Advanced Control Of Managed Pressure Drilling
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Advanced Control Of Managed Pressure Drilling
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Author : Anirudh Nandan
language : en
Publisher:
Release Date : 2016
Advanced Control Of Managed Pressure Drilling written by Anirudh Nandan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Automation of managed pressure drilling (MPD) enhances the safety and increases efficiency of drilling and that drives the development of controllers and observers for MPD. The objective is to maintain the bottom hole pressure (BHP) within the pressure window formed by the reservoir pressure and fracture pressure and also to reject kicks. Practical MPD automation solutions must address the nonlinearities and uncertainties caused by the variations in mud flow rate, choke opening, friction factor, mud density, etc. It is also desired that if pressure constraints are violated the controller must take appropriate actions to reject the ensuing kick. The objectives are addressed by developing two controllers: a gain switching robust controller and a nonlinear model predictive controller (NMPC). The robust gain switching controller is designed using H1 loop shaping technique, which was implemented using high gain bumpless transfer and 2D look up table. Six candidate controllers were designed in such a way they preserve robustness and performance for different choke openings and flow rates. It is demonstrated that uniform performance is maintained under different operating conditions and the controllers are able to reject kicks using pressure control and maintain BHP during drill pipe extension. The NMPC was designed to regulate the BHP and contain the outlet flow rate within certain tunable threshold. The important feature of that controller is that it can reject kicks without requiring any switching and thus there is no scope for shattering due to switching between pressure and flow control. That is achieved by exploiting the constraint handling capability of NMPC. Active set method was used for computing control inputs. It is demonstrated that NMPC is able to contain kicks and maintain BHP during drill pipe extension.
Managed Pressure Drilling
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Author : Bill Rehm
language : en
Publisher: Elsevier
Release Date : 2013-12-18
Managed Pressure Drilling written by Bill Rehm and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-18 with Science categories.
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.
Universal Well Control
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Author : Gerald Raabe
language : en
Publisher: Gulf Professional Publishing
Release Date : 2021-11-03
Universal Well Control written by Gerald Raabe and has been published by Gulf Professional Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-03 with Science categories.
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
Modeling And Control Of Managed Pressure Drilling Operations
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Author : Adrian Marius Ambruș
language : en
Publisher:
Release Date : 2017
Modeling And Control Of Managed Pressure Drilling Operations written by Adrian Marius Ambruș and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
The upstream oil and gas industry has witnessed a marked increase in the number of wells drilled in areas with elevated subsurface formation pressures and narrow drilling margins. Managed Pressure Drilling (MPD) techniques have been developed to deal with the challenge of narrow margin wells, offering great promise for improved rig safety and reduced non-productive time. Automation of MPD operations can ensure improved control over wellbore pressure profiles, and there are several commercial solutions currently available. However, these automation efforts seldom take into account the uncertainty and complex dynamics inherent in subsurface environments, and usually assume ideally functioning sensors and actuators, which is rarely the case in real-world drilling operations. This dissertation describes a set of tools and methods that can form the basis for an automation framework for MPD systems, with specific focus on the surface back-pressure technique of MPD. Model-based control algorithms with robust reference tracking, as well as methods for detecting system faults and handling modeling uncertainty, are integrated with a novel multi-phase hydraulics model. The control system and event detection modules are designed using physics-based representations of the drilling processes, as well as models relating uncertain variables in a probabilistic fashion. Validation on high-fidelity simulation models is conducted in order to ascertain the effectiveness of the developed methods.
Managed Pressure Drilling
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Author : Wilson C Chin
language : en
Publisher: Gulf Professional Publishing
Release Date : 2012-01-17
Managed Pressure Drilling written by Wilson C Chin and has been published by Gulf Professional Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-17 with Business & Economics categories.
