US 12,292,539 B2
Spectral analysis and machine learning for determining cluster efficiency during fracking operations
Reid Daniel Thompson, Edmond, OK (US); Jeffrey Neal Rose, Boulder, CO (US); and Jonathan Swanson Rose, Boulder, CO (US)
Assigned to Momentum AI, LLC, Edmond, OK (US)
Filed by Momentum AI, LLC, Edmond, OK (US)
Filed on Jul. 12, 2023, as Appl. No. 18/350,960.
Application 18/350,960 is a continuation of application No. 17/782,125, granted, now 11,740,377, previously published as PCT/US2020/064327, filed on Dec. 10, 2020.
Claims priority of provisional application 62/945,929, filed on Dec. 10, 2019.
Claims priority of provisional application 62/945,949, filed on Dec. 10, 2019.
Claims priority of provisional application 62/945,953, filed on Dec. 10, 2019.
Claims priority of provisional application 63/058,534, filed on Jul. 30, 2020.
Claims priority of provisional application 63/058,548, filed on Jul. 30, 2020.
Claims priority of provisional application 62/945,957, filed on Dec. 10, 2019.
Prior Publication US 2023/0350091 A1, Nov. 2, 2023
Int. Cl. E21B 43/26 (2006.01); E21B 41/00 (2006.01); E21B 47/095 (2012.01); E21B 47/14 (2006.01); E21B 47/18 (2012.01); E21B 49/00 (2006.01); G01V 1/30 (2006.01); G01V 1/42 (2006.01); G01V 1/50 (2006.01); E21B 47/06 (2012.01)
CPC G01V 1/42 (2013.01) [E21B 41/00 (2013.01); E21B 43/26 (2013.01); E21B 47/095 (2020.05); E21B 47/14 (2013.01); E21B 49/00 (2013.01); G01V 1/301 (2013.01); G01V 1/50 (2013.01); E21B 47/06 (2013.01); E21B 2200/22 (2020.05); G01V 2210/43 (2013.01); G01V 2210/646 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A non-transitory, tangible computer readable storage medium, encoded with processor readable instructions to perform a method for determining cluster efficiency during hydraulic fracturing operations, the method comprising:
converting the acoustic vibrations into an electrical signal in a time domain;
recording the electrical signal to a memory;
identifying a fracture initiation from the electrical signal in the time domain via identification of two amplitude peaks occurring within a threshold period of time of each other;
measuring a time between the two amplitude peaks;
dividing the time by two to give a result;
multiplying the result by a speed of sound in the fracking fluid to give a distance between the fracture initiation and a plug at an end of a current fracking stage of the well; and
using the distance to create a cluster map of fracture initiations in the stage of the well.