US 12,221,841 B2
Velocity measurement of drilled cuttings on a shaker
Prashant Shekhar, Houston, TX (US); Gillies Alexander MacDonald, Shenandoah, TX (US); and Abhijit Kulkarni, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on May 19, 2022, as Appl. No. 17/748,540.
Application 17/748,540 is a division of application No. 16/415,908, filed on May 17, 2019, granted, now 11,339,618.
Claims priority of provisional application 62/680,438, filed on Jun. 4, 2018.
Prior Publication US 2022/0275694 A1, Sep. 1, 2022
Int. Cl. E21B 21/06 (2006.01); B01D 33/03 (2006.01); B01D 33/80 (2006.01); G01B 21/22 (2006.01); G01F 1/663 (2022.01); G01S 13/58 (2006.01)
CPC E21B 21/065 (2013.01) [B01D 33/0346 (2013.01); B01D 33/80 (2013.01); G01B 21/22 (2013.01); G01F 1/663 (2013.01); G01S 13/581 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a shaker screen onto which downhole materials and fluid from a borehole are to be placed, the downhole materials a product of a downhole operation;
a shaker to vibrate the shaker screen to separate the downhole materials from the fluid;
a radar to emit an electromagnetic wave onto the downhole materials on at least one of the shaker screen or a transit and to detect a reflection of the electromagnetic wave reflected off at least a portion of the downhole materials; and
a device to determine a velocity of the downhole materials advancing along at least one of the shaker screen toward a discharge end of the shaker screen or the transit, based on a Doppler frequency associated with the reflection, the device to determine that a tilt angle needs to be corrected based on correlation of the tilt angle to the velocity of the downhole materials, the device to generate an alarm when a change in the velocity is determined to exceed a velocity threshold, and the device to determine whether the change in the velocity is a result of a change in the tilt angle exceeding an error threshold or a result of an increase in an amount of the downhole materials returning from downhole.