US 12,221,856 B2
Pressure regulation mechanism for downhole well tools
Jalpan P. Dave, Singapore (SG); Shanu Thottungal Eldho, Singapore (SG); Ryan T. Humphrey, Singapore (SG); and Sooriyah Thangarajoo, Singapore (SG)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on May 8, 2023, as Appl. No. 18/313,811.
Prior Publication US 2024/0376797 A1, Nov. 14, 2024
Int. Cl. E21B 34/10 (2006.01); E21B 33/128 (2006.01); G05D 16/00 (2006.01); G05D 16/04 (2006.01)
CPC E21B 34/10 (2013.01) [E21B 33/1285 (2013.01); G05D 16/028 (2019.01); G05D 16/0404 (2019.01)] 17 Claims
OG exemplary drawing
 
1. A well tool, comprising:
a cylinder;
a setting chamber formed, in part, by the cylinder; and
a first flow metering device and a second flow metering device installed in the cylinder, the first flow metering device and the second flow metering device configured to regulate an internal chamber pressure inside the setting chamber to reduce a collapse pressure at the cylinder, wherein the first flow metering device is configured to allow an external pressure greater than a first pressure threshold to enter the setting chamber during a hydrocarbon recovery operation using the well tool, the external pressure being external to the well tool, and the second flow metering device is configured to allow the internal chamber pressure greater than a second pressure threshold to exit the setting chamber after stopping the hydrocarbon recovery operation.