Variable Speed Rod Pump Drives: Complete control over speed and Torque

Dynamatic AT or AS Variable Speed Drives are ideal for efficiently controlling pump jacks, horizontal or progressive cavity pumps without the need for expensive filters, multi-pulse or active front ends. The Dynamatic AT or AS Variable Speed Drives can be operated as a stand-alone unit or tied into an existing pump, in conjunction with virtually any Pump Off Controller (POC), making motor speed and torque easily controlled.

Other Feature and Benefits:

• Full Compliance with IEEE519 without filters
• No PWM Output means No Motor Bearing Issues
• Proven Energy Savings
• Requires no dynamic Braking Grids Ever.    

Higher Production Rates

The Dynamatic Variable speed drive allows the pumping strokes to be slowed on either the upstroke or down-stroke and then speed up on the opposite stroke while maintaining the desired SPM. Intra-Stoke Modulation may help solve some of your toughest problems:

·         Rod Fall: Slow down-stroke with a fast upstroke to produce more fluid

·         Gas Interference: Better pump fillage with a slower down stroke

·         Fluid Pound: Less shock load on equipment by easing the plunger through incomplete pimp fillage with a slowdown stroke

·        Increase Plunger Travel: More production

Reduced Equipment Stress

The Dynamatic Variable Speed Drive can be controlled in one of three ways:

·         Torque Control: Slow down during the peak loading periods of the upstroke and down-stoke, which means a reduction in peak polished rod load and increased minimum polished rod load, lowering fear box loading and lower rod stress

·         Speed Control: Maintains a constant speed resulting in very little slip. Translating into higher surface equipment efficiencies and reduction in power consumption

·         Combination of Torque & Speed Control: Allows the use of Intra-Stoke Modulation to achieve desired stroke profile and torque limit to reduce peak amps and equipment loads.

Lower Energy Costs

Dynamatic Variable Speed Drives require less horsepower than a conventional beam pumping motor by featuring a soft start capability.

Replacing an existing motor with a Dynamatic Variable Speed Drive results in the following energy improvements

Reservoir Response Manageability

Dynamatic Variable Speed Drive allows you to optimize production quickly and easily in response to reservoir changes due to injection rates of water CO2 or steam floods. By a simple change of the speed dial, the desired pumping rate can be achieved in addition the controller can be interfaced with most pump off controllers to receive full benefits of pumping 24 hours a day with complete pump fillage.