Introduction no uncertaintyexistsina reservoir, only uncertainty in our understanding and description of it. Understanding your reservoir empowers you to better optimize its lifetime performance. May 01, 2009 reservoir characterization rock typing hydraulic flow unit 5. Seismic reservoir characterization central scotian slope study canada june 2016 pl. One category of well data includes various types of logs recorded in the borehole. In the next paper entitled characterization of a heavy oil reservoir combining multiattribute analysis and spectral decomposition for density prediction, matu in subbasin, venezuela, ruiz and aldana demonstrate the characterization of a heavy oil reservoir. Applied geostatistics for reservoir characterization. Reservoir characterization is a process for quantitatively assigning reservoir properties, recognizing geologic information and uncertainties in spatial variability. This is a workflow on carrying out detailed studies on reservoir characterization and modelling. The result of reservoir characterization is the creation of the sharedearth model. Reservoir characterization rock typing hydraulic flow unit 5. Jul 21, 2008 an accessible resource, covering the fundamentals of carbonate reservoir engineering. A model of a reservoir that incorporates all the characteristics of the reservoir that are pertinent to its ability to store hydrocarbons and also to produce them. Data types, representativeness and related uncertainty.
The result of reservoir characterization is the creation of the 3d sharedearth model. Scal data is used to support log and well test data in gaining an understanding of individual well and overall reservoir performance. He is a certified petroleum geologist and a member of the american association of petroleum geologists, where he serves as associate editor. The industrial revolution in europe and north amer. Reservoir characterization training course in dubai. Various logs are used for reservoir characterization. The main reason is the presence of fractures and faults, which control the mass and heat transport in the subsurface. The maps resulting from the seismic reservoir characterization were then used as a guide for gde maps construction. Petroleum geology and reservoir characterization of the upper. Fracture and insitu stress characterization is fastevolving as an essential part of characterizing hydrocarbon reserviors. Reservoir characterization provides critical information on the threedimensional distribution and realization of the reservoir heterogeneity and petrophysical. Reservoir characterization is the process of preparing a quantitative representation of a reservoir using data from a variety of sources and disciplines. Reservoir characterization an overview sciencedirect. Seismic attribute, reservoir characterization, thickness and porosity introduction seismic attributes have been increasingly used in both.
Introduction to oil and gas exploration and production. Part 2 covers reservoir characterization using several geoscience disciplines. The two cubes overlap in the region of annapolisg24 and crimsonf81 wells. Application of artificial neural networks to reservoir characterization. Geological models are created by geologists and geophysicists and aim to provide a static description of the reservoir, prior to production reservoir simulation models are created by reservoir engineers and use finite difference methods to simulate the flow of fluids within the reservoir, over its production lifetime. Practical reservoir engineering and characterization 1st. Reservoir models typically fall into two categories. Reservoir characterization and modeling objectives. Reservoir characterization and prediction modeling have long been among the more challenging tasks in geothermal reservoir engineering. Uncertainty analysis in reservoir characterization and. Aapg hedberg research conference on microbial carbonate reservoir characterizationconference summary and selected papers.
Important concepts and terms, ranging from additivity to geostatistics, from seal to variogram and walthers law, are covered in. Basic elements of a reservoir characterization study petrowiki. Pdf integration of geological modeling and reservoir simulation find, read and cite all the. Both supervised and unsupervised seismic facies maps have been generated at the l sand level on marathon and veritas figures 15 and 16, using the same techniques as for the h sand. The main steps of a study consist in successively building. Logs that are most relevant to seismic data are sonic, shear, and.
