• Long stroke for higher production, and lower speed. Beneficial for rod compression, harmonics, pump efficiency.
• Much smaller footprint compared to a conventional beam pump with no concrete slab needed.
• Set up in 2 hours instead of days for a conventional beam pump.
• Eliminate stuffing box leaks, has an internal sealing system.

The first concern most people have is caused by hoses and threaded connections. Hoses often last 3-5 years, sometimes much longer, depending on temperature). Threaded connections we provide almost a combination of SAE -O-Ring & JIC hydraulic fittings (similar to power steering & brake lines on cars). Many people selling hydraulic equipment use NPT tapered pipe threads, these are big mistake, as they are deform when used and literally create point. We sometimes use them to connect to threaded pipe but this is typically a last resort.

the second concern is connection of the cylinder to the well head. We use API threaded or API flange connections, and in some cases (our secondary stuffing box) we use double O-Ring seals and the design closely mimics API 16A Drill-Through equipment (e.g. Otis Unions). We seldom experience any leaks but when it happens, the cause is almost always dirt / contamination to the API threads, or a damaged API ring.

This is a somewhat lengthy conversation (one question triggers a series of responsive questions), but maybe best summarized as follows:

For shallower wells, our efficiency is very similar to a beam unit.

The deeper the well, the less efficient we become due to lack of a counterbalance.

What efficiencies we lose from lack of counterbalance, we often recover via longer stroke lengths.

We are similar in consumption to beam units, up to about 4000 or 5000 feet MPD/TVD (depending on rod string weight vs. plunger load).  After which, our efficiency slowly diminish due to expending energy to lift a steel sucker rod string.

Dual-well power units / installations often recover some or all of the efficiency loss when compared to beam units but to a limited extent.

PCP’s are often the more efficient than either HRP's or Beam Pumping Units.

Ambient Air temperature limit is ~ 125F (52C).

Produced fluid temperature limit is ~185F (85C) at surface.

Higher ambient & surface fluid temperatures are possible but require special accomodations. Contact your distributor for more information.

PR HP is the empirical physics calculation of what it takes to move the polished rod. In other words, “In a perfect world...” or in a vacuum.

Our Hydraulic HP, which is the HP it takes in the real world with friction, rod stretch, pump slippage, all the inefficiencies included, without a counterbalance.

A Beam unit’s HP can be the same as HRP Hydraulic HP, but is often more efficient due to a portion of the weight being reduced by a counterbalance.

Beam Pumping Unit HP & HRP HP are similar in shallow(er) wells, as rod string weight vs. plunger load ratio reduces the need & therefore, the benefit of a counter-balanced beam unit.

Moreover, long stroke units provide an improved Stroke-Versus-Stretch ratio. In some cases, HRP HP may be more efficienct than beam units.

HRPI is API Q1 & ISO 9001:2015 certified.

Our Quality Management System is custom-tailored for both products & services we provide.

ISO & API accredited certification bodies are are globally recognized & help ensure HRPI remains responsive to change and assure Quality Products meet or exceed both customer expectations & Global Standards.

Sound levels vary based on Horse Power, Hydraulic Pump Displacement  & Pump Type.

Sound levels range between 60dB, up to 100+ dB, without any sound attenuation accomodations.

We do offer an optional sound-attenuation enclosure for highly sensitive environments.

We’ve deployed in high-wind environments, with no reported issues. We use an optional tripod stabilizer to limit sway or harmonics.

Optional external stuffing boxes deploy a Cone Packing stack with a void between the cylinder and the stuffing box.

Fluid collected in this void can be configured to either:

A. Returned to the power unit;  

B. Inject into flow line / tubing.

C. Recover oil to a secondary container (e.g. drum)

Auxiliary ports are available for monitoring and can be configured to shut the power unit down upon errant conditions.

Actuation is only during the upstroke. Gravity provides the down stroke, velocity is controlled using a valves located on the hydraulic power unit (no electronics or additional sensing hoses @ the well head).

Maintenance interval / seal life varies based on well head temperatures, rod speed, fluid composition, gas, solids, chemical compatibility, etc. 

Cylinder seals typically last 3+ years between failures. Most cylinders are rebuilt (re-dressed) when BHP's (bottom hole pumps) fail.

We also offer an optional external High Pressure Stuffing Box to increase fluid isolation for harsh applications & improve cylinder seal run life.

Three levels of safety are deployed:

1. Mechanical Pressure Safety Valve (non-fatal fault)

2. Maximum System Pressure (fatal fault, unit shutdown)

Maximum Permissible Up-Stroke Pressure (PPRL Max limit), which interrupts the upstroke (non-fatal)

Yes, Customization is how we've survived 34 years. If you can imagine it, we can most likely build it. It's possible we may have already designed & built a solution similar to your unique requirements.

Power Units monitor hydraulic pressure at the power unit and plot pressure (Y scale = Polished Rod Load) versus time (X scale = position).

Yes, our controller is SCADA ready out of the box. Custom mapping & features are available upon request.

Cellular modems and remote access are included, you need provide only a SIM card & data services.  We've successully enabled remote access via stallites, Spread Spectrum long range & mesh network repeater radio networks as well as fixed LAN/WAN ISP network configrations.