METHODS OF DETERMINING PROPERTIES OF SUBSURFACE FORMATIONS USING LOW SALINITY WATER INJECTION

摘要

Disclosed herein are systems and methods for determining properties of subsurface formations, such as for oilfield applications. The methods can comprise calculating a Gibbs free energy of the subsurface formation using a parameter of the subsurface formation. The methods can further comprise determining the property of the subsurface formation using the Gibbs free energy of the subsurface formation. The methods can, in some examples, further comprise selecting an enhanced oil recovery technique for the subsurface formation based on the calculated property of the subsurface formation. In some examples, the enhanced oil recovery technique can comprise low salinity water injection.