US 12,228,640 B2
Detection of pipe features with pressure pulses
Zhijie Sun, Houston, TX (US); Yang Yu, Singapore (SG); David Bennett, Houston, TX (US); and Robert P. Darbe, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jul. 12, 2023, as Appl. No. 18/351,044.
Prior Publication US 2025/0020804 A1, Jan. 16, 2025
Int. Cl. G01S 15/10 (2006.01); F17D 5/00 (2006.01); F17D 5/06 (2006.01); G01S 15/88 (2006.01)
CPC G01S 15/102 (2013.01) [F17D 5/00 (2013.01); F17D 5/06 (2013.01); G01S 15/88 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
generating, via a pulse generator, a first pressure pulse in a fluid in a pipe;
detecting, via a transducer, a first reflected pressure pulse based on the first pressure pulse, wherein at least a portion of the first pressure pulse is reflected by a pipe feature to generate the first reflected pressure pulse;
generating, with the pulse generator, a second pressure pulse at a later time relative to generating the first pressure pulse, wherein timing of generating of the second pressure pulse is such that the second pressure pulse is superposed, at least in part, with the first reflected pressure pulse to generate a reinforced reflected pressure pulse, and wherein an amplitude of the reinforced reflected pressure pulse is greater than an amplitude of the first pressure pulse;
detecting, via the transducer, a second reflected pressure pulse, wherein at least a portion of the reinforced reflected pressure pulse is reflected by the pipe feature to generate the second reflected pressure pulse; and
detecting the pipe feature based on the second reflected pressure pulse.