Petrophysical evaluation of well log data has always been crucial for identification and assessment of hydrocarbon bearing zones. Reservoir quality is defined by using petrophysical analyses coupled with petrographic observations, capillary pressure, and diagenetic studies, in addition to unconventional logs such as borehole images, nuclear magnetic resonance logs, elemental spectroscopy measurements, and spectral GR interpretation. This session will give a complete methodology and workflow for using all available petrophysical data to evaluate LQR.

The discovery of Nuclear Magnetic Resonance (NMR) phenomenon spawned innovative diagnostic technologies that facilitated advancements in a wide range of disciplines including medicine, chemistry and earth sciences. Geologists observed that in a manner similar to Magnetic Resonance Imaging (MRI) that revolutionized medical imaging, NMR measurements illuminate pore-filling fluids inside a porous rock and provide unique insight to porosity, pore size and/or fluid viscosity without any damage to the sample. For the oil and gas industry, this sensor technology has become everyday reality with the development of NMR well-logging tools. Since the first modern NMR logs in the early 1990s, NMR logging enhanced formation evaluation in complex reservoir rocks such as heterogeneous carbonates and silty sands and enabled reservoir fluid characterization in the presence of fresh water, heavy oil or variable gas-oil ratio. More recently, with the development of logging-while-drilling (LWD) tools, NMR petrophysics is available for real-time reservoir navigation decisions.

Moving their directional drillers into their Houston real-time remote operations centers has improved drilling efficiency for two of the top shale producers. This paper presents an interdisciplinary approach to the description of tectonic dislocations made on the basis of interpretation of seismic data, petrophysical analysis of well-logging data in horizontal wells, and inversion of a multifrequency propagation tool. This work presents a systematic geosteering work flow that automatically integrates a priori information and real-time measurements to update geomodels with uncertainties and uses the latest model predictions in a decision-support system (DSS). The use of intelligent software is on the rise in the industry and it is changing how engineers approach problems. A series of articles explores the potential benefits and limitations of this emerging area of data science.

The formation of scale deposits upon tubing, casing, perforations, and even on the formation face itself, can severely constrict fluid flow and reduce the production rate of oil and gas wells. In addition to lost production, a considerable portion of the workover budget is expended in efforts to remove these deposits and prevent their recurrence. As a consequence, scale prevention has been and continues to be a common exercise and is successfully applied in many areas. Although the principles behind scale formation and prevention are generally well understood, there are many new forms of scale prevention and new scale inhibitor application technologies. Some people consider scale prevention a mature subject matter area with "nothing new under the sun," but in fact there are many new developments, some of which will be highlighted in this presentation. This presentation will review the major elements that normally comprise any effort aimed at the successful control of scale deposition, starting with scale identification, followed by scale prediction, inhibition, and removal. Several case histories will illustrate the application of these scale control techniques in oil production facilities. Scale formation can be a show stopper, but if properly managed, scale can be prevented economically. Charles Hinrichsen earned a BS degree in Chemistry from the State University of New York at Stony Brook and an MS and PhD in Chemistry from Cornell University. He worked at Texaco and later Chevron for forty years at Chevron's Energy Technology Company as a Chemical Treating Specialist. From 1998–2001 he coordinated Texaco's chemical operations in Angola, West Africa, and from 2001–2003 he served as Senior Corrosion and Chemical Treating Engineer in Wafra, Kuwait.

This paper discusses a study undertaken to gain better understanding of nuclear magnetic resonance (NMR) characteristics of volcanic reservoirs with different lithologies. This paper compares the results of gas identification and lithology identification using pulsed-neutron spectroscopy in openhole and casedhole environments. Coring is essential to offshore exploration programs—but sometimes cores are taken from the wrong formation or return to surface in poor condition. One firm thinks it can solve these costly issues with a first-of-a-kind coring device that uses logging instruments that add accuracy and integrity. The rising cost of fracturing offers a significant incentive for finding ways to avoid unproductive rock.

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This paper presents the results of a 3-year project aimed at mass field implementation of ultrahigh-speed (UHS) electric submersible pump (ESP) systems in western Siberia. This paper presents an interdisciplinary approach to the description of tectonic dislocations made on the basis of interpretation of seismic data, petrophysical analysis of well-logging data in horizontal wells, and inversion of a multifrequency propagation tool. Russia’s need to continue expanding the oil and gas business is pushing it to look east for more production and markets. But everywhere it turns there is stiff competition in a world awash in oil and gas. Russia has looked to the east to find more oil and gas, growing markets and investor support, allowing it to shrug off the global slump and trade sanctions.

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Practical Wireline Formation Testing and Sampling Course Description This course is designed for petro physics and reservoir engineers who are involved in formation sampling and testing. Upon completion of this course, participants will become familiar with: The latest techniques and tools available How to perform pressure interpretation and acquisition Sampling knowledge (best practices) What to do to get a representative sample and how to design a tool string for a given problem Topics:   Pressure Acquisition Sampling Hardware Review Probes Fluid Analyzers Sample Chambers Pump Advanced Applications PVT Properties Prediction Formation Static Temperature Effective Permeability Compaction Monitoring Why Attend To learn about reservoir characterisation using formation testers, to be able to interpret pressure and fluid properties, and to design a successful sampling and testing operation. Who Attends This class is designed for geophysicists, reservoir engineers and any engineers involved or interested in wireline formation sampling and testing including petro physical engineers, production engineers and testing engineers. Special Requirements There are no special requirements for this course. It is recommended for participants to bring their own examples to contribute to course discussions.