Injected Water Source Assessment and Reservoir Damage Study on He 86 Biolithite Reservoir

Compatibility of injected water and formation water as well as the formation damage caused by water quality are the main factors to affect the development of low permeable reservoir. Based on the five sensitive experiment study, the injected water source of He 86 biolithite reservoir is assessed by means of scaling tendency calculation and lab flow test; injected water quality control index is studied by means of membrane filtration test, core jam test and bacterial plugging test. The study results indicate that the treated waste water from Haoxian gathering station and Shinan gathering station is the ideal injection water source, the main water quality control index is given in this paper.