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| Production Logging - RMP - Virtual, Blended Delivery |
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Discipline: Production and Completions Engineering Level: Intermediate Duration: 29 days Instructor(s): Dale Fitz |
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Production logging refers to acquiring a suite of logging measurements in a completed well that is either on injection or production to evaluate the flow performance of the well or the reservoir. Special purpose production logging instruments can evaluate the well completion or look behind the pipe to evaluate the formation and its fluids in the near-well bore vicinity. Production logs are playing an increasing role in modern reservoir management by providing the only means of directly identifying downhole fluid movement. This course will cover single-phase and multi-phase fluid flow in pipes, the theoretical bases of production logging techniques, production log interpretation, and operational considerations in acquiring production logs. Numerous field examples are used to illustrate the principles of production log interpretation. This program is comprised of the skill modules listed on the COURSE CONTENT tab. Each module is approximately 4 -8 hours of self-paced or virtual instructor-led activities. |
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Designed For: Petroleum and drilling engineers and managers, reservoir engineers, subsurface engineers, production engineers/technologists, petrophysicists, log analysts, and anyone interested in understanding production logs and cased-hole surveys. |
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You Will Learn: PRODUCTION LOGGING WELLSITE AND DOWNHOLE ENVIRONMENT The goal of production logging is to obtain an accurate interpretation of downhole tool measurements of fluid holdups and fluid velocities. Achieving this goal requires an understanding of the equipment used at the wellsite to make these measurements and the equipment used to deploy the tools downhole. It is important to know where the tools are in the well with relation to the well components described in the well schematic. Because most production logging tools only measure what is inside the innermost casing string, it is also necessary to know when the primary cement job may be seriously degrading permitting flow behind pipe. This module covers wellsite equipment, gamma ray, casing collar and depth measurements, and acoustic methods to determine cement quality behind pipe. You will learn:
CONVENTIONAL PRODUCTION LOGGING: TEMPERATURE AND SINGLE-ELEMENT SPINNERS The goal of production logging is to obtain an accurate interpretation of downhole tool measurements of temperature, pressure, fluid holdups, and fluid velocities to determine flow rates of each phase. Achieving this goal requires understanding the measurements made by various production logging tools and how these tools make those measurements. This module focuses on interpretation of single-phase flow. It covers temperature logs and single-element spinner-type flow meters and how to use them to determine flow rates for single-phase flow. You will learn:
CONVENTIONAL PRODUCTION LOGGING: TWO-PHASE FLOW The goal of production logging is to obtain an accurate interpretation of downhole tool measurements of temperature, pressure, fluid holdups, and fluid velocities to determine flow rates of each phase. These measurements provide the only way to know for sure what is happening downhole. Achieving this goal requires understanding the measurements made by various production logging tools and how these tools make those measurements. This module focuses on interpretation of two-phase flow. It covers pressure, differential pressure, capacitance, focused gamma fluid density, non-focused gamma, and backscattered gamma holdup measurements, the definition and description of two-phase flow regimes, and how to use them to determine flow rates for two-phase flow. You will learn how to:
PRODUCTION LOGGING IN HIGH ANGLE/HORIZONTAL WELLS The goal of production logging is to obtain an accurate interpretation of downhole tool measurements of temperature, pressure, fluid holdups, and fluid velocities to determine flow rates of each phase. These measurements provide the only way to know for sure what is happening downhole. This module focuses on interpretation of multiple-phase flow in high-angle to horizontal wells. Basic flow regime principles are reviewed and the effects on flow regime due to increasing well deviation are discussed. Because high-angle flow tends to be stratified in most cases, array logging tools that make multiple measurements across the wellbore profile are introduced. Two basic approaches for calculating multiple-phase flow rates in high-angle wells are presented. You will learn:
ADVANCED NUCLEAR PRODUCTION LOGGING The goal of production logging is to obtain an accurate interpretation of downhole tool measurements of temperature, pressure, fluid holdups, and fluid velocities to determine flow rates of each phase. These measurements provide the only way to know for sure what is happening down hole. This module focuses on interpretation of multiple-phase flow in vertical to high angle and horizontal wells using advanced nuclear production logging techniques. Pulsed neutron capture, pulsed neutron spectroscopy, and oxygen activation measurement principles are reviewed with emphasis on those measurements that have production logging applications. Unlike conventional and array production logging measurements that can only sense what is happening inside the casing, nuclear measurements can also sense some of what is happening behind the casing. You will learn:
SPECIAL PURPOSE PRODUCTION LOGGING This module covers the measurement principles of three types of special purpose production logging instruments: noise logs, radioactive tracer surveys, and fiberoptic temperature measurements. Upon completion of this module one should know how to run and interpret a conventional noise logging tool, plan, run, and interpret data from a radioactive tracer survey, and use data in conjunction with well production data to interpret fiber optic temperature measurements. One should also know how to design and execute a complete cased-hole and production logging program for a given well. You will learn how to:
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Course Content:
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Instructors: DR. DALE FITZ has 36 years of experience as a petrophysicist doing open-hole and cased-hole log interpretation and production logging in both exploration and production environments. He spent over 34 years working for ExxonMobil. About half of this time was spent doing research on shaly sand petrophysical methods, cased-hole nuclear logging techniques, and high-angle/horizontal well logging techniques. The remaining time was spent in various exploration and production departments providing petrophysical support for extended reach high-angle/horizontal drilling programs and providing cased-hole nuclear and production logging support for difficult production challenges world-wide. During this time, he was heavily involved in developing and delivering training worldwide to ExxonMobil and affiliates on basic well logging, cased-hole nuclear logging, and production logging. Since retirement, Dale has been heavily involved in volunteer work for the Boy Scouts of America but has also been developing new training for cased-hole nuclear logging and production logging courses. He has a BS in Chemistry from Oklahoma State University and a PhD in Physical Chemistry from the University of Illinois. He held postdoctoral fellowships at the Max Planck Institut for Stromungsforschung in Gottingen, Germany and the University of Toronto, in Canada. He was also a visiting assistant professor in chemistry at the University of Houston. He has 27 publications in chemistry, 14 publications in the open-literature in petrophysics, and has numerous internal publications, memos, and training manuals with ExxonMobil. He is a member of the Society of Petrophysicists and Well Log Analysts and the Society of Petroleum Engineers. At various times in the past he has served as an assistant editor for petrophysical publications for both of these professional societies. In-House Course Presentations All courses are available for in-house presentation to individual organizations. In-house courses may be structured the same as the public versions or tailored to meet your requirements. Special courses on virtually any petroleum-related subject can be arranged specifically for in-house presentation. For further information, contact our In-House Training Coordinator at one of the numbers listed below. Telephone 1- 832 426 1234 Facsimile 1- 832 426 1244 E-Mail inhouse@petroskills.com Public Course Presentations How to contact PetroSkills: 1-800-821-5933 toll-free in North America or Telephone 1-918-828-2500 Facsimile 1-918-828-2580 E-Mail registrations@petroskills.com Internet www.petroskills.com Address P.O. Box 35448, Tulsa, Oklahoma 74153-0448, U.S.A |