Research On Hailar Basin Reservoir Characterization And Development Technique

Hailar basin's reservoir characteristic and the seepage law were be researched, appraised the different area development risk, assessed the CO2 feasibility to the different sub-area, and carried out the activated water research in lab and practice, rovided the theory instruction and the technical support for the Hailar basin reasonable highly effective development.The oil and water identification charts were made by the analysis of log data, core, and comprehensive testing data of the three blocks WuDong, BeiZhong and ZhongBei in Hailar basin, the fine interpretation of single well oil thickness were made and the geological models were got by the three blocks Petrel software on the three blocks.The reservoir characteristics and seepage law of the three oil blocks WuDong, BeiZhong and ZhongBei were gained by Using scanning electron microscopy, thin section of rock, conventional mercury injection, rate-controlled mercury penetration, nuclear magnetic resonance and physical simulation experiment. The movable fluid distribution map of different levels of penetration in different blocks of the Hailar Basin was built. The combination of rate-controlled mercury penetration and nuclear magnetic resonance technique, the development risk of different block can be quickly assessed.Based on methods of slim tube displacement test, crude oil component analysis, microscopic experiment, swelling test, nuclear megnetic resonance apparatus, core displacement experiment and numerical reservoir simulation, CO2 flooding feasibility assessment of Hailar basin is accomplished. Results show that crude oil of Wudong, Beizhong and Zhongbei are suitable for CO2.Active water agent for Hailar basin is optimized and the recovery ratio can be raise 16.1% in lab experiment.In the oilfield test, the water flooding of two water wells increases 26.9%.Keywords:Hailar Basin, Reservoir Characterization, geology model, nuclear magnetic resonance, CO2 Flooding...