Download or read book Numerical Evaluation of Various Well Control Methods with Emphasis on Application in Managed Pressure Drilling Operation written by Edgar Alexis Flores Barriguette and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Managed Pressure Drilling (MPD) is a modified drilling process designed to accurately manage the annular pressures of the wellbore with a combination of surface back pressure (SBP), flow rate and drilling mud density. MPD is designed to identify and circulate out kicks (uncontrolled flow of formation fluids into the wellbore) that possess blowout risk. Since MPD allows fast changes in the bottom hole pressure, the reaction to an undesirable inflow is not automatically to shut in the well and increase the density of the mud which is the well control procedure in conventional drilling. This feature of MPD can aid in lowering the non-productive time (NPT) as well as drilling related problems such as stuck pipe that results from well control operations. The objective of this research is to compare and evaluate the current conventional and MPD well control methods for gas kicks in a deepwater well. A total of seven well control methods are chosen from literature and subjected to an effectiveness criterion such as total time to control and circulate the kick, maximum pressures imposed on surface equipment and whether each well control method resulted in fracturing the formation at the casing shoe. Two different kick volumes (2 bbl and 10 bbl) with two different values of formation permeability (10 mD and 500 mD) and three different kick intensities (0.1 ppge, 0.5 ppge, 1.0 ppge) are chosen for kick scenarios in this study. The kick scenarios are selected to resemble realistic events that occur during drilling operations. In this study, only kicks resulting from drilling into a higher-pressure zone than expected are subjected to analysis. DrillbenchTM Dynamic Well Control simulator, is used in this research. A model validation, in terms of drilling hydraulics and rising gas velocities in the annuli, is included in this study to verify the reliability of the software's output. The validation is carried out using analytical relations and experimental correlations obtained from literature. The Bingham Plastic fluid model is used in the drilling hydraulics validation and the correlations suggested by Caetano (1985) and Hassan and Kabir (1992) are used for the verification of rising gas velocity in the annular space. In general, validation results show a reasonable agreement with the software's output. The results of 84 simulations showed that in the scenarios with low permeability, with both kick volumes and with the three different kick intensities, MPD well control methods were able to reduce the total well control time by more than 50% compared to the driller's method. ii Furthermore, in the same scenarios with high permeability, the MPD methods outperformed the driller's method in terms of time to stop the kick as well as maximum pressures imposed on surface equipment. The MPD well control method that combines Qin-SBP increments shows to have better results in terms of the total time to control and circulate the kick as well as lower imposed pressures in the casing shoe and surface equipment. This study can be used as a basis for further research in well control with MPD, with more attention to the method of combining Qin-SBP to stop the kick. Finally, this research can be used as a guide to determine the best combination of well control practices for wells with similar characteristics of the well studied in this thesis.

Download or read book Universal Well Control written by Gerald Raabe and published by Gulf Professional Publishing. This book was released on 2021-11-03 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Universal Well Control gives today’s drilling and production engineers a modern guide to effectively and responsibly manage rig operations. In a post-Macondo industry, well control continues to require higher drilling costs, a waste of natural resources, and the possibility of a loss of human life when kicks and blowouts occur. The book delivers updated photos, practice examples and methods that are critical to modern well control information, ensuring engineers and personnel stay safe, environmentally responsible and effective. Complete with all phases of well control, the book covers kick detection, kick control, loss of control and blowout containment and killing. A quick tips section is included, along with templated. step-by-step methods to replicate for non-routine shut-in methods. Bonus equipment animations are included, along with a high number of visuals. Specialized methods are covered, including dual gradient drilling and managed pressure drilling. Provides a practical training guide that is focused on well control, including expanded subsea coverage Includes well kill procedures, with added kill sheets and bonus video equipment animations Helps readers understand templated steps for non-routine shut-in methods, such as the lubricate and bleed method and variable mud volume