Reservoir characterization this paper gives an overview of the activities in geostatistics for the petroleum industry in the domain of reservoir characterization. It is a central part of the reservoir characterization teams work. However, scal measurements are more expensive, and are commonly only done on a small selected group of samples, or if a difficult strategic reservoir management. Participants to this 5day intensive reservoir characterization training course should be geologists and engineers who deal with all risked variables to decide where, when and why to drill and what is expected from this drilling on both short and long term and finally how to maximize the life and return from such drilling. Assuming the earth is isotropic, these equations are used day in and day out in the industry for reservoir characterization and to find oil and gas in the subsurface. Geostatistics has played an increasing role in both groundwater hydrology and petroleum reservoir characterization and modeling, driven mainly by the recognition that heterogeneity in petrophysical properties i. Practical reservoir engineering and characterization pdf. Naturally fractured reservoir characterization seeks to confront many of these challenges by providing an introduction to the engineering and geological character of naturally fractured reservoirs. Practical reservoir characterization expertly explains key applied sciences, ideas, strategies, and terminology in a means that permits readers in various roles to understand the ensuing interpretations and contribute to constructing reservoir characterization fashions that enhance useful resource definition and restoration even in probably the most complicated depositional environments. Reservoir characterization training course petroskills rc. Introduction of various algorithms for attribute computation, their limitations and performance strengths. Reservoir characterization an overview sciencedirect topics.
Increase your proven reserves, discover bypassed pay, reduce development time and costs, improve production rates, and rejuvenate old fields through the skills learned in this course. Reservoir characterization is a wellknown technique to obtain a better understanding of hydrocarbon bearing reservoirs by careful analysis and integration of petrophysical, seismic and core data. This has been done by using the available tools for integrating the well log and seismic data as well as the derived. The principal focus of the book, carbonate reservoir characterization, is on the use of relationships between numerical. To obtain the complete report, contact the west virginia geological survey at 304 5942331. Some publications have shown that using the pp and ps reflections in a joint inversion can increase the accuracy of the inverted parameters. Oil and gas professionals gather different sets of data to give your team a complete picture of a reservoir s capacities and hazards. This description has been simplified in order to emphasize the original techniques involved. Detailed column of the four productive zones r3, r2, ra, ri of the cambrian of hassi messaoud field. Location map of the veritas and marathon 3d cubes with the available wells. The principal goals were to assess pore level controls on reservoir quality and wireline log. Geology of carbonate reservoirs wiley online books. Petroleum geologists and hydrologists have long recognized the need to define quasi geological. Introduction to reservoir characterization ifp training.
May, 2015 reservoir characterization integrates all available data to define geometry, distribution and flow properties of a petroleum reservoir slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Traditionally, seismic reservoir characterization has aimed at the determination of reservoir thickness, pore fluid, porosity and water saturation, amongst other properties. Basic elements of a reservoir characterization study. These pdfs, call posterior pdfs, represent deductions about porosity and. Introduction seismic attributes are the main source of information about the. Hohn, editor west virginia geological and economic survey publication b45 this is a summary. Commercially available software is used in the construction, simulation and analysis of the reservoir models. Fullwaveform inversion for reservoir characterization. Petroleum geology and reservoir characterization of the. Reservoir characterization brochure kms technologies. From the seismic attribute studies and well log analysis the estimated thickness of the reservoir zone is about 12. Reservoir characterization and prediction modeling using. Pdf reservoir characterization using expert knowledge, data.
Satinder chopra the primary objective of this course is to gain an intuitive understanding of the kinds of seismic features that can be identified by 3d seismic attributes, the sensitivity of seismic attributes to seismic acquisition and processing, and how. To provide the skills and expertise to set up a reservoir characterization study taking into account all the various aspects which control subsurface opportunities and uncertainties. Seismic and geophysical services that enhance reservoir characterization and monitoring. Ahr has published 150 technical papers and abstracts. Bayesian reservoir characterization crewes research report s volume 14 2002 1. Doing that requires the most accurate measurements available from multiple sources and disciplines to prepare a superior quantitative representation of the reservoir. In this book, the geological society presents a selection of sixteen. Reservoir characterization involves calibration of the results of analysis of surface seismic data both from structural and stratigraphic inversion, to well data. Regarded as an important phase between the discovery of an oil or gas field and the reservoir management phase, to collate all the information mentioned above, reservoir characterization integrates the technical disciplines of geology, geophysics, reservoir engineering, petrophysics, economics and data management.
Seismic attribute analysis for reservoir characterization. View reservoir characterization research papers on academia. The focus is on understanding fractures in a reservoir how to determine whether fractures are important to hydrocarbon producibility, and if so. It is a central part of the reservoircharacterization teams work. This book contains 19 chapters, and begins with the geological characterization of sandstone reservoir, followed by the geological prediction of shale distribution within the. To provide a deep understanding supported by numerous case studies in different reservoir contexts. Reservoir characterization course details this is a course designed for geologists, geophysicists, reservoir engineers and production engineers who wish to develop a better understanding of the factors that influence hydrocarbon flow in their reservoirs. Understanding reservoir characterization reservoir characterization refers to a model of a reservoir that integrates important information related to the production and storage of hydrocarbons. Such classic methods invert the avo response in deterministic or stochastic fashion for elastic or reservoir parameters russell, 1988. The phrase reservoir characterization is sometimes used to refer to reservoir modeling activities up to the point when a simulation model is ready to simulate the flow of fluids. Chapter 2 introduced the basics of geostatistics for geological modeling.
Reservoir characterization is the study of reservoir properties using geologic, geophysical, petrophysical, and engineering disciplines, including uncertainty anal. Practical reservoir characterization expertly explains key technologies, concepts, methods, and terminology in a way that allows readers in varying roles to appreciate the resulting interpretations and contribute to building reservoir characterization models that improve resource definition and recovery even in the most complex depositional environments. Petroleum geology and reservoir characterization of the upper devonian gordon sandstone, jacksonburgstringtown oil field, northwestern west virginia michael e. Reservoir characterization research papers academia. Proposal on reservoir characterization petroleum reservoir. Well stimulation oil and gas production operations introduction characterization of reservoir rocks o porosity the. This work consistis at the study of reservoir characterization and quantification of uncertainties of an oil field, through the analysis of two methodologies to be applied in a practical case study. Spe member price usd 60 geostatistics is an increasingly important tool for developing an integrated reservoir description. The modern team approach to reservoir characterization describes productive zones more reliably through the integration of disciplines, technology, and data. Chapter 1 basic principles and applications of reservoir.
This has been done by using the available tools for integrating the well log and seismic data as well as the derived attributes for transforming them into the desired. It includes basic rock properties and brings back complicated technologies to first principles such that the course participants can remember how to understand modern complex logging and reservoir monitoring technologies when optimizing the recovery factor of hydrocarbon reservoirs, integration between. Reservoir characterization is an integral part of the formation damage assessment and mitigation tasks, because the magnitude and the extent of the reservoir formation damage are greatly influenced by the reservoir formation properties. Reservoir characterization schlumberger oilfield glossary. Such classic methods invert the avo response in deterministic or stochastic fashion for. The rock physics analysis showed that the acoustic impedance of the shales and.
The principal focus of the book, carbonate reservoir characterization, is on the use of relationships between numerical petrophysical data and descriptive geological processes in the construction of 3d geological and petrophysical models suitable for input into fluid simulators. Attribute expression of structure and stratigraphy in terms of tectonics and diapirism, clastic and carbonate depositional systems and geologic hazards. This type of model, created as a result of reservoir characterization,is important in four ways. The reservoir simulation in the oil industry has become the. Some publications have shown that using the pp and ps reflections in a joint. Though applied geostatistics for reservoir characterization is written to illustrate the importance of geostatistics in improving the reservoir characterization process, it does not require any prior knowledge of statistics or advanced mathematics. Proposal on reservoir characterization free download as powerpoint presentation. This book presents quantitative geosciences in three parts.
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