| 摘要 |
System, methods, and apparatuses for actuating a tool downhole in a wellbore are presented. In one instance, a system includes a hydraulic tool to generate a hydrostatic pressure in a first chamber using a hydraulic fluid. The hydraulic fluid the first chamber is transmitted through a fluid-flow path to a second chamber, which is at lower pressure. The fluid-flow path contains at least one fluid-flow restrictor to cause the flow of the hydraulic fluid to follow a rotational path. A frangible member may be disposed within the fluid-flow path to occlude the path until pressure of the hydraulic fluid exceeds a threshold value. |
