US 11,939,854 B2
Methods for detection and mitigation of well screen out
Tony Yeung, Houston, TX (US); Ricardo Rodriguez-Ramon, Houston, TX (US); and Joseph Foster, Houston, TX (US)
Assigned to BJ Energy Solutions, LLC, The Woodlands, TX (US)
Filed by BJ Energy Solutions, LLC, Houston, TX (US)
Filed on Nov. 21, 2022, as Appl. No. 17/991,007.
Application 17/991,007 is a continuation of application No. 17/355,920, filed on Jun. 23, 2021, granted, now 11,566,506.
Application 17/355,920 is a continuation of application No. 17/303,841, filed on Jun. 9, 2021, granted, now 11,208,881, issued on Dec. 28, 2021.
Application 17/303,841 is a continuation of application No. 17/182,408, filed on Feb. 23, 2021, granted, now 11,066,915, issued on Jul. 20, 2021.
Claims priority of provisional application 62/705,050, filed on Jun. 9, 2020.
Prior Publication US 2023/0086213 A1, Mar. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 43/267 (2006.01); E21B 21/08 (2006.01); E21B 43/12 (2006.01); E21B 43/26 (2006.01); G08B 21/18 (2006.01)
CPC E21B 43/267 (2013.01) [E21B 21/08 (2013.01); E21B 43/12 (2013.01); E21B 43/26 (2013.01); E21B 43/2607 (2020.05); G08B 21/182 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of detecting and mitigating well screen out at a fracturing well site, the method comprising:
operating one or more fracturing pumps to pump fluid to a wellhead at the fracturing well site;
sensing a fluid pressure of the fluid when supplied to the wellhead with one or more sensors;
measuring the fluid pressure of the fluid supplied to the wellhead; and
in response to:
(i) a fluid pressure increase rate of the fluid supplied to the wellhead being greater than a preselected increase rate, and
(ii) the fluid pressure of the fluid when supplied to the wellhead being greater than a preselected percentage of a selected maximum wellhead pressure:
decreasing incrementally, by a controller in communication with the one or more fracturing pumps and one or more blenders, a discharge rate of the one or more fracturing pumps and a flow rate of the fluid, the decreasing incrementally a discharge rate of the one or more fracturing pumps and a flow rate of the fluid including stopping delivery of the fluid prior to decreasing the discharge rate of the one or more fracturing pumps.