US 12,473,909 B2
Active bellows pump valve management
Timothy Holiman Hunter, Duncan, OK (US); and Justin Lee Hurst, Duncan, OK (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Dec. 28, 2023, as Appl. No. 18/398,923.
Claims priority of provisional application 63/501,995, filed on May 12, 2023.
Prior Publication US 2024/0376891 A1, Nov. 14, 2024
Int. Cl. F04B 53/10 (2006.01); E21B 43/12 (2006.01); F04B 43/08 (2006.01); F04B 51/00 (2006.01)
CPC F04B 53/10 (2013.01) [E21B 43/12 (2013.01); F04B 43/08 (2013.01); F04B 51/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for pumping treatment fluid into a well, comprising:
a source of treatment fluid;
a bellows pump comprising:
a power end;
a fluid end having a chamber; and
an expandable bellows disposed in the chamber and in fluid communication with the power end, wherein the power end is configured to reciprocally expand and contract the bellows within the chamber based on movement of drive fluid;
a suction valve in fluid communication with the chamber and the source of treatment fluid;
a discharge valve in fluid communication with the chamber and the well; and
a venting mechanism configured to vent the chamber of treatment fluid;
wherein, responsive to detection of leakage of treatment fluid back into the chamber through the discharge valve, the venting mechanism is configured to vent the chamber.