Automated Pressure Control for UBD Operations: Case Study and Field Validation
- Christian Berg (Kelda Drilling Controls and University of South-Eastern Norway) | Jon Åge Stakvik (Kelda Drilling Controls and Norwegian University of Science and Technology) | Stanislav Kulikov (GNS) | Maytham Badrawi (Air Drilling Associates) | Glenn-Ole Kaasa (Kelda Drilling Controls) | Aleksandr Dubovtsev (Gazpromneft-Vostok) | Sergey Korolev (Gazpromneft-Vostok) | Gurban Veliyev (GNS)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- March 2020
- Document Type
- Journal Paper
- 38 - 47
- 2020.Society of Petroleum Engineers
- underbalanced drilling, managed pressure drilling, case study, automation
- 0 in the last 30 days
- 152 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 5.00|
|SPE Non-Member Price:||USD 35.00|
In this paper, we present field results from a series of drilling operations where advances in sensor and control-system technology enable a high degree of automated pressure control in underbalanced-drilling (UBD) operations in Siberia, Russia. Traditionally, this fractured carbonate field was drilled conventionally using water as drilling fluid, accepting losses after hitting the first fractures, resulting in wells with access to only two or three fractures and not reaching target depth (TD) of the productive section. For these operations, a combination of nitrified water and crude oil was used. Applying automated pressure control with UBD equipment enables drilling with a controlled drawdown from the fractures, enabling the drilling of significantly longer wells, maximizing discovered fractures per well.
In this paper, we show how the drilling of these wells has been achieved with the combination of sensors for managed-pressure drilling (MPD) and UBD and an automated pressure control system that maintains a constant drawdown throughout operations.
|File Size||1 MB||Number of Pages||10|
Aström, K. 2014. History of Adaptive Control. In Encyclopedia of Systems and Control, ed. John Baillieul and Tariq Samad, 1–9. London: Springer London.
Koveshnikov, A. E., Nesterova, A. C., and Dolgaya, T. F. 2016. Fracture System Influence on the Reservoirs Rock Formation of Ordovician-Devonian Carbonates in West Siberia Tectonic Depression. IOP Conf. Ser.: Earth Environ. Sci 43 (1), Article No. 012008, 7 pages. https://doi.org/10.1088/1755-1315/43/1/012008.
Lavretsky, E. and Wise, K. 2012. Robust and Adaptive Control: With Aerospace Applications. London, UK: Springer-Verlag London.
Stakvik, J. Å., Berg, C., Kaasa, G.-O. et al. 2016. Adaptive Model Based Choke Control System for MPD Operations. Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, Galveston, Texas, USA, 12–13 April. SPE-179714-MS. https://doi.org/10.2118/179714-MS.
Stakvik, J. Å., Berg, C., Kaasa, G.-O. et al. 2017a. Cascaded Bottom Hole Pressure Control in Managed Pressure Drilling. Paper presented at the IEEE Conference on Control Technology and Applications (CCTA), Mauna Lani, Hawaii, USA, 27–30 August. https://doi.org/10.1109/CCTA.2017.8062748.
Stakvik, J. Å., Berg, C., Kaasa, G.-O. et al. 2017b. Model-Based Control in Managed Pressure Drilling. Paper presented at the SPE/IADC Drilling Conference and Exhibition, The Hague, The Netherlands, 14–16 March. SPE-184649-MS. https://doi.org/10.2118/184649-MS.