A Challenging HPHT Operation Supported by Dynamic Real Time Simulation, Forecasting and 3D Visualization
- Josef Nabavi (eDrilling) | Rolv Rommetveit (eDrilling) | Just Sverre Wessel (Maersk Training) | Laurie Scott (Wintershall)
- Document ID
- Society of Petroleum Engineers
- IADC/SPE Drilling Conference and Exhibition, 1-3 March, Fort Worth, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2016. IADC/SPE Drilling Conference and Exhibition
- 6.1 HSSE & Social Responsibility Management, 1.6 Drilling Operations, 6 Health, Safety, Security, Environment and Social Responsibility, 7 Management and Information, 7.2.1 Risk, Uncertainty and Risk Assessment, 7.2 Risk Management and Decision-Making, 4.5 Offshore Facilities and Subsea Systems, 1.14 Casing and Cementing, 1.10 Drilling Equipment, 6.1.5 Human Resources, Competence and Training, 1.10 Drilling Equipment, 4.5 Offshore Facilities and Subsea Systems
- HPHT Drilling Operation, 3D Visualization with risk Register, Forecasting simulations 24 hours ahead, Life Cycle Drilling Simulation, Dynamic RT Simulation
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Dynamic Real Time Simulation, Forecasting and 3D Visualization was utilized extensively in support of a very challenging HPHT drilling operation in the Norwegian Sea. The well was a vertical exploration well in the Haltenbanken area.
In preparation to the operation, an advanced training session was performed using a dynamic downhole training simulator linked to a topside rig simulator, for training of the drilling teams.
A real-time link was established with the operation, and WITSML data in addition to all well, fluid and string data was streamed into a dynamic, real-time simulation system. This simulation system provided the following;
RT dynamic modelling of the pressure (ECD) and temperature profile in the wellbore; the cuttings distribution and its effects on the ECD;
Automatic look-ahead simulations of ECD and temperatures on the fly was performed with the calibrated models as support for decisions.
RT profiles of simulated versus measured pressure at the PWD, and simulated versus measured standpipe pressure
RT dynamically updated 3D Visualization of the downhole wellbore with a continuously updated risk picture made available for the drilling teams.
Seamlessly linked to the RT system was a sophisticated what-if and planning model. 24 hour forecasting of operation was provided every day, and this gave a very good indication of future possible operational impacts. In addition to 24 hours forecasting, pre-planning simulations of upcoming sub-operations as well as what-if simulations on the fly were performed. The results from these simulations were used to update the risk register and made available in the 3D Visualization window.
Three specific cases will be discussed in the paper;
Pre-simulation of running the 9 7/8" casing
Pre-simulation of cementing the 9 7/8" casing
RT modeling of ESD in case of mismatch between rig calculated and measured values
In these cases the simulations provided valuable results which increased the risk awareness and prevented problems.
The paper will also discuss the RT 3D Visualization and its impact on reducing risks and communicating the dynamic risk picture.
The total simulation system with infrastructure, models and challenges will also be presented.
The operation was successful, and the results from the simulation system was a contributor to this.
|File Size||4 MB||Number of Pages||13|
Petersen, J., Rommetveit, R., Bjorkevoll, K. S, Froyen, J., "A General Dynamic Model for Single and Multi-phase Flow Operations during Drilling, Completion, Well Control and Intervention", SPE 114688, IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, Jakarta, Indonesia, August 25&-27, 2008
Knut S Bjorkevoll, Svein Hovland, Ingvill B. Aas and Alfrid E. Vollen; "Successful Use of Real Time Dynamic Flow Modelling to Control a Very Challenging Managed Pressure Drilling Operation in the North Sea", SPE/IADC 115118, SPE/IADC Managed Pressure Drilling and UB Operations Conference & Exhibition, 24&-25 February 2010, Kuala Lumpur Malaysia.
Rommetveit, R, Odegard, S. I., Nordstrand, C.; Bjorkevoll, K. S., Cerasi, P., Helset, H. M., Li, L., Fjeldheim, M. and Havardstein, S. T., "Real Time Integration of ECD, Temperature, Well Stability and Geo/Pore Pressure Simulations during drilling a challenging HPHT well", SPE 127809, SPE Intelligent Energy Conference and Exhibition held in Utrecht, The Netherlands, 23&-25 March 2010.
Harald Blikra, Giancarlo Pia, Just Sverre Wessel, Morten Svendsen, Rolv Rommetveit and Sven Inge Odegard: "The Operational Benefit of Testing HPHT/MPD Procedures Using an Advanced Full Scale Drilling Simulator"; paper IADC/SPE 167958 presented at the SPE/IADC Drilling Conference and Exhibition held in Fort Worth, Texas, USA, 4&-6 March 2014.
Laurie Scott, Just Sverre Wessel, Josef Nabavi and Rolv Rommetveit; "Use of a Life Cycle Drilling Simulation System on a Challenging HPHT Drilling Operation in the Norwegian Sea". Paper IADC/SPE 178207 presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition held in Abu Dhabi, UAE, 26&-28 January 2016.
K. S. Bjorkevoll, R. Rommetveit, A. Ronneberg and J. Eck-Olsen: "Managing pressures during underbalanced cementing by choking the return flow; innovative design and operational modelling as well as operational lessons", paper SPE 92568, presented at the 2005 SPE/IADC Drilling Conference in Amsterdam 23 - 25 February 2005.