PREPARATION AND LABORATORY EVALUATION OF ORGANIC BORATE CROSSLINKER FOR POLYHYDRIC ALCOHOL FRACTURING FLUID
Haiyan Lv · Journal of Shaanxi University of Science & Technology · 2010
An organic borate crosslinker for the polyhydric alcohol fracturing fluid system is put forward in this paper.The variables components and factors are investigated and an optimal synthetic technology of the organic borate crosslinker is estabilished.The composition of organic borate crosslinker in quality percentage is 20% borate,13.33% ligand,80 ℃ and 4.0 h.The polyhydric alcohol fracturing fluid crosslinked by the organic borate crosslinker has suitable delayed gelation performance,good temperature resistance and shear stability.The fracturing fluid has good performance,such as broking completely,low residue content and little reservior damage,which is suitable for the ultra-low-permeability oil and gas reservior.