Jet Pumps

Tech-Flo holds (under license) USA and selected foreign country patents on its line of Jet Pumps and accessories. This pump was developed to produce large volumes of sub-surface formation fluids with inclusions of moderate to high solid content. The unique patented design allows easy retrieval of the pump from deviated and horizontal wells. Retrieval of the pump from the hole for replacement of the nozzle or expansion tube is done by manipulation of the surface valves and reverse circulation of fluid with the existing production equipment (plunger pump, surface SP). No wire line, pulling unit or work over rig is required.

These features combined with the larger flow area, direct fluid flow path, and high production volumes give Tech-Flo's Jet Pump a marked advantage over existing jet pump designs and artificial lifts. The small size of the portions of the pump retrieved (referred to as "the carrier" and measuring 6.5 inches and 8.5 inches in length) makes it very attractive to clients with highly deviated or horizontal wells that require artificial lift both on land and offshore.

In our industry, downtime means lost production. With the ease of servicing the hydraulic jet pump, you can literally cut your downtime by 2/3 when comparing hydraulic lifting to mechanical lift, PCP, ESP, and gas lift. For all the previous methods of AL, a work-over rig is needed to pull the equipment out of the well before servicing the down hole equipment.

With no moving parts in the bottom hole assembly, the jet pump is simply circulated out, or fished in worst case scenario, to service and replace parts. The power fluid injection unit (PD pump, Ultra-Flo or SPS) contains all the moving parts in the system. Therefore, all maintenance can be taken care of at the surface rather than thousands of feet underground.

Technology

How does the Jet Pump Work?

The Tech-Flo Jet Pump functions by utilizing the Venturi effect. The Venturi effect (shown below) is a special case of Bernoulli's principle which states that as fluid flows through a pipe with a constriction in it (nozzle), the fluid must speed up in the restriction, reducing its pressure and producing a vacuum via the Bernoulli effect. This vacuum is what brings formation fluids into the jet pump and to the surface.