Abstract
Reservoir wettability is an important indicator in the study of multiphase fluids in oil reservoirs. It involves the migration of crude oil from source rocks to reservoirs, accumulation in the reservoirs, and the entire process of crude oil development. The distribution characteristics of the wettability of sandstone reservoirs can provide a certain reference for the analysis of tight sandstone oil migration and accumulation mechanisms, and the exploration and development of tight sandstone reservoirs. This paper measures the contact angle between oil and tight sandstone by using the hanging drop method. Using the KRUSS DSA100S video optical contact angle measuring instrument, 25 unwashed oil tight cores and 62 washed oil tight cores are tested, respectively. Experimental analysis shows that the contact angle of the tight sandstones of the Taiyuan Formation in the Shenfu block of the Ordos Basin ranges from 50° to 150°, and the sample contact angles are concentrated between 70° to 110°. The wettability of the reservoir is mainly of the intermediate wet type, followed by the water wet type and the oil wet type.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Earth and Environmental Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