Download or read book Safety and Reliability Assessment of Managed Pressure Drilling in Well Control Operations written by Idris Olusola Sule and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Managed pressure drilling (MPD) is a technique utilized in drilling to manage annular pressure, hold reservoir influx, and divert mud returns away safely from the rig floor through a closed loop system. Thus, MPD plays key roles in well control operations and in drilling deepwater wells. However, despite the operational, safety, and economic benefits, limited information is available on understanding the complexity of MPD system. Furthermore, the oil and gas industry currently relies on a flow monitoring system for earlier kick detection but faces severe flaws and limited progress has been made on approach that monitors kick from downhole due to the complexity of offshore drilling operations. Thus, the main objective of this research is to assess the safety and reliability of MPD. In this research, following novel contributions have been made: several dynamic downhole drilling parameters have been identified to enhance earlier kick detection technique during drilling, including about 33 - 89% damping of bit-rock vibrations due to gas kick; a reliability assessment model has been developed to estimate the failure probability of an MPD system as 5.74%, the assess the increase in reliability of kick control operation increases from 94% to 97% due to structural modification of the MPD components, identify that MPD operational failure modes are non-sequential, and identify that an MPD control system is the most safety-critical components in an MPD system; an automated MPD control model, which implements a nonlinear model predictive controller (NMPC) and a two-phase hydraulic flow model, has been developed to perform numerical simulations of an MPD operation; and lastly, an integrated dynamic blowout risk model (DBRM) to assess the safety during an MPD operation has been developed and its operation involves three key steps: a dynamic Bayesian network (DBN) model, a numerical simulation of an MPD control operation, and dynamic risk analysis to assess the safety of the well control operation as drilling conditions change over time. The DBRM also implemented novel kick control variables to assess the success / failure of an MPD operation, i.e. its safety, and are instrumental in providing useful information to predict the performance of / diagnose the failure of an MPD operation and has been successfully applied to replicate the dynamic risk of blowout risk scenarios presented in an MPD operation at the Amberjack field case study from the Gulf of Mexico.

Download or read book An Introduction to Well Control Calculations for Drilling Operations written by Dave Cormack and published by Springer. This book was released on 2017-08-10 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book removes the mystery and pressure from calculations by equipping readers with the tools they need to understand calculations and how they work. This is done by using straight-forward language and showing fully worked out, rig-based examples throughout. The book comprises of mini lessons which are never more than two pages long and a complete lesson is always in view when the book is open in front of you. Lessons progress in a logical manner and once the book is finished, the reader is ready for any calculations that could be encountered at well control school. It is a great tool for rig crew members who are afraid of calculations or have not done any math since school. I found it easy to follow with clear explanations and it flowed from topic to topic. A definite addition to the rig crews training toolbox. Malcolm Lodge (at the time of writing Technical Director of the Well Control Institute)

Download or read book Managed Pressure Drilling written by Bill Rehm and published by Elsevier. This book was released on 2013-12-18 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: With extraction out of depleted wells more important than ever, this new and developing technology is literally changing drilling engineering for future generations. Never before published in book form, these cutting-edge technologies and the processes that surround them are explained in easy-tounderstand language, complete with worked examples, problems and solutions. This volume is invaluable as a textbook for both the engineering student and the veteran engineer who needs to keep up with changing technology.

Download or read book Well Control for Completions and Interventions written by Howard Crumpton and published by Gulf Professional Publishing. This book was released on 2018-04-04 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: Well Control for Completions and Interventions explores the standards that ensure safe and efficient production flow, well integrity and well control for oil rigs, focusing on the post-Macondo environment where tighter regulations and new standards are in place worldwide. Too many training facilities currently focus only on the drilling side of the well’s cycle when teaching well control, hence the need for this informative guide on the topic. This long-awaited manual for engineers and managers involved in the well completion and intervention side of a well’s life covers the fundamentals of design, equipment and completion fluids. In addition, the book covers more important and distinguishing components, such as well barriers and integrity envelopes, well kill methods specific to well completion, and other forms of operations that involve completion, like pumping and stimulation (including hydraulic fracturing and shale), coiled tubing, wireline, and subsea intervention. Provides a training guide focused on well completion and intervention Includes coverage of subsea and fracturing operations Presents proper well kill procedures Allows readers to quickly get up-to-speed on today’s regulations post-Macondo for well integrity, barrier management and other critical operation components

