1. Abduvayt, P., Manabe, R., Watanabe, T., Arihara, N., 2004. Analysis of oil–water flow tests in horizontal, hilly-terrain and vertical pipes. In: Proc. Annual SPE Tech. Conf., Houston, Texas (SPE 90096), in CD ROM.
2. Alkaya, B., 2000. Oil–water flow patterns and pressure gradients in slightly inclined pipes. M.S. Thesis, The University of Tulsa, USA.
3. Cox, A.L., 1985. A study of horizontal and downhill two-phase oil–water flow. M.S. Thesis, University of Texas at Austin, USA.
4. Ding, Z.X., Ullah, K., Huang, Y., 1994. A comparison of predictive oil/water holdup models for production log interpretation in vertical and deviated wellbores. In: Proc. SPWLA 35th Annual Logging Symposium, Tulsa, OK, USA, June 19–22, pp. 1–12.
5. Flores, J.G., Chen, X.T., Sarica, C., Brill, J.P., 1997. Characterization of oil–water flow patterns in vertical and deviated wells. Paper SPE 38810 presented at 1997 SPE Annual Technical Conference and Exhibition, San Antonio, TX, USA, October 5–8, pp. 601–610.