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Modeling the Effect of Axial Oscillation Tools in Torque and Drag Computations
Abstract When drilling complex wells, such as those with long lateral sections, the friction forces become significantly high, which can impede advancement of the drill…
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Nonlinear Dynamics of a Drillstring Immersed in a 3D Curved Well, Simulations and Experiments
Abstract During drilling operations, the bit-rock and drillstring-wellbore contacts with stick-slip phenomena, fluid structure interaction, and mass unbalances distributed along the drillstring yield nonlinear dynamics…
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PDC Bit Steerability Modeling and Testing for Push-the-bit and Point-the-bit RSS
Abstract The footage drilled with rotary steerable systems (RSS) has increased significantly these last few years, due notably to the highly complex wells drilled today.…
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Simulation of Recovery Losses Due to Positional Errors in Wellbore Placement
Abstract In unconventional resources, horizontal wells are drilled in parallel at a spacing distance designed to maximize drainage of the reservoir. Lateral well spacing should…
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Simulation Validation, Calibration and Fidelity of a Dynamic Downhole Drilling Phenomenon
Abstract This paper presents the simulation of a dynamic downhole drilling phenomenon which resulted in significant non-productive time and unnecessary drilling cost. The consistency of…
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Stiff String Casing Design: Tortuosity and Centralisation
Abstract The forces and stresses along casing strings are modeled using a stiff string torque and drag model. The effect of wellbore tortuosity and centralization…
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Using Aluminum Drill Pipe with Axial Oscillation Tools to Significantly Improve Drilling Performance
Abstract Aluminum drill pipe has already been proven as a viable alternative to steel drill pipe when drilling long horizontal wells thanks to its lighter…
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Using Hybrid Propulsion Autonomous Marine Vehicles to Better Characterize Geomagnetic Fields Offshore
Abstract We present a study conducted to develop and validate new capabilities for offshore geomagnetic surveying that employs the autonomous marine vehicle (AMV) to map…