We will meet once a week and focus on the fundamentals of well logging methods, including electrical, nuclear, and acoustic measurements. The excercises at the back of the book were a good idea that was implemented poorly. I want to let you know about my 10day, emailbased course for you to start learning some hacks on well log analysis. The ability to interpret a log lies in recognizing the significance of each measurement. An exemple of how to make a quick interpretation of well logs using python, matplotlib, pandas and a few predefined petrophysical functions. Although the well is highly deviated the well drops off to ca. The simplest radioactive method in geophysical well logging is the natural gamma log.
Mar 20, 2017 this feature is not available right now. The spontaneous and gammaray logs are displayed on the left side of the log. Scribd is the worlds largest social reading and publishing site. My first mentor, ko ko kyi, first taught me how to read and interpret well logs just by looking at the well log patterns. However, a more thorough knowledge of geophysicallog response would be helpful in the use of this report and the described process of aquifer analysis through geophysicallog interpretation. Chapter 1 basic well log analysis by george asquith and. The log starts at 1,850 in the big lime and big injun formations. It reminds me of the log interpretation book you can download from the schlumberger website for free. Introduction this course is intended for people who are interested in learning more about well logs. It is important for many petroleum professionals to be able to understand well logs and what they mean.
Well log interpretation training course petroskills wli. The value of the measurement is plotted continuously against depth in. These independent methods can be used to calibrate log analyses. Basic logging concepts and principles of metrology. So, there you go the six ko ko rules in well log interpretation. Before you enroll in this course, we recommend you take the basic log analysis course. These estimated quantities are used to evaluate a zone and to determine whether a well completion attempt is warranted. In excercise 1 you get the impression that the authors were looking at slightly different logs than those presented, given the partial answers and comentary shown. Published in 1991, log interpretation principlesapplications provides a thorough background of log interpretation. Basic relationships of well log interpretation introduction this chapter provides a general introduction to well logging principles and methods that will be used throughout the book. These logging these logging tools record the level of naturally occurring ga. Alternate methods for determining water saturation include analysis of cores cut with lowinvasion oilbased muds obms and single well chemical tracer swct tests. An interdisciplinary seminar for all earth scientists and engineers giving practical understanding of the principles and interpretation of geophysical well logs in research applications. Determining the porosity and true resistivity of a zone is the first step in converting the raw log data into estimated quantities of oil, gas, and water in a formation.
Basic well log interpretation chemistry physical sciences. Basic well log interpretation pdh online pdhonline course k2 3 pdh. A well log is a record of the well depth verses some physical parameter of the well. The course will teach the basic petrophysical principles as well as techniques and procedures to interpret. Here you can download file basic well log analysis, 2nd edition pdf. The mean pef, density and neutron values for the kolje formation in the apollo well were plotted into a diagram for typical log responses of various lithologies by mondol 2015, where they all. Want to be notified of new releases in petroggbasic wellloginterpretation. These logging these logging tools record the level of naturally occurring ga mma ray emissions from the rocks. Basic knowledge well log interpretation basics of measurement operation, data acquisition, data processing and correction.
It is arranged by the interpretation goals of the data, rather than by the. This interactive, applicationsdriven 5day advanced well log interpretation training course will highlight the techniques and principles of advanced well log interpretation for oil industry professionals who needs to deal with wireline andor lwd logs in their daily job. We will go through each of the components of the log and explain what each one mean. Purchase of an open document does not constitute license for republication in any form, nor does it allow web posting without prior written permission. Well logging, also known as borehole logging is the practice of making a detailed record a well log of the geologic formations penetrated by a borehole. Learning basic and advanced methods and techniques for log interpretation. Logging objectives, fields of application logging environment, well pathes, temperature and pressure well geometry and caliper logs depth measurements and depth control drilling process, mud cake and invasion.
