Hydraulic Coiled Tubing Tractor Technology Extends the Accessibility of Coiled Tubing in Horizontal Wells, Allowing Better Well Intervention – Case Study
Downloads
Recent advances in drilling technology have resulted in longer horizontal wells and have increased the complexity of well completion; the well intervention is becoming more challenging. Conventional techniques are no more adequate to access in long openhole horizontal sections when using coiled tubing to perform intervention works such as stimulations, logging and zonal isolation. This essay was created to assess the capability of a coiled tubing string to reach the desired depth in a projected long horizontal well. The scope of this essay is to provide a complete set of simulations to predict the tubing forces for two proposed different diameters of openhole section. Such simulations can serve as guidelines for completing the well.
Abubaker, S., et al. "Development and World’s First Field Deployment of 2.125 Tridem Coiled Tubing Tractor for Extended Reach Open Hole Horizontal Wells with ESP Completions: Paper SPE 188283-MS, November 2017, UAE.
Badeghaish, W., et al. "Comprehensive Review of well tractor technology in Highly Extended Reach Wells": Paper SPE 189906-MS, March 2018, USA.
Bhalla, K.: Coiled Tubing Extended Reach Technology; Paper SPE-30404: September 1995; Scotland.
Bhalla, K.: Achieving Extended Reach: Paper SPE-36347: February 1996: USA.
Crumpton, H., "Well Control For Completions and Interventions": Gulf Professional Publishing; ISBN 978-0-08-100196-7: USA 2008.
Livescu, S., et al., "Coiled Tubing Friction in Extended Reach Wells; Paper": SPE-179100-MS: March 2016: USA.
Coiled Tubing Stress Analysis Model, Stress/Drag/Hydraulic/Buckling Theory and User´s Manual; [Online] review 6th August 2021: Available in INTERNET
https://www.bsee.gov/sites/bsee.gov/files/tap-technical-assessment-program//300ao.pdf.
Omari, M. Al., Plessing, H. "Innovation in Coiled Tubing Tractor Technology Extends the Accessibility of Coiled Tubing in Horizontal Wells, allowing better possibilities for well intervention": Paper SPE-105225-MS March 2007: Bahrain.
Moore, N.B., et al. Delivering Perforation String in Extended Reach Wells with Coiled Tubing and Hydraulic Tractor: Paper SPE 94208: April 2005: USA.
Newman, K., Kelleher, P. "CT Extended Reach-Can we Reach Farther? ": Paper SPE 168235: March 2014: USA.
Robello, S. "Friction Factors: What are They for Torque, Drag, Vibration, Bottom Hole Assembly and Transient Surge/Swab Analyses? ": Paper SPE-128059-MS: February 2010:USA.
Schlumberger oil field glossary: [Online] review 08th August 2021; Available in INTERNET https://glossary.oilfield.slb.com/en/terms/f/friction_reducer.
Western Well tool International: [Online] review 05th August 2021; Available in INTERNET https://www.wwtco.com/products/wwt-coiled-tubing-tractors.
Stoianovici, D., Chis, T., Well production with casing sand bridge, Romanian Journal of Petroleum & Gas Technology Vol. IV (LXXV ) NO. 1/2023.