Flex Flow

Hydraulic Jet Pump (HJP)

The Flex Flow hydraulic jet pump (HJP) is a high volume flow rate solution that maximizes artificial lift well profitability. It is versatile and efficient for Artificial Lift oil and gas environments, able to operate in vertical, deviated, and horizontal wells. It can sustain production rates up to 100,000 BF/D and has excellent gas and solids handling capabilities. Additionally, the pump can be retrieved easily for onsite maintenance.

Flex Flow Hydraulic Jet Pump (HJP) on mobile trailer

Product Information


The Flex Flow hydraulic jet pump has a nozzle, throat, and diffuser. Fluid is pumped down through the tubing and into the nozzle at a high velocity, which creates a low-pressure differential. At the nozzle's end, pressure energy is converted to kinetic energy, resulting in a low-pressure difference. The pressure differential between the production fluid and the surrounding formation draws the fluid into the diffuser, where it is converted into low-velocity/high-pressure fluid.

Compared to a traditional lift system, many features of the hydraulic jet pump make it a better choice in challenging oilfield environments.  

  • Operates efficiently in vertical, deviated and horizontal wells
  • Easy retrievable for onsite maintenance by wireline or hydraulic flow rates
  • No workover rig required for pump change outs
  • Excellent solids handling
  • No moving parts downhole
  • Variable production rates
  • Up to 3500 BBLD for frac flow backs
  • Multiple Nozzle/Throat Combinations for adapting to changing well conditions
  • Versatile for multi well pads.
  • Easily deployed and operated in deviated wells
  • Corrosion inhibitors and well bore chemicals can be deployed with the power fluid
  • Capable of sand and solids production

Hydraulic Jet Pump


Select jet components

The hydraulic jet pump includes the following components:

  • Bottom hole assembly (BHA)
  • Housing J-Tube
  • Standing valve
  • Carrier

Depending on the depth, the expected downtime is +/- 1 hr for intervention.

The jet pump is deployed by connecting it to the BHA and dropping it down the hole. The housing and carrier will sit at the bottom with metal-to-metal contact. If you need to retrieve the carrier, you can do so by reversing flow rates to the annulus.

This will enable the carrier to pass through the tubing string and be isolated by shutting the master valve. After any inspection or replacement of throats and nozzles, the carrier can be dropped from the surface and production will resume.





Standing Valve




Required surface equipment

  • A horizontal pumping system is used to provide needed power fluid to the jet pump nozzle to create the venturi effect.
  • Holding tanks for power fluid. Additional tanks can be used to set for well production as an independent battery.
  • Three-phase separator separates power fluid from the produced fluid, allowing production to be sent to central battery.


Flex Flow Systems and Solutionsfile download
Flex Flow Hydraulic Jet Pump/Gas Lift Completion

Hydraulic jet pump/gas lift completion

Advantages to operators

A Flex Flow hydraulic jet pump/gas lift completion delivers three key advantages to operators seeking a high-performance alternative: sliding sleeves are not required, seal leakage is eliminated, and well interventions are not required to install gas lift valves after cleanup. There are eight steps needed to implement this cost-saving solution:

  1. The gas lift mandrels and hydraulic jet pump (HJP) bottomhole assembly (BHA) are run in the hole above a packer.
  2. The well is allowed to flow back naturally until loaded up. (An isolation sleeve can be installed in the BHA if required.)
  3. The isolation sleeve is removed via wireline when the well loads up.
  4. The standing valve and HJP are pumped into the well.
  5. Jet pump operations begin, and solids are unloaded and cleaned up until the gas/liquid ratio increases.
  6. The HJP and standing valve are retrieved via wireline.
  7. The isolation sleeve is set in the BHA via wireline.
  8. Gas lift operations are started up.

HJP design outperforms gas lift in a head-to-head


A customer in the Permian Basin completed a 4-well pad in hopes of putting all wells on a gas lift. Due to insufficient amounts of make up gas to power their surface infrastructure, a jet pump/GL hybrid design was deployed in one well to allow all wells to produce in the interim. Once all wells produced enough gas, the HJP would be pulled, and gas lift operations would commence.



The HJP system continued to outperform the offset GL wells in terms of overall oil production, contributing significant gas volumes to the customer’s GL surface facilities. The HJP well sustained significant oil production throughout the early stages of production before eventually being proactively pulled to allow GL operations to proceed.


Flex Flow

Rental, sale and service of horizontal pump ("H-Pump") solutions

Flex Flow (a DistributionNOW company) is a leading provider of H-pump solutions for surface applications across the energy industry. We offer rental, permanent installation, and service of high-performance horizontal pumping systems (HPS) and hydraulic jet pumps (HJP) and provide our customers with the H-pump expertise they need throughout the lifecycle of their water management applications.

Flex Flow Services offers proprietary completion, production and  water management technology designed to lower operational risk and improve  operational efficiency.