Clean Nitrogen Foam Fracturing Fluid Research And Applications

Low-permeable oil and gas resources in China's occupies an important position. Steady development of China's oil industry in future is of great significance. However, with its exploration and Development steady deepening, high quality hydrocarbon reservoir are running low. Formation Pressure of oil-field developed is lower and lower. Problem of hydraulic fracturing is more and more. Such as filter, formation damage, friction, clean-up and so on. Because foam fracture fluid is a series of advantage, for example, character of lower formation damage, rapid clean-up, better carry and lower filter. So especially suitable for low pressure, low permeability, water sensitivity formation fracturing. In recent years, it's a key point of research development for many service company.Based on large amounts of literature investigation, expounds the foam fracture fluid technology. A clean nitrogen foam fracture fluid has researched, The fracturing fluid has good stability and rheology, Carrying capacity is strong, Anti-bacteria erosion, Without residue in breaked fluid, Conductivity damage is low,Lower friction and so on. Four well test operation has go on to dry up formation in wen23 gas field, effect of increasing is Achieved.