Click on document basic well log analysis, 2nd edition pdf. Basic well log interpretation with python, pandas, matplotlib. Advanced well log interpretation training course in dubai. Join our community just now to flow with the file basic well log analysis, 2nd edition pdf and make our shared file collection even more complete and exciting. Basicwellloginterpretationbasic well log interpretation. Advanced well log analysis shortcourse applied stratigraphix. Perhaps the best way to begin a study of logging is. Basics of well log interpretation cese intermediate log interpretation.
A best fit line drawn through the points intersects the representing. Basic well log analysis is a general introduction to common openhole logging measurements, both wire line and mwdlwd, and the interpretation of those measurements to determine the traditional analytical goals of porosity, fluid saturation, and lithologymineralogy. Provides a permanent record of one or more physical measurements as a function of depth in a well bore. The last well log contains three porous and permeable zones, located from 300 to 303, 308 to 310 and 338 to 340 meters depth. The various openhole services offered by schlumberger are discussed in some detail, together with essential methods of interpretation and basic applications. Advanced well log analysis shortcourse course details this is a course designed for geologists, geophysicists, petroleum engineers and other industry professionals who are interested to learn some advanced log interpretation techniques. Roberto peveraro roberto peveraro is a petroleum geoscience and engineering consultant with over 38 years experience in the oil industry, including senior technical management positions in formation evaluation, rock. This second edition of basic well log analysis delivers a great impact on training and selftraining along with superior workbook exercises, newer measurements, borehole imaging, and nuclear magnetic resonance in separate chapters, all directed to provide a guide through the lengthy and sometimes ambiguous terminology of well logging and. Log derived data can be used to estimate permeability of a formation, but only if the formation is at irreducible water saturation. It goes without saying that the rules wont work all the time. Open hole study guide nduction logs electrolog laterolog and dual laterolog flushed zone resistivity devices spontaneous potential log gamma ray log compensated densilog acoustic logs neutron logs. Log interpretation principlesapplications schlumberger. The log may be based either on visual inspection of samples brought to the surface geological logs or on physical measurements made by instruments lowered into the hole geophysical logs. At the end of the seminar the participant will be able to perform a full interpretation and will know the uses and applications of several advanced open hole and cased hole logs.
Its just a common sense, stepbystep approach in interpreting any well logs. Logderived data can be used to estimate permeability of a formation, but only if the formation is at irreducible water saturation. Amsterdam, elsevier science publishers, developments in. Incase you could not tell, this appears to have potential to be a productive zone. Chapter 1 basic relationships of well log interpretation george asquith texas tech university lubbock, texas, u. These subjects are now well covered by company manuals by mr. This three hour online course discusses well logs and how to interpret them. The flow charts included in this chapter figures 7.
The text discusses how different log types measure various. Wireline and loggingwhiledrilling lwd log quality control. Daniel krygowski landmark graphics austin, texas, u. Basic well log interpretation a pdh online course for. The resistivity logs are in the middle and the porosity logs are on the right. Plot the pressure readings against depth and interpret the resultant pressure profile. Jun 29, 2012 basic evaluation of south louisiana well log. This is a course designed for geologists, geophysicists, petroleum engineers and other industry professionals who are interested to learn some basic log interpretation techniques. It is arranged by the interpretation goals of the data, rather than by the underlying physics of the. Succeeding chapters 2 through 6 introduce the reader to specific log types.
Jun 26, 2016 so, there you go the six ko ko rules in well log interpretation. An overview of the basic function and theory of operation of several geophysicallogging devices is presented here. The value of the measurement is plotted continuously against depth in the well. Anyone taking this course should be somewhat familiar with oil or gas well design and terminology. Basic well log interpretation with python, pandas, matplotlib petroggbasic wellloginterpretation. Basic well log interpretation free download as powerpoint presentation. Basic well log analysis geoscienceworld books geoscienceworld. It is arranged by the interpretation goals of the data, rather than by the underlying physics of the measurements.