Download or read book Simulation Study of Emerging Well Control Methods for Influxes Caused by Bottomhole Pressure Fluctuations During Managed Pressure Drilling written by Hakan Guner and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modern Borehole Analytics written by Wilson C. Chin and published by John Wiley & Sons. This book was released on 2017-10-12 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a leading industry specialist, a must-have for drilling specialists, petroleum engineers, and field practitioners, this is the only book providing practical, rigorous and validated models for general annular flows, eccentric geometries, non-Newtonian fluids, yield stresses, multiphase effects, and transient motions and flow rates and includes new methods describing mudcake integrity and pore pressure for blowout assessment. Wilson C. Chin has written some of the most important and well-known books in the petroleum industry. These books, whose research was funded by the U.S. Department of Energy and several international petroleum corporations, have set very high standards. Many algorithms are used at leading oil service companies to support key drilling and well logging applications. For the first time, the physical models in these publications, founded on rigorous mathematics and numerical methods, are now available to the broader industry: students, petroleum engineers, drillers and faculty researchers. The presentations are written in easy-to-understand language, with few equations, offering simplified explanations of difficult problems and solutions which provide key insights into downhole physical phenomena through detailed tabulations and color graphics displays. Practical applications, such as cuttings transport, pressure control, mudcake integrity, formation effects in unconventional applications, and so on, are addressed in great detail, offering the most practical answers to everyday problems that the engineer encounters. The book does not stop at annular flow. In fact, the important role of mudcake growth and thickness in enabling steady flow in the annulus is considered, as is the role of (low) formation permeability in affecting mud filtration, cake growth, and fluid sealing at the sandface. This is the first publication addressing "the big picture," a "first" drawn from the author's related research in multiple disciplines such as drilling rheology, formation testing and reservoir simulation. A must-have for any petroleum engineer, petroleum professional, or student, this book is truly a groundbreaking volume that is sure to set new standards.

Download or read book Consideration of Compressibility Effects for Applied back Pressure Dynamic Well Control Response to a Gas Kick in Managed Pressure Drilling written by William Alexander Bacon and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Managed Pressure Drilling (MPD) operations offer the ability to control a relatively small gas kick dynamically, without shutting in the well using blowout preventers. One currently employed method of dynamic well control uses applied-back-pressure to force flow exiting the wellbore to equal flow entering the drill-pipe, which is taken as an indication that the influx has stopped. However, for flow out equals flow in to imply influx cessation, the assumption of incompressibility of fluid in the wellbore is necessary. When fluid compressibility is appreciable, solely ensuring flow rate continuity does not necessarily imply influx cessation. The period of "dynamic well control" in an MPD operation- from the moment an influx is identified until the moment the influx is believed to have ceased- is examined in this work. A control volume mass balance with compressibility is used to analyze the system. This approach enables inclusion in flow calculations of the expansion or compression of in-situ influx gas within the wellbore. Since cessation of influx is the primary goal of dynamic well control, this work examines the transient, multiphase flow behavior in the annulus to explore limitations of the existing applied-back-pressure, dynamic, well control technique. It is shown that with the existing method, influx cessation does not always occur once flow out is constrained to equal flow in. It is also shown that in some situations where influx cessation is indeed achieved when flow out equals flow in, the back pressure applied at surface is higher than required to achieve influx cessation- i.e., influx ceases before the moment when flow out equals flow in. These outcomes are the consequence of the compressibility of the in-situ gas, and make the existing method unreliable in some critical situations of influx. A new applied-back-pressure, dynamic well control technique has been proposed, and a transient, multiphase flow analysis is used to identify pressure-based indicators of influx cessation. It is shown that time derivatives of pressure and pressure transfer carry the signature of well response for the given control strategy, and can be used to infer cessation of influx. It is argued that, taken together, these are more reliable indicators of influx cessation (and hence successful well control) than solely ensuring flow out equals flow in. Numerous transient, multiphase flow simulations have been conducted to support the key conclusions of this work.

Download or read book Advanced Blowout Well Control written by Robert D. Grace and published by Gulf Professional Publishing. This book was released on 1994 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Full text engineering e-book.

Download or read book Practical Well Control written by Jim Fitzpatrick and published by . This book was released on 1991 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Well Control written by David Watson and published by . This book was released on 2003 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Well Control addresses all phases of well control, from the design stage of a well through plug and abandonment.

