Advancing Pump Technology Corp.

SAGD RGP

Thermal | SAGD

There is an increasing evolution of artificial lift technology for SAGD or thermal heavy oil recovery in the Industry in an effort to improve production run time and reduce capital and operating costs. APT has combined resources in an effort to design, develop and provide an innovative alternative solution for harsh extreme temperature environments suitable for SAGD applications.

The Rotary Gear Pump System design concept differs from the more common ESP used for artificial lift in that the RGP is a robust high volume low speed positive displacement gear pump that has the ability to operate throughout ranges untouched with centrifugal pumps, delivers optimal production and does so in a cost-effective manner. Although the RGP connects directly to an ESP production string by replacing only the centrifugal pump component, the operation and functional specifications are significantly different.

Although the RGP utilizes the latest technological advances in high temperature motors, protectors, gas handling equipment and power cables developed by the major ESP vendors, there is a growing demand for advanced thermal pump development and performance.

Listed are the operating features and advantages of the SAGD gear pump over the current thermal centrifugal / progressing cavity (PCP) pumps:

Features /Specifications

ESP Pumps

PCP Pumps

RGP Pump

Gas Handling Capacity (stages)

Up to 20%

Poor

50%+

Operating Speed

3500 RPM @ 60 Hz

400 RPM+

0 – 3500 RPM+

Pump Efficiency

 60%

30 - 40%

> 80%

Upthrust Downthrust

Yes

No

No

Pump "Driver" Options

Induction / PMM

PMM / Rods

Induction/
PMM/Rods

Hydraulic

Max Operating Range

10,000 bbls/d

2500 bbls/d

10,000 bbls/d

Required Minimum Casing Size

7"

7"

5-½"

Pump Specifications (equivalent rate)

(a) Pump Length (ft)
(b) Pump OD (in)
(c) Temperature Range (°F)
(d) Sand Concentration (%)

10 -15 ft

5.38"

250°C (485°F)

0 – 3%

25 – 30 ft

5.50"

250°C (485°F)

Trace amounts

5 – 10 ft

4.00”, 6.00”

250°C (485°F)

0 – 3%