US 12,448,881 B2
Downhole monitoring of hydraulic equipment
Steven Nicholas Hill, Houston, TX (US); Darcio Aparecido Braga, Fulshear, TX (US); Geoffrey Pinard, Missouri City, TX (US); and Mannix Flores-Cruz, Katy, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Jun. 2, 2023, as Appl. No. 18/328,050.
Application 18/328,050 is a continuation of application No. 16/672,181, filed on Nov. 1, 2019, granted, now 11,702,926.
Claims priority of provisional application 62/755,119, filed on Nov. 2, 2018.
Prior Publication US 2023/0313673 A1, Oct. 5, 2023
Int. Cl. E21B 47/06 (2012.01); E21B 34/16 (2006.01); E21B 47/07 (2012.01); E21B 47/09 (2012.01); E21B 47/117 (2012.01)
CPC E21B 47/06 (2013.01) [E21B 34/16 (2013.01); E21B 47/07 (2020.05); E21B 47/09 (2013.01); E21B 47/117 (2020.05)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
receiving a first indication of at least one of pressure or temperature in a hydraulic control line coupled to a downhole tool from a sensor disposed proximate to the downhole tool, the first indication of the at least one of the pressure or the temperature in the hydraulic control line corresponding to at least a respective one of a baseline pressure profile or a baseline temperature profile associated with normal operation of the downhole tool;
receiving a second indication of the at least one of the respective pressure or temperature in the hydraulic control line coupled to the downhole tool from the sensor;
utilizing (i) the second indication of the at least one of the respective pressure or temperature in the hydraulic control line and (ii) the at least one of the respective baseline pressure profile or the baseline temperature profile associated with the downhole tool to determine one or more operational characteristics of the downhole tool, the one or more operational characteristics of the downhole tool indicating a precipitate buildup; and
in response to the indication of the precipitate buildup, initiating one or more well intervention operations to remove the precipitate buildup.