A model on dual string drilling: on the road to deep waters

  • Vivek Thakar
  • Sachin Nambiar
  • Manan Shah
  • Anirbid Sircar
Original Article
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Abstract

As the offshore market is facing the deepwater production challenges, the Oil and Gas Industry is investing in new technologies to bring down costs needed to effectively exploit reservoirs. Therefore, dual string drilling (DSD) can eliminate the marine riser which would result in exploring oil fields in deep and ultra-deepwater economically. In order for controlling fluid contact with a borehole wall during drilling operations include introducing an outer pipe into a borehole and positioning an inner pipe within the outer pipe axially. The method may further include circulating a drilling fluid to a drill bit using inner pipe and the annulus between the inner pipe and outer pipe. The drilling fluid may be separated from the control fluid by using an annular isolator. The results showed that with DSD approach a lot of time will be saved in order to circulate the kick out of the well. Apart from riserless drilling, DSD has an efficient cutting removal capacity, better annular clearance, elimination of differential sticking, better well stability, better well control parameters, reduction of torque and drag, avoid the dynamic equivalent circulating density gradient, and better extended reach drilling. The novelty of the new dynamics model is in the ability to solve narrow operational margin between pore pressure and fracture pressure as we move into deeper waters.

Keywords

Riserless Control fluid Annular isolator Equivalent circulation density Well control 

Notes

Acknowledgements

The authors are grateful to Pandit Deendayal Petroleum University for the permission to publish this paper. Authors are thankful to Mr. Gudendrasingh Negi for his technical advice and support.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.

References

  1. Adams N, Kuhlman L (1994) Kicks and blowout control. second edition. Copyright 1980. Penn Well Publishing Company, Tulsa, p 472Google Scholar
  2. Andersen EE, Cooper GA, Maurer WC, Westcott PA (1991) An analysis of relative costs in drilling deep wells. Prepared for presentation at the 66th annual technical conference and exhibition of the society of petroleum engineers held in Dallas, TX, SPE 22574, pp 1–10Google Scholar
  3. Dhali MK, Biswas M (2017) Geo-hydrological response to pothole formation: a quantitative study of Kharsoti River, India. Model Earth Syst Environ 3:32.  https://doi.org/10.1007/s40808-017-0280-5 CrossRefGoogle Scholar
  4. Digas B, Rozenberg V, Kuklin A (2016) Application of integrated assessment model MERGE to studying ecological-economic indices. Model Earth Syst Environ 2(129):1–8.  https://doi.org/10.1007/s40808-016-0187-6 Google Scholar
  5. Frøyen J, Rommetveit R, Jaising H (2006) Riserless mud recovery (RMR) system evaluation for top hole drilling with shallow gas. SPE 102579Google Scholar
  6. Godhvan JM, Knudsen KA (2010) High performance and reliability for MPD control system ensured by extensive testing. Presented at 2010 IADC/SPE Drilling Conference and Exhibition held in New Orleans, Louisiana, USA, IADC/SPE 128222, pp 1–16Google Scholar
  7. Hannegan D, Stave R (2006) The time has come to develop riserless mud recovery technology’s deepwater capabilities. Drilling Contractor, pp 50–54Google Scholar
  8. Ouhibi R, Mzali H, Ghanmi M, Zargouni F (2018) Determining of a complex structure consisting of detachment, fault-bend and fault propagation folds in the collapse structure of Zaghouan-Bouficha (Bouficha region, north eastern Tunisia). Model Earth Syst Environ.  https://doi.org/10.1007/s40808-018-0413-5
  9. Peng Q, Fan H, Ji R, Chen J (2016) A simplified method of hydraulics analysis for riserless drilling system. OTC-26880-MS, pp 1–13Google Scholar
  10. Rajabi MM, Nergaard AI, Hole O, Vestavik OM (2010) Riserless reelwell drilling method to address many deepwater drilling challenges. Presented at the IADC/SPE drilling conference and exhibition held in New Orleans, Louisiane, USA, IADC/SPE 126148, pp 1–7Google Scholar
  11. Schubert JJ, Seland S, Johansen TJ, Juvkam-Wold HC (1999) Greater kick tolerance and fewer casing strings make dual gradient drilling a winner. IADC well control conference of the Americas, 25–26 August 1999, Houston, Texas, pp 1–31Google Scholar
  12. Seyedmohammadi J (2017) The effects of drilling fluids and environment protection from pollutants using some models. Model Earth Syst Environ 3:23.  https://doi.org/10.1007/s40808-017-0299-7 CrossRefGoogle Scholar
  13. Shalafi M, Moradi S, GhassemAlaskari MK, Kazemi MS (2016) Drilling fluid loss control via implementing the FMI and DSI logs to protect environment. Model Earth Syst Environ 2:183.  https://doi.org/10.1007/s40808-016-0241-4 1–10.CrossRefGoogle Scholar
  14. Smith D, Winters W, Tarr B, Ziegler R, Riza I, Faisal M (2010). New deepwater riserless mud recovery system opens door to deep-water dual-gradient drilling. Drilling Contractor May/June 2010Google Scholar
  15. Stave R (2007) Riserless mud return technology solves shallow wellbore instability problem: a case history, Presentation to American Assoc. Drilling Engineers, pp 1–30Google Scholar
  16. Stave R, Farestveit R, Hyland S, Rochmann PO, Rolland (2005) Demonstration and qualification of a riserless dual gradient system. OTC 17665, 1–11Google Scholar
  17. Stave R, Fossli B, Endresen C, Rezk RH, Tingvoll GI, Thorkildsen M (2014) Exploration drilling with riserless dual gradient technology in Arctic waters. OTC 24588:1–7Google Scholar
  18. Udosen NI, George NJ (2018) A finite integration forward solver and a domain search reconstruction solver for electrical resistivity tomography (ERT). Model Earth Syst Environ.  https://doi.org/10.1007/s40808-018-0412-6 Google Scholar
  19. Utheim M (2014) Well control analysis in conventional and riserless reelwell method. Master Thesis, pp 1–80Google Scholar
  20. Vestavik O, Kerr S, Brown S (2009) Reelwell drilling method. Prepared for presentation at the SPE/IADC Drilling Conference and Exhibition in Amsterdam, SPE/IADC 119491, pp 680–689Google Scholar
  21. Vestavik O, Egorenkov M, Schmalhorst B, Falcao J, Roedbro M (2013) Extended reach drilling—new solution with a unique potential. SPE/IADC 163463:1–18Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Vivek Thakar
    • 1
  • Sachin Nambiar
    • 1
  • Manan Shah
    • 1
  • Anirbid Sircar
    • 1
  1. 1.School of Petroleum TechnologyPandit Deendayal Petroleum UniversityGandhinagarIndia

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