Technical Paper
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A New Buckling Severity Index to Quantify Failure and Lock-up Risks in Highly Deviated Wells
Abstract Buckling of tubulars inside wellbore has been the subject of many researches and articles in the past. Evidences in the laboratory and in the…
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A Comparison of High-Resolution Trajectory Methods and Their Impact on Drilling Data Analysis
Abstract Wellbore trajectories are a fundamental piece of data used for decisions throughout the oilfield. Trajectories are typically mapped through measurement-while-drilling (MWD) survey stations collected…
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A Better Set of Eyes: Computer Vision Technology to Monitor Safety Zones andAutomate Drill Pipe Tally
Abstract An indispensable item for every roughneck is the tally book, used to measure and count the drill pipe entering and exiting the wellbore. The…
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Fifty Ways to Leave Your Wellbore: An Honest Look at the Causes and Costs of Unplanned Sidetracks
Abstract Unplanned sidetracks are low-frequency high-cost events that have meaningful negative impact on the economics of oil field development. While it is clearly desirable to…
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Combining Downhole Axial and Surface Oscillation Tools, What Are the Consequences on Tool Face Control Performance?
Abstract When drilling in sliding mode, axial oscillation tools (AOT) and surface oscillation tools (SOT) are two possible solutions that are used in the industry…
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Continuous Improvement in Wellbore Position Accuracy: Ultra-Extended-Reach Drilling in Far Eastern Russia
Abstract Drilling ultra-extended-reach (ultra-ERD) wellbores has redefined industry standards. Operators and service companies must fully assess the accompanying risks to maximize the overall productivity of…
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Creating Open Source Models, Test Cases, and Data for Oilfield Drilling Challenges
Abstract The drilling industry has substantially improved performance based on knowledge from physics-based, statistical, and empirical models of components and systems. However, most models and…
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Detailed Dynamics Modeling Helps to Assess the Effect of Stabilizer Design on Drillstring Vibrations
Abstract Various stabilizer types are used in the industry, such as bladed stabilizers with straight or spiral blades, roller-reamers, and other emergent forms. Their designs…
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Drill Pipe Stress and Cumulative Fatigue Analysis in Complex Wells Drilling: New Approach in Fatigue Optimization
Abstract In the today high-cost and complex drilling environment, the importance of drillstring failure issue has dramatically reappeared, in spite of many manufacturing and materials…
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Drilling Performance Contract: An Evolution in the Partnership Between Operator and Rig Contractor
Abstract Performance contracts are increasingly common in the drilling industry, especially in recent years. This incentivized contract structure, established as a partnership between operator and…
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Casing Wear: Prediction, Monitoring, Analysis and Management in the Culzean Field
Abstract This paper will present predicted vs. measured wear for six wells that were analysed in the Culzean field, which is a high-pressure, high-temperature (HPHT)…
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Drilling Three-Mile Laterals Tighter and Safer with a New Magnetic Reference Technique
Abstract Three-mile laterals have become more common over the last five years of onshore US drilling. They are especially commonplace in the Appalachian and Permian…