US 12,265,402 B2
Method for controlling the velocity of a pipeline pig
Robert D. Hoff, Jr., Pasadena, TX (US); Matthew J. Malone, Willis, TX (US); and Michael C. Gryder, Willis, TX (US)
Assigned to Air Liquide Large Industries U.S. LP, Houston, TX (US)
Filed by Air Liquide Large Industries U.S. LP, Houston, TX (US)
Filed on May 2, 2022, as Appl. No. 17/734,712.
Prior Publication US 2023/0350437 A1, Nov. 2, 2023
Int. Cl. G05D 13/62 (2006.01); F16L 55/38 (2006.01)
CPC G05D 13/62 (2013.01) [F16L 55/38 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for controlling the velocity of a pipeline pig,
the method comprising, maintaining the velocity of a smart pipeline pig at a predetermined velocity by regulating a pressurized gas to a predetermined volume, further comprising:
fluidically connecting a first skid to a first end of a section of pipeline to be treated, and
fluidically connecting a second skid to a second end of the section of pipe to be treated,
the first skid comprising a first temperature sensor, a first pressure sensor, a first differential pressure sensor, a first flow control valve, and a first flow computer, and the second skid comprising a second temperature sensor, a second pressure sensor, a second differential pressure sensor, a second flow control valve, and a second flow computer.