A Comparative Experimental Study of Sweep Efficiency in Naturally Fractured Reservoirs

James J. Sheng, Faizan Nasir

Abstract


In this paper the performance of gel and polymer in fractured core plugs in laboratory is compared. The experimental results show that in a naturally fractured reservoir, the best solution to improve oil recovery should be such that the gel particle sizes are larger than the pore sizes, and the solution viscosity becomes very high after the particles contact with water. If the fracture is wide, the improvement of sweep efficiency by a polymer solution is limited because the polymer solution could flow through the fracture channel. The results in this paper provide us with guidelines to select proper polymers to improve sweep efficiency.
Key words: Sweep efficiency; Naturally fractured reservoirs; Polymer solution; Oil recovery

Keywords


Sweep efficiency; Naturally fractured reservoirs; Polymer solution; Oil recovery

Full Text:

PDF

References


[1] Chang, H. L., Zhang, Z. Q., Wang, Q. M., Xu, Z. S., Guo, Z. D., Sun, H. Q., Cao, X. L., & Xiao, Q. (2006). Advances in Polymer Flooding and Alkaline/Surfactant/Polymer Processes as Developed and Applied in the People’s Republic of China. JPT, 2, 84–89.

[2] Seright, R. S. (2006). Discussion of SPE 89175. JPT, 5, 80.

[3] Shi, D. H., Xu, H.X., & Pu, C. S. (2011). Deep Profile Control Using Cross-Linked Polymer in the Xi-Fong Field. Oil and Gas surface Engineering, 30(1), 30-32.

[4] Fathi-Najafabadi, N., Delshad, M., Sepehrnoori, K., Nguyen, Q. P., & Zhang, J. Y. (2008). Chemical Flooding of Fractured Carbonates Using Wettability Modifiers. Paper SPE 113369 Presented at the SPE/DOE Symposium on Improved Oil Recovery, 20-23 April, Tulsa, OK.

[5] ASTM. (2009). Standard Test for Compressive Strength of Cylindrical Concrete Specimens. Designation: C39/C39M – 09a, ASTM International, Conshohocken, PA.

[6] Nasir, F. (2012). A Comparative Experimental Study for Improvement of Sweep Efficiency in Naturally Fractured Reservoirs (Master’s thesis). Texas Tech University, Lubbock, TX.




DOI: http://dx.doi.org/10.3968%2Fj.aped.1925543820130602.1726

Refbacks

  • There are currently no refbacks.


Reminder

How to do online submission to another Journal?

If you have already registered in Journal A, then how can you submit another article to Journal B? It takes two steps to make it happen:

1. Register yourself in Journal B as an Author

Find the journal you want to submit to in CATEGORIES, click on “VIEW JOURNAL”, “Online Submissions”, “GO TO LOGIN” and “Edit My Profile”. Check “Author” on the “Edit Profile” page, then “Save”.

2. Submission

Go to “User Home”, and click on “Author” under the name of Journal B. You may start a New Submission by clicking on “CLICK HERE”.

We only use three mailboxes as follows to deal with issues about paper acceptance, payment and submission of electronic versions of our journals to databases:
caooc@hotmail.com; aped@cscanada.net; aped@cscanada.org

Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures
Address: 730, 77e AV, Laval, Quebec, H7V 4A8, Canada

Telephone: 1-514-558 6138
Http://www.cscanada.net
Http://www.cscanada.org
E-mail:office@cscanada.net  office@cscanada.org