PortPositive Shifting Tool (PPST)

PP valve positions are shifted downhole using ACT’s patent pending PortPositive Shifting Tool (PPST) which guarantees positive indication of valve manipulation on every operation. .

The PPST is staged by differential pressure created in the work string by either increasing pressure or circulating fluids that expand an integral bladder; the bladder both activates retractable keys that shift the PP3OCI into a desired position and protect the shifting tools internal components from solids deposition.

The PPST automatically releases when a PP valve is shifted to the desired position. Any of the PP valves in the well can be selectively manipulated to any position, in any order, and on one trip while concurrently stimulating any interval of choice. The PPST comes complete with two fluid control valve options, the LF for low fluid level wells and the FH for full fluid wells. filtration.

PortPositive Shifting Tool LF

The PPST LF configuration is run in wells with low fluid levels and minimum reservoir pressure. A low level equalization valve added to the PPST maintains a full column of fluid in the work string.

Stopping pumping immediately depressurizes the tool while maintaining a full fluid head in the work string eliminating any wait time and associated costs.

an increase in predetermined pump rates will shear the fluid control valve from its seat to clear the work string of any restrictions. A dropped ball serves as a hydraulic secondary release.

PortPositive Shifting Tool FH

The PPST FH option is utilized on new drills or higher pressured reservoirs that can support a full column of fluid. The FH fluid control valve is normally closed; upon pressurization, the PPST’s unique internal bladder is expanded thereby triggering the shifting keys.

Over-pressurization of the work string changes the FH fluid control valve into its equalized position

Downward movement of the work string will not close the FH control valve thereby allowing, if required, full circulation at the bottom of the tool for well clean out. An upward movement of the work string changes the FH fluid control valve back to its closed position resetting the shifting tool for subsequent operations.