US 12,404,746 B2
Flow-through pulsing assembly for use in downhole operations
Troy Lorenson, Edmonton (CA); Kevin Leroux, Beaumont (CA); Dwayne Parenteau, Edmonton (CA); and Douglas Kinsella, Sturgeon County (CA)
Assigned to IMPULSE DOWNHOLE SOLUTIONS LTD., Edmonton (CA)
Filed by IMPULSE DOWNHOLE SOLUTIONS LTD., Edmonton (CA)
Filed on Sep. 1, 2023, as Appl. No. 18/460,520.
Application 18/460,520 is a continuation of application No. 17/197,896, filed on Mar. 10, 2021, granted, now 11,788,382.
Application 17/197,896 is a continuation of application No. 16/241,029, filed on Jan. 7, 2019, granted, now 10,968,721, issued on Apr. 6, 2021.
Application 16/241,029 is a continuation of application No. PCT/CA2017/050828, filed on Jul. 7, 2017.
Claims priority of provisional application 62/359,683, filed on Jul. 7, 2016.
Prior Publication US 2023/0417126 A1, Dec. 28, 2023
Int. Cl. E21B 7/24 (2006.01); E21B 4/02 (2006.01); E21B 34/06 (2006.01); E21B 34/14 (2006.01); F03C 2/08 (2006.01); F04C 2/107 (2006.01); F04C 13/00 (2006.01); F04C 14/24 (2006.01)
CPC E21B 34/142 (2020.05) [E21B 4/02 (2013.01); E21B 34/06 (2013.01); F03C 2/08 (2013.01); F04C 2/107 (2013.01); F04C 13/008 (2013.01); F04C 14/24 (2013.01)] 17 Claims
OG exemplary drawing
 
9. A method of operating a downhole assembly, wherein the downhole assembly comprises:
a motor comprising a rotor and a stator;
a rotary component and a stationary component for generating fluid pressure pulses, the rotary component and stationary component each comprising at least one respective port, the rotary component being drivable by the rotor;
the rotary component, stationary component, and rotor each comprising a bore defining a substantially continuous passage permitting a substantially axial first route for fluid flow through the assembly, the at least one port of the rotary component substantially aligned with the bore of the rotary component and the at least one port of the stationary component substantially aligned with the bore of the stationary component;
the motor and the ports of the rotary component and stationary component providing a passage permitting a substantially axial second route for fluid flow through the assembly, wherein fluid passing through the assembly along the second route does not flow through the bore of the rotary component or the bore of the stationary component, wherein the passage through the motor is between the rotor and the stator,
the method comprising:
causing fluid to flow into the downhole assembly through the first and second routes to thereby drive the rotary component at a first rotational speed;
diverting at least some fluid flowing through the first route to the second route using a blocking implement to thereby drive the rotary component at a second rotational speed.