Optimum Placement of Friction Reducer in Extended Reach Well


Article Preview

There are some problems such as down hole torque & drag, casing wear and so on in extended reach drilling. Therefore, friction reducers are used widely to keep the drillstring away from the cased hole in extended reach drilling. Currently, the optimum placement of friction reducers is dependent on the drillstring deflection. Friction reducers are often connected to drill pipes by tool joints, which limits their optimum placement. In addition, the placement of the first reducer is often determined by drilling engineers’ experience. The effect of friction reducer on torque & drag is assessed in this paper and the optimum placement of friction reducer is obtained to minimize the torque & drag.



Edited by:

Di Zheng, Yiqiang Wang, Yi-Min Deng, Aibing Yu and Weihua Li




L. Z. Sun and D. L. Gao, "Optimum Placement of Friction Reducer in Extended Reach Well", Applied Mechanics and Materials, Vols. 101-102, pp. 339-342, 2012

Online since:

September 2011




[1] H.C. Juvkam-Wold and J. Wu: SPE Drilling Engineering, Vol. 7 (1992) No. 4, pp.268-274.

[2] H. S. Ho: An Improved Modeling Program for Computing the Torque & drag in Directional and Deep Wells, in SPE Annual Technical Conference and Exhibition, (1988): Houston, Texas, USA.

DOI: 10.2118/18047-ms

[3] C.A. Johancsik, D.B. Friesen and R. Dawson: SPE Journal of Petroleum Technology, Vol. 36 (1984) No. 6, pp.987-992.

[4] C. Mason and D.C.K. Chen: Step Changes needed to Modernise T&D Software, in SPE/IADC Drilling Conference, (2007): Amsterdam, The Netherlands.

DOI: 10.2118/104609-ms

[5] S. Menand, et al.: Advancements in 3D Drillstring mechanics: From the Bit to the Topdrive, in IADC/SPE Drilling Conference, (2006): Miami, Florida, USA.

DOI: 10.2118/98965-ms

[6] R.F. Mitchell and R. Samuel: SPE Drilling & Completion, Vol. 24 (2009) No. 1, pp.62-71.

Fetching data from Crossref.
This may take some time to load.