Abstract
This paper presents a laboratory-scale experimental investigation on the performance of horizontal-vertical well configurations in conjunction with oil recovery by alkaline flooding. Emphasis focuses on the effect of the horizontal well position and length on oil recovery. The effect of three alkali solution types, [i.e. sodium carbonate (Na2CO3), sodium ortho-silicate (Na4SiO4), and sodium hydroxide (NaOH)] on cumulative oil yield, in both secondary and tertiary recovery processes is also investigated, using a linear model and various horizontal-vertical schemes.It was found that displacing Safaniya crude oil by a 1% NaOH solution results in higher oil recoveries in both linear and horizontal-vertical schemes. Moreover, the highest oil recovery through horizontal-vertical schemes was obtained by positioning the horizontal well perpendicular to the line connecting both vertical producing wells with a length that does not extend to the reservoir boundary. It was also found that the oil displacement efficiency in the tertiary process is much higher than that encountered in the secondary process. Also, increasing horizontal well length in a limited reservoir area does not increase the cumulative oil recovery.
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: Journal of King Saud University - Engineering Sciences
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.