If done properly, MPD can improve economics for any well being drilled by reducing a rig's nonproductive time. Written for engineers, drilling managers, design departments, and operations personnel, Managed Pressure Drilling Modeling is based on the author's on experience and offers instruction on planning, designing and executing MPD projects. Compact and readable, the book provides a step by step methods for understanding and solve problems involving variables such as backpressure, variable fluid density, fluid rheology, circulating friction, hole geometry and drillstring diameter. All MPD variations are covered, including Constant Bottomhole Pressure, Pressurized MudCap Drilling and Dual Gradient Drilling. Case histories from actual projects are designed and analyzed using proprietary simulation software online.
Control And Optimization Frameworks For Managed Pressure Drilling Process
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Author : Salman Abdul Mujeeb
language : en
Publisher:
Release Date : 2012
Control And Optimization Frameworks For Managed Pressure Drilling Process written by Salman Abdul Mujeeb and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Managed pressure drilling (Petroleum engineering) categories.
Modern Borehole Analytics
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Author : Wilson C. Chin
language : en
Publisher: John Wiley & Sons
Release Date : 2017-10-12
Modern Borehole Analytics written by Wilson C. Chin and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-12 with Science categories.
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 for the industry.
Managed Pressure Drilling
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Author : Sagar Nauduri
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2012
Managed Pressure Drilling written by Sagar Nauduri and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Managed Pressure Drilling, MPD, one of the advanced techniques in the Drilling and Petroleum Industry, currently at the top of the drilling technology evolution pyramid, is a collection of tested drilling techniques and variations. MPD, when properly engineered and executed, in most of the scenarios, can help mitigate several drilling issues, and improve personal and environmental safety. However, not all wells with drilling issues and/or problems need MPD. Proper screening of potential candidates with utmost diligence is required prior to electing to use MPD. Any technology, let alone MPD, new or old, simple or complex, expensive or cheap, should not be applied without thorough understanding and careful evaluation of the entire process. Technology used for wrong reasons, with incomplete comprehension, and half-hearted assessment and analysis, is bound to give wrong, sometimes even catastrophic, results. This work, a research submitted to Texas A&M in 2009, freely downloadable from www.tamu.edu, is an attempt to provide basic steps in the candidate selection and evaluation while screening for MPD applications. Basic understanding of Drilling and Petroleum Engineering will help.
Design Development And Control Of A Managed Pressure Drilling Setup
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Author : Al Amin
language : en
Publisher:
Release Date : 2017
Design Development And Control Of A Managed Pressure Drilling Setup written by Al Amin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Drilling in challenging conditions require precise control over hydrodynamic parameters for safer and efficient operation in oil and gas industries. Automated managed pressure drilling (MPD) is one of such drilling solution which helps to maintain operational parameters effectively over conventional drilling technique. The main goal is to maintain bottomhole pressure between reservoir formation pressure and fracture pressure with kick mitigation ability. Real life MPD system has to confront nonlinearity induced by drilling fluid rheology and flow parameters. To obtain a better understanding of this operation, a lab scale experimental setup has been developed. Reynolds number and pressure drop per unit length were considered to obtain hydrodynamic similarity. A vertical concentric pipe arrangement has been used to represent the drill string and annular casing region. A linearized gain switching proportional integral (PI) controller and a nonlinear model predictive controller (NMPC) have been developed to automate the control operation in the experimental setup. A linearizer has been designed to address the choke nonlinearity. Based on the flow and pressure criteria, a gain switching PI controller has been developed which is able to control pressure and flow conditions during pipe extension, pump failure and influx attenuation cases. On the other hand, a nonlinear Hammerstein-Weiner model has been developed which assists in bottomhole pressure estimation using pump flow rate and choke opening. The identified model has been integrated with a NMPC algorithm to achieve effective control within predefined pressure and flow constraints. Lastly, a performance comparison has been provided between the linearized gain switching PI controller and NMPC controller.
Safety And Reliability Assessment Of Managed Pressure Drilling In Well Control Operations
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Author : Idris Olusola Sule
language : en
Publisher:
Release Date : 2019
Safety And Reliability Assessment Of Managed Pressure Drilling In Well Control Operations written by Idris Olusola Sule and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
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.