US 12,247,858 B2
Pumpjack production well including a cylindrical venturi fluid sensor and capacitive flow sensor
John H. Benton, Littleton, CO (US); Mark J. Ozimek, Pittsford, NY (US); Eugene Sisto, Rochester, NY (US); Ricardo P. Quintanilla, Irondequoit, NY (US); and Robert D. Valtierra, Barrington, RI (US)
Assigned to Hydroacoustics Inc., Henrietta, NY (US)
Filed by Hydroacoustics Inc., Henrietta, NY (US)
Filed on Jan. 16, 2024, as Appl. No. 18/413,225.
Application 18/413,225 is a continuation in part of application No. 17/826,715, filed on May 27, 2022, granted, now 11,906,336.
Application 17/826,715 is a continuation in part of application No. 16/270,020, filed on Feb. 7, 2019, granted, now 11,346,186.
Application 16/270,020 is a continuation in part of application No. 16/263,136, filed on Jan. 31, 2019, granted, now 10,704,938.
Claims priority of provisional application 63/312,914, filed on Feb. 23, 2022.
Claims priority of provisional application 62/659,825, filed on Apr. 19, 2018.
Claims priority of provisional application 62/627,310, filed on Feb. 7, 2018.
Claims priority of provisional application 62/624,171, filed on Jan. 31, 2018.
Prior Publication US 2024/0219214 A1, Jul. 4, 2024
Int. Cl. G01F 1/44 (2006.01); E21B 47/00 (2012.01); F04B 47/02 (2006.01); G01N 27/22 (2006.01)
CPC G01F 1/44 (2013.01) [E21B 47/00 (2013.01); F04B 47/02 (2013.01); G01N 27/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fluid sensor comprising:
a cylindrical venturi including a pair of coaxial cylinders, including a first cylinder coaxially aligned within a second cylinder, each of the first and second cylinders having an inner surface and an outer surface, the coaxial cylinders forming a gap between the outer surface of the first coaxial cylinder and the inner surface of the second coaxial cylinder, the cylindrical venturi producing a controlled thickness of non-stratified fluid flow through the gap;
a first fluid sensor located on an inlet to the cylindrical venturi to measure at least an input fluid pressure;
a second fluid sensor located just before an outlet of the cylindrical venturi to measure at least an output fluid pressure; and
a capacitive sensor integral to the cylindrical venturi for detecting the dielectric properties of the fluid flowing through the gap, the capacitive sensor including a first conductor maintained adjacent to a surface of the first cylinder and a second conductor maintained adjacent to a surface of the second cylinder, where the first conductor and the second conductor are both electrically isolated from the non-stratified fluid.