Abstract due to complexity associated to petrophysical characterization of the porosity in naturally fractured reservoirs, a methodology to discretize it in four main systems was developed. Amazon price new from used from hardcover please retry. Naturally fractured reservoirs 2nd edition free ebook download as pdf file. On the other hand, they represent some of the largest, most productive reservoirs on earth.
Introduction conventional reservoir engineering techniques and naturally fractured reservoirs do not mix well. There are many logging tools and many methods that can be used for detection and evaluation of naturally fractured reservoirs see aquilera. Numerous and frequentlyupdated resource results are available from this search. Naturally fractured reservoirs present a production paradox. Predicting reservoir fracture spacing and intensity. To develop such reservoirs it is necessary to obtain the best understanding possible of the fracture network and its impact on the fluid flow within the reservoir, using the. Textbook series natural fractured reservoir engineering. Yushu wu, in multiphase fluid flow in porous and fractured reservoirs, 2016. This course covers geologic and engineering concepts, methodology, and technology used to characterize, evaluate.
Fractured reservoirs contain a significant proportion of the global hydrocarbon reserves. Pdf naturally fractured reservoirs, within which porosity, permeability pathways andor impermeable. The best known attempts at simple continuum models are the dual porosity approaches for naturally fractured reservoirs aguilera, 1980. Fractured reservoir an overview sciencedirect topics.
Nelson 1 identifies four types of naturally fractured reservoirs. This article is based on crains analyzing fractured reservoirs by e. Naturally fractured reservoirs, 2nd edition paperback january 1, 1995 by dr. Spe member price usd 45 naturally fractured reservoirs present unique and specialized challenges to hydrocarbon extraction. There are large oil reserves in fractured reservoirs, including in the middle east and in the north sea. Maximizing economic recovery from naturally fractured reservoirs is a complex process. They include reservoirs with low hydrocarbon recovery.
Hydraulic fracturing of naturally fractured reservoirs. Naturally fractured hydrocarbon reservoir simulation by. Naturally fractured reservoirs pdf free download epdf. Fracture porosity of naturally fractured reservoirs onepetro. In fact, for a model to precisely predict the all behaviors of a physical system, the model would need to be. They analyzed the e ects of the storativity ratio and interporosity. Oclcs webjunction has pulled together information and resources to assist library staff as they consider how to handle. Aguilera provides guidelines for estimating re in fractured reservoirs, classifying fractured reservoirs by pore type and storage ratiothe relative amount of storage in matrix vs. Naturally fractured reservoirs fluid flow in petroleum. Carbonate reservoirs are often dual porosity systems with matrix s.
Recovery not all fractured reservoirs are the same. Naturally fractured reservoirs aguilera, roberto on. Formation evaluation of naturally fractured reservoirs. Geological analysis of naturally fractured reservoirs. Aguilera5 classified the naturally fractured reservoirs in types a, b and c. A large proportion of the worlds oil and gas is produced from fractured reservoirs, with new discoveries continuing to be made and put into development. Natural fractures, adverse wettability and complex matrix heterogeneity are all uncertain and can all negatively impact upon recovery. Can we help you find and develop fractured reservoirs. Pdf though matrix and secondary porosity permeabilities of a naturally fractured reservoir are. For fractured reservoirs with most or all the storage in the fracture system, recovery is generally via depletion plusminus fracture compressibility plusminus aquifer or injection water ingress. In this paper i provide general information dealing with recovery estimates and reserves in naturally fractured reservoirs. This book addresses some of the challenges and advances in knowledge, approaches, concepts, and methods used to characterize the interplay of rock matrix and.
Aguilera, r naturally fractured reservoirs, pennwell. This publication deals exclusively with naturally fractured reservoirs, and includes many subjects usually treated in separate volumes. For naturally fractured reservoirs, roberto aguilera 29 established an unsteady state water. Reserves estimation of fractured reservoirs petrowiki. Fractured reservoirs geoscienceworld books geoscienceworld.
