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Rodsim Dynamics

Performance Modeling for Rod-Pump Systems

RodSim Dynamics runs a parallel sensitivity sweep on pump fillage, pump intake pressure, and stroke rate. See how the string and unit hold as the well changes.

In Product

Charts From One Parallel Run

Dynamic Output groups rod stress, unit loading, and production across pump fillage, pump intake pressure, and stroke rate. Review the matrix, then expand any chart.

  • Full matrix at a glance

    Rod, pumping unit, and performance sections from one parallel sweep.

  • Expand any graph

    Stress, loading, and production curves across pump fillage, PIP, and SPM.

  • Operating case in context

    Your stroke rate stays highlighted on every expanded chart.

Charts fill the frame. Click to zoom or open the expanded stress chart.
Why Dynamics

When Fillage, PIP, and SPM Move, So Does Load

Dynamics runs those three axes in parallel on the well you already have in PetroBench. You see whether rods and the pumping unit stay inside limits across the sweep, not only at the design snapshot.

RodSim Dynamic Output with Full Pump and Gas Interface charts

Rod stress and max rod loading vs pump intake pressure and fill, grouped by stroke rate.

  • Load limits on the graphs

    Stress and structural loading plot against fillage and PIP for each stroke rate. Overload shows before the string is in the hole.

  • One parallel matrix

    Pump fillage, pump intake pressure, and SPM move together in one run. You review the operating window operations will run.

  • Base case from the sweep

    Pick the design that stays inside limits on the charts, then set it as the recommended design on the well.

Sensitivity Axes

Three Axes, One Parallel Sweep

Each axis is a lever engineers change on a live well. Dynamics runs them together so you see interactions, not one-off cases.

Pump Fillage
Sweep submergence and fill fraction. Fluid pound and incomplete fill show up as load spikes and lost production before you change SPM or PSN.
Pump Intake Pressure
Walk PIP down as the well pumps off. The same string can look fine at high PIP and overload the rods when you draw the fluid down.
Stroke Rate
Vary SPM across the unit envelope. Speed trades rate for stress and gas interference, so the durable design is rarely the fastest case.
Chart Matrix
Plot stress, loading, and equipment indicators across the sweep. The call is visual and reviewable, not a single green check on one case.
Pump FillagePump Intake PressureStroke RateChart Matrix
Dynamic Output

Rod, Unit, and Performance in One Run

One parallel sweep feeds three review layers. Each section groups the graphs engineers use to sign off rods, the pumping unit, and production.

Click to view full chart

Rod Stress and Loading

Bottom-minimum stress and max rod loading vs PIP and pump fill, grouped by stroke rate. See where the string leaves the safe band.

Click to view full chart

Pumping Unit Limits

Gearbox and structural loading across the same matrix. Confirm the unit stays inside rating as pump fillage and speed move, not only at the design snapshot.

Click to view full chart

Production and Efficiency

Fluid production and system efficiency vs the sweep. Tie rod and unit limits back to rate so the design you keep still produces across the window.
Workflow

How a Dynamics Run Works

Open the well, set the axes, run the matrix in parallel, expand a graph, and pick the base case that holds.

Three Steps

Start on the Well

Open the well in PetroBench with survey, fluids, and production already on the record.

See RodSim Dynamics on One of Your Wells

Bring a well you know. Run the sensitivity matrix and pick the base case from the graphs.

Live Simulation Demo
Your Well Data
Engineering Team

Have questions or need help with something else? Get in touch