Patent ID: 9200193
Filing Date: 2015-12-01
Classification: C08L,C09K,D21C,Y10T

Abstract:
1. An agent for oilfield applications capable of being dispersed in water, said agent comprising: nanofibrillar cellulose comprising predominantly non-parenchymal cellulose, wherein the nanofibrillar cellulose is made of cellulose raw material or cellulose pulp that is chemically premodified to make the cellulose raw material or cellulose pulp more labile, and wherein the nanofibrillar cellulose is a rheology modifying agent or a viscosifier, both giving a viscosity above 1000 Pa·s at shear rates of 1×E-4−1×E3 l/s when dispersed at concentration of 0.5 wt-% in water.