Technology and Products

POLYMER INJECTION VALVES

Low Shear Polymer Valves

Mechanical degradation of polymers is a well-known problem connected to polymer injection and enhanced oil recovery. In a polymer flooding operation there are several critical locations were mechanical degradation of the polymers can occur, were the most critical location are in the injection valve. Typhonix has together with Total developed a new low shear valve for injection of polymer in a polymer flooding operation. The development has been sponsored by Total, Eni, Statoil and the Research Council of Norway. During the development of the Low Shear Polymer Valve critical locations for polymer degradation has been identified, and it has been developed new technical solutions to overcome this problem. These new technical solutions have been implemented in a Low Shear Polymer Valve Prototype, which treats the polymer solution more carefully than state of the art injection valves. Reducing mechanical degradation of polymers during injection may increase a reservoirs oil recovery with 6-12 % compared to state of the art.   
 

Performance comparison

Results from a prototype test at Statoil’s field realistic test rig in Porsgrunn, showed that mechanical degradation of the solution can be dramatically reduced with the Low Shear Polymer valve compared to conventional valves. The prototype reduces degradation with more than 50 % compared to the standard valve that was tested in parallel.
 
degradation standard valve vs low shear polymer valve

The Low Shear Polymer Injection Valve

The Valve is designed and built with new technical solutions and with optimized geometries of the valve internals which treats the polymer solution more gently, hence reduces mechanical degradation of the solution. The new valve keeps the strain rate under its critical value, which means that the polymer chain is not broken down, and polymer degradation is minimized.
 
polymer valve typhonix

Benefits:

  • The Low Shear Polymer Valve may reduce the cost of polymer consumption for a given flooding operation by approx. 25%.
  • The valve will inject polymer solutions with a significantly higher viscosity than state of the art technology, and thus increase the oil recovery from a given reservoir with up to 10 percentage points under similar flooding operating conditions.
  • The valve can be designed for desired performance at any pressure drop and flow rate.
  • The valve can be designed for flow control over a much wider operational window than state of the art technology.
  • The valve will dramatically reduce OPEX.
  • The valve has the potential to significantly reduce the combined CAPEX for hardware and polymers.

For more information contact:

mari 2
Project Manager

MARI STOKKA

Mobile: +47 45222181
mari.stokka@typhonix.com

Visiting address offices:

Robotvegen 8
4341 Bryne

Postal address:

P.O.Box 6
N-4349 Bryne

Visiting address test center:

Robotvegen 8
4341 Bryne

Email:

Typhonix
“Theory is invaluable but nothing beats empirical knowledge”
Typhonix

Contact Typhonix:

Ole Jørgen Engelsvoll
General Manager: 
+47 934 01 294
ole.engelsvoll@typhonix.com