Detecting and drilling in critical inclination window in slant wells by means of a two phase liquid-solid CFD model and experimental study
Keywords:CFD, cutting transport, liquid-solid, flow loop, critical inclination window, slant wells
Build and hold from vertical section form slant wells. The hole cleaning phenomena in this wells can cause of many problems that increased the operational costs. CFD simulation and experimental flow loops are good devices for studying the effect of operational parameters on cutting transport across the annulus. In this study tried to build a liquid-solid CFD model that verified with experimental data. The effect of cutting size, drill pipe rotation speed, flow rate, drilling fluid type and rate of penetration were discussed. The results indicated that there is a specific critical inclination window for slant wells and the driller must avoid to drill in it. The inclinations between 30 to 55 degrees form this window. If there is no way to drill in this period, the operator must increase the flow rate as possible and tried to reduce the size of the cuttings with different ways. Increasing the drilling fluid viscosity also improved the hole cleaning efficiency.
• Manjula, E. V. P. J., Ariyaratne, W. H., Ratnayake, C., & Melaaen, M. C. (2017). A review of CFD modelling studies on pneumatic conveying and challenges in modelling offshore drill cuttings transport. Powder Technology, 305, 782-793.
• Mohammadsalehi, M., & Malekzadeh, N. (2011, January). Optimization of hole cleaning and cutting removal in vertical, deviated and horizontal wells. In SPE Asia Pacific Oil and Gas Conference and Exhibition. Society of Petroleum Engineers.
• Cayeux, E., Leulseged, A., Kluge, R., & Haga, J. (2016, March). Use of a Transient Cuttings Transport Model in the Planning, Monitoring and Post Analysis of Complex Drilling Operations in the North Sea. In IADC/SPE Drilling Conference and Exhibition. Society of Petroleum Engineers.
• Han, S. M., Woo, N. S., & Kim, Y. J. (2016). A Study of the Particle Transport in the Non-Newtonian Fluid with Inclined Annulus. Asia-pacific Journal of Modeling and Simulation for Mechanical System Design and Analysis Vol. 1, No. 1 (2016), pp. 23-28.
• Ayeni, O. O., Wu, C. L., Nandakumar, K., & Joshi, J. B. (2016). Development and validation of a new drag law using mechanical energy balance approach for DEM–CFD simulation of gas–solid fluidized bed. Chemical Engineering Journal, 302, 395-405.
• Mohammadzadeh, K., Hashemabadi, S. H., & Akbari, S. (2016). CFD simulation of viscosity modifier effect on cutting transport by oil based drilling fluid in wellbore. Journal of Natural Gas Science and Engineering, 29, 355-364.
• Amanna, B., & Movaghar, M. R. K. (2016). Cuttings transport behavior in directional drilling using computational fluid dynamics (CFD). Journal of Natural Gas Science and Engineering, 34, 670-679.
• Kamyab, M., & Rasouli, V. (2016). Experimental and numerical simulation of cuttings transportation in coiled tubing drilling. Journal of Natural Gas Science and Engineering, 29, 284-302.
• Falcone, G. (2009). Flow Loops for Validating and Testing Multiphase Flow Meters. Developments in Petroleum Science, 54, 295-302.
• Egenti, N. B. (2014). Understanding Drill-cuttings Transportation in Deviated and Horizontal Wells. Paper presented at the SPE-172835-MS, Lagos, Nigeria.
• Nazari, T., Hareland, G., & Azar, J. J. (2010, January). Review of cuttings transport in directional well drilling: systematic approach. In SPE Western Regional Meeting. Society of Petroleum Engineers.
• Han, S. M., Hwang, Y. K., Woo, N. S., & Kim, Y. J. (2010). Solid–liquid hydrodynamics in a slim hole drilling annulus. Journal of Petroleum Science and Engineering, 70(3), 308-319.
• Sayindla, S., Lund, B., Ytrehus, J. D., & Saasen, A. (2017, March). CFD Modelling of Observed Cuttings Transport in Oil-Based and Water-Based Drilling Fluids. In SPE/IADC Drilling Conference and Exhibition. Society of Petroleum Engineers.
• Carden, R.S., Grace, R. D. (2007). HORIZONTAL AND DIRECTIONAL DRILLING. PETROSKILLS, LLC. TULSA, OKLAHOMA.
• Allahvirdizadeh, P., Kuru, E., & Parlaktuna, M. (2016). Experimental investigation of solids transport in horizontal concentric annuli using water and drag reducing polymer-based fluids. Journal of Natural Gas Science and Engineering, 35, 1070-1078.
• Tripathy, A., Bagchi, S., Biswal, S. K., & Meikap, B. C. (2017). Study of particle hydrodynamics and misplacement in liquid–solid fluidized bed separator. Chemical Engineering Research and Design, 117, 520-532.
• Sutkar, V. S., Deen, N. G., & Kuipers, J. A. M. (2013). Spout fluidized beds: Recent advances in experimental and numerical studies. Chemical engineering science, 86, 124-136.
• Limtrakul, S., Chen, J., Ramachandran, P. A., & Duduković, M. P. (2005). Solids motion and holdup profiles in liquid fluidized beds. Chemical Engineering Science, 60(7), 1889-1900.
• Skalle, P. (2010). Drilling fluid engineering. Bookboon
• Bourgoyne, A. T., Millheim, K. K., Chenevert, M. E., & Young, F. S. (1991). Applied drilling engineering (Vol. 2, pp. 137-144). Richardson, TX: Society of Petroleum Engineers.
• Peker, S. M., & Helvaci, S. S. (2011). Solid-liquid two phase flow. Elsevier.