VESPER^® Linear Electric Submersible Pump System

The VESPER Linear Electric Submersible Pump (LESP) system was designed as an alternative to rod lift systems for mature, low-flow unconventional shale wells.

The VESPER Linear ESP system utilizes the same surface equipment used in conventional ESP installations. Therefore, by eliminating the need for rod pumping equipment, VESPER greatly reduces the operator’s overall surface footprint and associated site reconfiguration costs.

ZONE® Sizing Software

Our proprietary ZONE software calculates curvature data for every foot in the wellbore, allowing operators to visualize and model ESP deployment before the equipment ever reaches the site.

No Rods

Continuous operation in minimum flow rate and high-GLR well conditions

Minimal surface footprint (Same surface equipment and cable as ESPs)

VESPER 180 / 9500

180 / 3.5″ / Double Action

LPMM V450 / 15 / 690 / 38

1,850 bpd / 89.2%

355 kVa / 60 Hz / 3 phase

VESPER 240 / 7500

240 / 3.5″ / Double Action

LPMM V450 / 15 / 690 / 38

1,400 bpd / 89.4%

355 kVa / 60 Hz / 3 phase

VESPER 300 / 9840

300 / 3.5″ / Double Action

LPMM V450 / 23 / 690 / 38

2,500 bpd / 86%

520 kVa / 60 Hz / 3 phase

VESPER 400 / 6560

400 / 3.5″ / Double Action

LPMM V450 / 23 / 690 / 38

5,000 bpd / 86.4%

520 kVa / 60 Hz / 3 phase

Frequently Asked Questions (FAQs):

What makes the VESPER Linear ESP different from traditional rod lift systems?

VESPER replaces rods with a downhole linear permanent magnet motor and plunger pump, eliminating rod wear and reducing surface equipment.

What are the main components of the VESPER system?

Key parts include a universal Variable Speed Drive (VSD), submersible plunger pump with auxiliary gravity gas separator, a downhole linear permanent magnet motor (LPMM), and a sensor module powered via an ESP cable.

Will I need special surface equipment or infrastructure for a VESPER Linear ESP?

No — the VESPER uses the same surface equipment as conventional ESPs, which helps keep surface footprint and reconfiguration costs low.

How do high gas-liquid ratio (GLR) conditions affect wear and reliability, and how is Linear ESP built to cope?

High GLR can cause cavitation, gas locking, and erosion. The Linear ESP includes features like an auxiliary gravity gas separator and a plunger pump design to reduce these risks, preserving reliability under gas-rich flow.

Can the Linear ESP run continuously under low flow and high gas-liquid ratio (GLR) conditions?

Yes — it’s designed for continuous operation even with minimum flow rates and elevated gas content.

VESPER® Linear Electric Submersible Pump System

ZONE­® Sizing Software