Experiences from use of a Managed Pressure Drilling &amp; ECD Management System during drilling of a challenging HPHT well

Rommetveit, Rolv; Odegaard, Sven Inge; Nordstrand, Christine

doi:10.2118/130325-ms

Cited by 6 publications

(1 citation statement)

References 11 publications

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“…For complex HPHT operations, accurate hydraulic models, coupled to advanced pore pressure and formation fracturing and collapse modeling, derived from logging while drilling data, have updated geo-mechanical and pore pressure predictions in real time and have thus narrowed the uncertainties involved (Rommetveit et al 2010). Also, real time simulations, monitoring and forecasting during HPHT operations have resulted in significant reduction of NPT and risk (Nabavi et al, 2016).…”

Section: Mpd Operationsmentioning

confidence: 99%

Real Time Engineering-Based Simulation Training Addresses Risk in Managed Pressure Drilling

Rommetveit

Davidson²,

Svendsen

2017

Day 2 Wed, March 15, 2017

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Managed Pressure Drilling (MPD) enables safer operations and reduces non-productive time and thus provides the opportunity to reduce well costs. Many operators however, are not fully embracing the opportunity offered by the technology, due to strict regulatory requirements, and their perception that MPD is complicated and increases risk. A basis for this perception is that operator engineers in their designs, and contractor drilling crews in day-to-day operations, are insufficiently MPD experienced to fully and safely exploit the benefits of the technology.Today, the advanced, and field proven, engineering (mathematical) models that are part and parcel of the software used in well design are also available in state of the art simulators. These engineering models and model based simulators are used by engineers during the design phase of MPD projects to replicate the conditions that will be encountered during actual well construction; picking optimal casing setting depths, using different equipment set-ups, selecting optimal drilling parameters and demonstrating the integrity of the design under a wide scenario of well conditions.Once the well design is finalized, and before drilling operations commence, the same well design is programmed into a real-time drilling simulator. During subsequent simulator exercises,, rig personnel are exposed to the range of scenarios that can unfold during actual operations, taking into account uncertainties and unexpected events. Crews, at the hard end of operations, are able to hone their competence to deal with the unexpected in a team environment under the supervision and guidance of experienced coaches.During actual MPD operations, the same advanced models can be used for automatic simulation and well monitoring purposes; they can also be integrated into the MPD control system to accurately maintain the required well pressures.This paper describes the models used and both the classroom simulator-based engineering training and the real-time rig floor simulator training that will respectively provide operator engineers and contractor well site staff the in-depth understanding of MPD that will enable them to develop their respective skills to safely and cost effectively exploit the many benefits offered by MPD.

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Section: Mpd Operationsmentioning

confidence: 99%

Real Time Engineering-Based Simulation Training Addresses Risk in Managed Pressure Drilling

Rommetveit

Davidson²,

Svendsen

2017

Day 2 Wed, March 15, 2017

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Application of artificial neural networks in the drilling processes: Can equivalent circulation density be estimated prior to drilling?

Alkinani

Al-Hameedi

Dunn-Norman

et al. 2020

Egyptian Journal of Petroleum

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Real Time Integration of ECD, Temperature, Well Stability and Geo/Pore Pressure Simulations during Drilling a Challenging HPHT Well

et al. 2010

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A very challenging HPHT well has been drilled utilizing an advanced ECD & Temperature, Well Stability and Geo Pressure Management System including real time simulations, early diagnosis of upcoming problems and real time simulations using stateof-the art models. The System uses all available real time drilling data (surface and downhole) in combination with real time modelling to monitor and optimize the drilling process. This information is used to visualize the wellbore as well as simulation results in 3D in real time. It has been implemented in Total E&P Norge TASC (Total Activities Support and Collaboration) Center in Norway. Among the System elements are:• An advanced and fast Integrated Drilling Simulator which is capable to model the different drilling sub-processes dynamically, and also the interaction between these sub-processes in real time. The Integrated Drilling Simulator is used for automatic forward-looking during drilling, and can be used for what-if evaluations as well.• Data flow and computer infrastructure Among the challenges during planning and drilling of this well have been • Very small window between pore and fracture pressure. RT ECD simulations was performed with an advanced hydraulic and thermal wellbore model • Increased probability for instabilities in the tight window. Was mitigated by RT stability modeling during drilling • Uncertainties in pore pressure predictions. Was mitigated by updating predictions during drilling.Experiences from the drilling as well as use of the decision support System will be summarized and presented.

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Experiences from use of a Managed Pressure Drilling & ECD Management System during drilling of a challenging HPHT well

Cited by 6 publications

References 11 publications

Real Time Engineering-Based Simulation Training Addresses Risk in Managed Pressure Drilling

Real Time Engineering-Based Simulation Training Addresses Risk in Managed Pressure Drilling

Application of artificial neural networks in the drilling processes: Can equivalent circulation density be estimated prior to drilling?

Real Time Integration of ECD, Temperature, Well Stability and Geo/Pore Pressure Simulations during Drilling a Challenging HPHT Well

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