Downhole compressor system increases gas production

May 5, 2020
Upwing Energy has won the Offshore Technology Conference’s Spotlight on New Technology Award for its Subsurface Compressor System.

Offshore staff

CERRITOS, CaliforniaUpwing Energy has won the OTC Spotlight on New Technology Award for its Subsurface Compressor System (SCS).

The SCS is the only downhole turbomachinery that can maximize gas and condensate production, recoverable reserves, gas-in-place recovery efficiency, and liquid unloading at the same time, the company claimed. All these benefits can be realized in any type of formation and wellbore geometry in both onshore and offshore environments.

The system increases gas production and recoverable reserves by decreasing bottomhole flowing pressure and causing higher reservoir drawdown. It also carries liquids to the surface by creating higher gas velocities throughout the vertical and horizontal wellbores and prevents vapor condensation by increasing the temperature of the gas when exiting the compressor.

The subsurface compressor consists of two main components - a high-speed hermetically sealed permanent magnet motor with magnetic bearings and a hybrid wet gas compressor. These two components are coupled by a magnetic coupling that conveys torque from the hermetically sealed motor to the compressor with no mechanical shaft or seals, so there is no need for a motor protector to isolate the motor from downhole fluids.

The SCS’s “protector-less” architecture is said to provide a reliable rotating solution for lower total cost of ownership and can also be applied to oil recovery. The topsides variable frequency drive controls the motor at high speeds without any speed sensors. The system also reduces intervention costs, the company said.