RESEARCH AND PROSPECT OF FRACTURING TECHNOLOGY IN SHENGLI OILFIELD

This paper introduces the new fracturing technology studied and used in Shengli oilfield in 1990’s.The fracturing fluids include gel breaking system suitable for low-temperature formation,organic borate crosslinking system for high-temperature formation,delay relief fracturing fluid gel breaking system,and diesel oil-base fracturing fluid for water-sensitive formation.The fracturing operation technology include optimum design techniques,operation monitoring techniques,fracture height control techniques,fracturing techniques for thin oil formation.According to development situation of fracturing technology at abroad in 1990’s,it also introduces the end sand out technique and multiple fracturing technique.