US 12,013,303 B2
Apparatus and method for non-intrusive pressure measurement and early identification of solids formation using selected guided ultrasonic wave modes
Yibing Zhang, Annandale, NJ (US); Limin Song, West Windsor, NJ (US); Henry Alan Wolf, Morris Plains, NJ (US); Mark M. Disko, Glen Gardner, NJ (US); Ted A. Long, Spring, TX (US); and Brian C. Seabrook, Houston, TX (US)
Assigned to ExxonMobil Technology and Engineering Company, Spring, TX (US)
Filed by ExxonMobil Technology and Engineering Company, Spring, TX (US)
Filed on Jul. 8, 2021, as Appl. No. 17/370,414.
Claims priority of provisional application 63/126,204, filed on Dec. 16, 2020.
Claims priority of provisional application 63/058,613, filed on Jul. 30, 2020.
Prior Publication US 2022/0034739 A1, Feb. 3, 2022
Int. Cl. G01L 11/06 (2006.01); G01F 1/66 (2022.01); G01F 1/667 (2022.01); G01F 1/74 (2006.01); G01F 23/296 (2022.01); G01L 9/00 (2006.01); G01N 29/02 (2006.01); G01N 29/22 (2006.01)
CPC G01L 9/001 (2013.01) [G01F 1/66 (2013.01); G01F 1/667 (2013.01); G01F 1/74 (2013.01); G01F 23/296 (2013.01); G01N 29/02 (2013.01); G01N 29/222 (2013.01); G01N 2291/024 (2013.01); G01N 2291/02836 (2013.01); G01N 2291/2634 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method of measuring a pressure of a fluid adjacent a wall of a pipe or vessel, comprising:
attaching a transducer to the wall of the pipe or vessel;
transmitting a signal from the transducer at a characteristic frequency via a plurality of guided wave modes, the characteristic frequency being a frequency at which the plurality of guided wave modes are separated in time from each other when detected;
detecting the plurality of guided wave modes after travel in or through the wall a predetermined number of times, each of the plurality of guided wave modes having a signal receipt time; and
calculating the pressure of the fluid using the signal receipt times.