Experimental Research on Placement Law of Injected Agent in General Water Shutoff for Horizontal Wells
In order to research the placement law of injected agent in general water shutoff for horizontal wells, injection and water plugging experiments were carried out based on horizontal well models. Normal model was modified to research placement of gel quantitatively. Plane heterogeneity and well trajectory changes were also considered in the models. Experiments results indicated that injected agent was not uniformly placed along the horizontal direction in general injection. The agent was more likely to enter the zone near heel end because of pressure drop along horizontal well. High permeable area and lower well part were both favorable factors for blocking agent’s entrance. The final placement was determined by the game between the factors and pressure drop. When the two factors existed at heel end, the non-uniform placement would be even intensified, and the differences among each part would enlarge. Conversely, when the two factors existed at toe end, it was beneficial to make the placement of injected agent more uniform. The performances of general water shutoff were influenced by the placement law of injected agent. The breakthrough water will be better plugged if more of injected agent went to objective position, which induced a better oil production after the treatment. Therefore, researching and making use of the placement law of injected agent is beneficial to improve the performance of general water shutoff in application.
Key words: Water plugging experiment; Water shutoff; Horizontal wells
 Wan, R. P. (1997). Recovery technologies of horizontal wells in different reservoirs of China. Beijing: Petroleum Industry Press.
 Hadia, N. J., Chaudhari, L, S., Mitra, S, K., Vinjamur, M., & Singh, R. (2008). Effect of scaling parameters on waterflood performance with horizontal and vertical well. Energy Fuels, 22, 402-409.
 Zhou, D. Y., Jiang, T. W., Zhao, J. Z., & Feng, J. L. (2004). The uncertainty and production of critical output of horizontal wells in bottom water reservoirs. Oil Drilling & Production Technology, 28, 33-36.
 Zhang, H. L., Wang, Z. L., & Wang, J. (2011). Watering crest along a horizontal well in heterogeneous reservoir with bottom water. Petroleum Science and Technology, 23, 2471-2479.
 He, F. G., Li, L. C., Yue, X. A., Zheng, J. P., & Jiang, J. L. (2011). The influence of horizontal well trajectory on recovery effectiveness of bottom water oil reservoir. Journal of Southwest Petroleum University (Science & Technology), 31, 105-109.
 Permadi, P., & Lee, R. L. (1995). Behavior of Water Cresting Under Horizontal Wells. SPE Annual Technical Conference & Exhibition, SPE Paper 30743.
 Sanosh, V., Mitra, S, K., Vinjamur, M., & Singh, R. (2007). Experimental and numerical investigations of waterflood profiles wiht different well configurations. Energy Fuels, 21, 3353-3359.
 Wei, F. L., Liu, Y. Z., Li, Y. K., Tang, X. F., & Xiong, C. M. (2007). Developing trend and current situation of water plugging technology for slotted pipe horizontal wells. Oil Drilling & Production Technology, 29, 40-43.
 Zhu, H. J., Xu, Z. D., Luo, J, H., Dai, G. H., & Wang, D. C. (2004). Technologies of water and gas shuttoff in horizontal wells: an overview. Oilfield Chemistry, 21, 85-90.
 Arangath, R., & Mkpasi, E. E. (2002). Water shut-off treatments in open hole horizontal wells completed with slotted liners. SPE/ICoTA Coiled Tubing Conference and Exhibition.
 Bond, J., Blount, C. G., Davies, S. N., Keese, R. F., Lai, Q. J., & Loveland, K. R. (1997). Novel approaches to profile modification in horizontal slotted liners at Prudhoe Bay, Alaska. SPE Annual Technical Conference and Exhibition.
 Zhu, H. J., Long, Q. L., Luo, J, H., Xiong, C. M., Jiang, H. J., & Bai, F. L. (2009). Experimental study on water shutoff of sulfonated larch tannin extract to aqueous layer in the fracture-cavity karst reservoir. Acta Petrolei Sinica, 30, 565-568.
 Coste, J. P., Zaitoun, A., & Bai, B. J. (2000). IFP self selective agents for water shutoff. Petroleum Exploration and Development, 27, 93-97.
 Zaitoun, A., Bertin, H., & Lasseux, D. (1998). Two-phase property modifications by polymer adsorption. SPE/DOE Improved Oil Recovery Symposium, SPE Paper 39631.
 Dai, C. L., Zhao, F. L., Li, Y. L., Feng, D. C., & Ren, S. H. (2005). Control technology for bottom water coning in horizontal well of offshore oilfield. Acta Petrolei Sinica, 26, 69-72.
 He, L., Dai, C. L., Hou, Y., Liu, C. H., & Zhao, F. L. (2009). Research on water shutoff technology in the western zone of South China Sea oilfield. Oilfield Chemistry, 26, 145-147.
 Wang, X. H., Zhao, L. L., Kong, M. W., & Ma, L. H. (2010). Application of temporary-blocking agent for water plugging in horizontal wells. Journal of Oil and Gas Technology, 32, 352-354.
 Francesco, V., Martin, B., Alan, M., & Tony, M. G. (2005). Applicability of water shutoff treatment for horizontal wells in heavy-oil reservoirs. SPE Europec/EAGE Annual Conference and Exhibition.
 Bi, Y. G., Zhang, M., Ma, G. Z., Liu, Z. J., & He, E. (2011). Research on water breakthrough characteristics and influence factors of horizontal well in complex faultblock reservoirs. Fault-Block Oil & Gas Field, 18, 79-82.
- There are currently no refbacks.
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”.
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:
email@example.com; firstname.lastname@example.org; email@example.com
Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures
Address: 730, 77e AV, Laval, Quebec, H7V 4A8, Canada
Telephone: 1-514-558 6138