Schlumberger

Industry Article: Less is More

A new approach to hydraulic fracturing using relative permeability modifiers increases oil production while holding water in check

A new approach to hydraulic fracturing using relative permeability modifiers
Publication: E&P
Publication Date: 03/01/2011

A viscous disproportionate permeability modifier (VDPM) has been developed to address issues associated with high water cut. The VDPM has been used successfully in a number of fracturing applications, including as a pre-pad to limit water production when fracturing layered reservoirs with widely different water saturations or formations with a known oil/water contact. With 83 MMbbl of original oil in place, Colombia’s Caballos formation’s two producing units are in a faulted anticline structural trap. Historically, fracturing has not been considered to enhance production due to the proximity of the water contact. However, with production declining and water cut increasing, a five-well pilot project was performed using VDPM as a pre-pad. The use of VDPM fluid in fracturing treatments dramatically improved production results in each case by decreasing the effective permeability to water production in the fracture faces.



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