Modelling the load transfer and tool surface for friction reduction drilling by vibrating drill-string

Aadnøy, 2001, Design of oil wells using analytical friction models, J. Petrol. Sci. Eng., 32, 53, 10.1016/S0920-4105(01)00147-4 Adewuya, 1998, A robust torque and drag analysis approach for well planning and drillstring design Clausen, 2014, Drilling with induced vibrations improves ROP and mitigates stick/slip in vertical and directional wells Dahl, 1976, Solid friction damping of mechanical vibrations, AIAA J., 14, 1675, 10.2514/3.61511 Dykstra, 1996 Gao, 2009, Limit analysis of extended reach drilling in South China Sea, Petrol. Sci., 6, 166, 10.1007/s12182-009-0026-8 Gee, 2015, Axial oscillation tool vs. Lateral vibration tools for friction reduction-what’s the best way to shake the pipe? Gillan, 2009, Applying precision drill pipe rotation and oscillation to slide drilling problems Gillan, 2011, Applying computer based precision drill pipe rotation and oscillation to automate slide drilling steering control Ho, 1988, An improved analysing program for computing the torque and drag in directional and deep wells Huang, 2002 Huang, 2012 Johancsik, 1984, Torque and drag in directional wells-prediction and measurement, J. Petrol. Technol., 36, 987, 10.2118/11380-PA Li, 1993 Liu, 2006 Maidla, 1987, Field comparison of 2D and 3D methods for the borehole friction evaluation in directional wells Maidla, 2009, Case history summary: horizontal drilling performance improvement due to torque rocking on 800 horizontal land wells drilled for unconventional gas resources McCarthy, 2009, A step change in drilling efficiency: quantifying the effects of adding an axial oscillation tool within challenging wellbore environments Newman, 2009, Modeling the affect of a down-hole Vibrator Ni, H., Wang, P., Wang, R., Huo, H.J., 2017. A method for reducing the friction between drill-string and borehole wall and a kind of split joint. Patent Publication No. CN 104314465A. Pabon, 2010, Modeling transient vibrations while drilling using a finite rigid body approach Paslay, 1994, Stress analysis of drillstrings Pawel, 2012, The effect of longitudinal tangential vibrations on friction and driving forces in sliding motion, Tribol. Int., 55, 108, 10.1016/j.triboint.2012.05.023 Pawel, 2015, Computational model for friction force estimation in sliding motion at transverse tangential vibrations of elastic contact support, Tribol. Int., 90, 455, 10.1016/j.triboint.2015.04.044 Pessier, 1992, Quantifying common drilling problems with mechanical specific energy and a bit-specific coefficient of sliding friction Rezmer-Cooper, 1999, Field data supports the use of stiffness and tortuosity in solving complex well design problems Ritto, 2013, Drill-string horizontal dynamics with uncertainty on the frictional force, J. Sound Vib., 332, 145, 10.1016/j.jsv.2012.08.007 Roberto, 2011, Successful application of new sliding technology for horizontal drilling in Saudi Arabia, SaudiAram. J. Technol., 28 Roper, W. F., Dellinger, T. B., 1983. Reduction of the frictional coefficient in a borehole by the use of vibration. Patent Publication No. US 4384625. Sheppard, 1987, Designing well paths to reduce drag and torque, SPE Drill. Eng. New Orleans, 2 Skyles, 2012, Converting static friction to kinetic friction to drill further and faster in directional holes Tolstoi, 1973, Friction regulation by perpendicular oscillation, Sov. Phys. Dokl., 17, 80 Wang, 2016, Experimental investigation of the effect of in-plane vibrations on friction for different materials, Tribol. Int., 99, 237, 10.1016/j.triboint.2016.03.021 Wicks, 2012, Modeling of axial vibrations to allow intervention in extended reach wells Yan, 1994 Yi, 2013, Progress of research on drillstring backing pressure effect in complex structure well, China Petrol. Mach., 41, 100