Numerical Simulation of Fracture Width Influencing Law on Reservoir Permeability after Fracturing
Based on the fluid-solid coupling theory in porous media, a finite element simulation model for dynamic fracture creation is established and the finite element simulation program is developed, and then relevant finite element simulation is conducted on the permeability distribution under the simultaneous influence of fracture creation and pressure-released production. Research results demonstrate that the permeability distribution law after fracturing is similar for fractures with different widths, and the permeability distribution shapes in ellipse. When the maximal fracture width is greater than or equal to 6mm, the influence region on the permeability increases apparently with the increment of fracture width, so does the influence in the vicinity of the wellbore. The fracture creation and pressure-released production alternately dominates the alteration of permeability in different regions. Dynamic fracture creation plays a more important role in permeability alteration within the region less than 5m away from the wellbore axis. The larger for the fracture width, the more sensitive for the permeability alteration gradient is observed in the region in the vicinity of the wellbore. In the region 20m away from the wellbore axis, the pressure-released production affect more apparently since dynamic fracture creation has a negligible effect in the region.
Key words:Fluid-solid coupling; Permeability; Fracture; Wellbore; Simulation
 Tran, D., Nghiem, L., & Buchanan, L. (2005). An Overview of Iterative Coupling Between Geomechanical Deformation and Reservoir Flow. SPE97879.
 Belhaj, H. A., Ryan, R. J., Nouri, A. M., et al (2004). A New Coupled Fluid Flow/Stress Model for Porous Media Behavior: Numerical Modeling and Experimental Investigation. SPE90265.
 Tran, D., Settari, A., & Nghiem, L. (2004). New Iterative Coupling Between a Reservoir Simulator and a Geomechanics Model. SPE 88989.
 Onaisi, A., Samier, P., & Koutsabeloulis, N., et al (2002). Management of Stress Sensitive Reservoirs Using Two Coupled Stress-Reservoir Simulation Tools: ECL2VIS and ATH2VIS. SPE78512.
 Liu, J. J., Liu X. G., & Hu, Y. R. (2002). Study of Fluid-Solid Coupling Flow in Low Permeablable Oil Reservoir. Chinese Journal of Rock Mechanics and Engineering, 21(1), 88-92.
 Zhang, G. Q., Chen, M., & Jin, Y. (2005). Three-Dimensional Model and Procedures for Prediction of Sand Production in Gas Reservoirs. Chinese Journal of Geotechnical Engineering, 27(2), 198-201.
 Xu, X.R., & Fan, X. P. (2002). Math Simulation on Coupled Fluid Flow and Geomechanics for Multiple Phases Reservoir. Chinese Journal of Rock Mechanics and Engineering, 21(1), 93-97.
 Xue, S. F., Tong, X. H., & Yue, B. Q., et al (2000). Progress of Seepace-Rock Mass Coupling Theory and Its Application. Journal of the University of Petroleum, China(Edition of Natural Science), 24(2), 109-114.
 Liu J. J., & Feng, X. T. (2003). Advance of Studies on Thermo-Hydro-Mechanical Interaction in Oil Reservoir in China. Rock and Soil Mechanics, 24(Sup), 645-650.
 Liang, B., Sun, K. M.，& Xue Q. (2001). The Research of Fluid-Solid Coupling in the Ground Engineering. Journal of Liaoning Technical University (Natural Science), 20(2), 129-134.
- 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: 9375 Rue de Roissy Brossard, Québec, J4X 3A1, Canada
Telephone: 1-514-558 6138