Download or read book An Introduction to Drilling Calculations written by David Cormack and published by Gulf Professional Publishing. This book was released on 2017-01-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Drilling Calculations: Volume, Pressure, and Well Control lays the foundation to successfully pass well control tests the first time, saving companies time and money on retesting. Kicking off with basic calculations and equations, this handy training tool slowly works through converting units, symbols in the calculations, and understanding basic math for daily oilfield tasks. The book advances to cover volume, including string and hole volume, kill sheets, and annular velocity. Pressure is also addressed to illustrate changes in mud weight, formation strength, and tripping pressure calculations. Finally, well control basics are covered with kill mud weight sheets, influx height and gradient, and overbalance/underbalance. Test questions are included at the end of each stage, and there is a practice test at the end of the book to ensure well control school is effective. With straightforward learning and simple illustrations, the book is a critical tool for drilling personnel who are looking for tactics on how to safely and effectively supervise and manage today's rigs. Allows users to understand basic daily calculations related to drilling field operations and well control training Presents an easy-to-understand language and simple illustrations to ensure clarity on basic math calculations, pressure, volume, and well control Includes practice questions at the end of each chapter and a full test at the end of the book

Download or read book Well Control Problems and Solutions written by Neal Adams and published by . This book was released on 1980 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nonlinear Model Predictive Control for a Managed Pressure Drilling with High fidelity Drilling Simulators written by Junho Park and published by . This book was released on 2018 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world’s energy demand has been rapidly increasing and is projected to continue growing for at least the next two decades. With increasing global energy demand and competition from renewable energy, the oil and gas industry is striving for more efficient petroleum production. Many technical breakthroughs have enabled the drilling industry to expand the exploration to more difficult drilling such as deepwater drilling and multilateral directional drilling. For example, managed pressure drilling (MPD) offers ceaseless operation with multiple manipulated variables (MV) and wired drill pipe (WDP) provides two-way, high-speed measurements from bottom hole and along-string sensors. These technologies have maximum benefit when applied in an automation system or as a real-time advisory tool. The objective of this study is to investigate the benefit of nonlinear model-based control and estimation algorithms with various types of models. This work presents a new simplified flow model (SFM) for bottomhole pressure (BHP) regulation in MPD operations. The SFM is embedded into model-based control and estimation algorithms that use model predictive control (MPC) and moving horizon estimation (MHE), respectively. This work also presents a new Hammerstein-Wiener nonlinear model predictive controller for BHP regulation. Hammerstein-Wiener models employ input and output static nonlinear blocks before and after linear dynamics blocks to simplify the controller design. The control performance of the new Hammerstein-Wiener nonlinear controller is superior to conventional PID controllers in a variety of drilling scenarios. Conventional controllers show severe limitations in MPD because of the interconnected multivariable and nonlinear nature of drilling operations. BHP control performance is evaluated in scenarios such as drilling, pipe connection, kick attenuation, and mud density displacement and the efficacy of the SFM and Hammerstein-Wiener models is tested in various control schemes applicable to both WDP and mud pulse systems. Trusted high-fidelity drilling simulators are used to simulate well conditions and are used to evaluate the performance of the controllers using the SFM and Hammerstein-Wiener models. The comparison between non- WDP (semi-closed loop) and WDP (full-closed loop) applications validates the accuracy of the SFM under the set of conditions tested and confirms comparability with model-based control and estimation algorithms. The SFM MPC maintains the BHP within 1 bar of the setpoint for each investigated scenario, including for pipe connection and mud density displacement procedures that experience a wider operation range than normal drilling.

Download or read book Blowout and Well Control Handbook written by Robert D. Grace and published by Gulf Professional Publishing. This book was released on 2017-05-26 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Blowout and Well Control Handbook, Second Edition, brings the engineer and rig personnel up to date on all the useful methods, equipment, and project details needed to solve daily well control challenges. Blowouts are the most expensive and one of the most preventable accidents in the oil and gas industry. While some rig crews experience frequent well control incidents, some go years before seeing the real thing. Either way, the crew must always be prepared with quick understanding of the operations and calculations necessary to maintain well control. Updated to cover the lessons learned and new technology following the Macondo incident, this fully detailed reference will cover detection of influxes and losses in equipment and methods, a greater emphasis on kick tolerance considerations, an expanded section on floating drilling and deepwater floating drilling procedures, and a new blowout case history from Bangladesh. With updated photos, case studies, and practice examples, Blowout and Well Control Handbook, Second Edition will continue to deliver critical and modern well control information to ensure engineers and personnel stay safe, environmentally-responsible, and effective on the rig. Features updated and new case studies including a chapter devoted to the lessons learned and new procedures following Macondo Teaches new technology such as liquid packer techniques and a new chapter devoted to relief well design and operations Improves on both offshore and onshore operations with expanded material and photos on special conditions, challenges, and control procedures throughout the entire cycle of the well

Download or read book The Diagnosis of Well Control Complications During Managed Pressure Drilling written by Brian Piccolo and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: