,064.
Prior Publication US 2024/0084682 A1, Mar. 14, 2024
Int. Cl. E21B 43/26 (2006.01); E21B 34/06 (2006.01); E21B 34/14 (2006.01); E21B 44/00 (2006.01)
CPC E21B 43/26 (2013.01) [E21B 34/14 (2013.01); E21B 2200/06 (2020.05)] 23 Claims
OG exemplary drawing
 
1. A fracture tool comprising:
a housing having a fracture port and an inflow port longitudinally axially spaced from the fracture port;
a fracture sleeve disposed adjacent the housing and movable relative to the housing between a first position where the sleeve blocks the port and a second position where the sleeve unblocks the port, the fracture sleeve including an extension;
a biaser operably connected between the housing and the fracture sleeve, the biaser biasing the fracture sleeve to the first position;
a valve sleeve disposed in the housing, the valve sleeve shiftable by the extension to a position where the inflow port is open; and
a valve disposed fluidically between the inflow port and an environment outside of the tool, the valve being in an unarmed condition in which the valve does not react to pressure until being shifted to an armed condition by the valve sleeve where the valve is responsive to pressure.