The wettability of the reservoir fluid in the pore distribution has an important influence. Wash oil process before flooding experiment conducted by using toluene is oleophilic, which is bound to change the wettability of the core: the same time, a long period of flushing water to the core may also affect the wettability of the core. In order to study these factors influence the level of the water droplets wetting angle measurement company, using the company's video ShengDing optical contact angle measurement, combined with oil washing experiments to study the process of wash oil core trends wettability experiment The results show that oil washing process and the process will affect the core flooding wettability, after washing the oil core contact angle becomes larger, but prolonged washing can basically eliminate this effect. As such. After washing the oil needs of a period of time then washed core flooding experiments, in order to eliminate the impact of the process of wash oil wettability 6. CONTA 3.0 contact angle analysis software based on WINDOWS XP and WINDOWS 7 and other operating channel drops angle measurement market, friendly interface, convenient operation, powerful function, the measured values ??are accurate: ① contact angle method to measure surface tension of solids. Active accounting functions include: θ / 2 method, the contact angle of water droplets tangent method of accounting angle measurement wholesale accounts can be active or manually (marking) accounting; at the mercy of the contact angle cf; compare multiple points of contact angle; ② a liquid method, two fluid method the appearance of free energy, the amount of liquid droplets, solid adhesion accounting; ③ dynamic contact angle analysis system, a series of photography can take the initiative to record the same time without changing the contact angle, were advancing angle, back angle, skew angle and roll angle analysis; droplets angle measurement Quote | ShengDing instrument (certified) | droplets angle measurement provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) (http://www.dgshengding.com) is Dongguan, Guangdong, dedicated instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness guidelines, and satisfy customer needs. Sheng Ding instrument in leadership with the staff warmly welcome all inquiries negotiations to create ShengDing instrument a better future. You can also access (www.dgshengding.com/supply_details_31149770.html), for more information about the company.