Fractured carbonate reservoirs a geological point of view. It is written for students, reservoir geologists, log analysts and petroleum engineers. The challenge of estimating recovery from naturally fractured. Many reservoirs contain a network of interconnected, naturally occurring fractures, which provide most of the reservoirscale permeability. Ideally, we should consider different reservoir concepts encapsulated in a large ensemble of reservoir models to quantify the impact of these and other. Their complex behaviour during production has traditionally proved difficult to predict, causing a large degree of uncertainty in reservoir development. Naturally fractured reservoirs roberto aguilera on. Pdf characterization of naturally fractured reservoirs. Naturally fractured reservoirs hardcover jan 1 1995. Characterization of fracture networks is a pragmatic process that relies heavily on experience and empiricism and very little to. Formation evaluation of naturally fractured reservoirs author roberto aguilera link web page. Pressure response in a naturally fractured reservoir showing ideal dual porosity behavior.
Gilman, page 4 of 35 with all these issues, there may appear to be little hope of getting a unique answer. Do not copy or distribute in any form without explicit permission. So talking about fractured reservoirs in general is not good enough. The challenge of estimating recovery from naturally fractured reservoirs. Geologic and engineering aspects of naturally fractured. Naturally fractured reser voirs 2nd edition free ebook download as pdf file. Flow diagnostics for naturally fractured reservoirs. Characterization of naturally fractured reservoirs article pdf available in spe reprint series spe 69538 march 2001 with 1,470 reads how we measure reads. Schlumberger uses a unique combination of modeling and visualization techniques to simulate fracture properties. Bunger csiro earth science and resource engineering ian wark laboratory melbourne, victoria, 3168, australia, rob. Benefiting from 15 years of research work and numerous success stories, fracaflow is the most advanced package for fractured reservoir characterization, modeling and calibration available on the market. Fractured reservoirs make up some 70 per cent of the oil reserves on earth but are very poorly understood.
Petrophysical characterization of carbonate naturally. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. Fractured reservoirs geology of carbonate reservoirs. In the past halfcentury, the study of fluid flow and transport processes in fractured porous media has received. Roberto aguilera author see all 2 formats and editions hide other formats and editions.
Buy naturally fractured reservoirs by roberto aguilera online at alibris. Recovery factors and reserves in naturally fractured reservoirs. This conference will explore the many ways in which the geology of fractures is fundamental to the understanding of fluid flow in the subsurface, and hence to predicting and monitoring reservoir performance. Recovery factors and reserves in naturally fractured. Discretization and gridding in reservoir simulation 2.
Aguilera r, naturally fractured reservoirs, pennwell books. These prospects are harder to understand and predict than conventional. Typical type1 naturally fractured reservoirs are the amal field in libya, edison. Pdf advances in the study of naturally fractured hydrocarbon. Buy naturally fractured reservoirs 2nd revised edition by aguilera, roberto isbn. Natural fractures, which are part of the secondary porosity, can be classified as tectonic, regional, and diagenetic aguilera, 1988. The challenge of estimating recovery from naturally. The paper is intended for the general interest reader who is not a specialist in the field. The productivity and development of naturally fractured reservoirs are mainly affected by the fracture net configuration.
However, there are no panaceas, and tools and methods that work well in one reservoir can. Practical aspects of simulation of fractured reservoirs 08012003 2003, james r. The applied study of naturally fractured reservoirs seeks to constrain this uncertainty by developing new understanding, and is necessarily a broad, integrated, interdisciplinary topic. Fractured reservoirs naturally fractured reservoirs present many challenges. Naturally fractured reservoir an overview sciencedirect topics. Naturally fractured reservoirs by roberto aguilera alibris. Coauthor of fractured reservoir analysis, an aapg school.
General approaches in naturally fractured reservoir simulation involve use of unstructured grids or a structured grid coupled with locally unstructured grids and discrete fracture models. Van golfracht t 1982 fundamentals of fractured reservoir engineeringdevelopments in petroleum science, no. Crains petrophysical handbook fractured reservoir basics. Natural fractured reservoir engineering phdg textbooks in preparation, intended to be issued during 2015. Naturally fractured reservoirs nfrs are defined as reservoirs where. It is completed by a unique ability to model the impact of hydraulic fracturing on existing natural fractures. Naturally fractured reservoirs exist throughout the world and represent.
Reservoir fluid characterisation supplementary scripts used at the montanuniversitat up to the retirement. Naturallyfractured reservoirs the imperial college. In type 1 reservoirs, fractures provide the essential reservoir storage capacity and permeability. See all 3 formats and editions hide other formats and editions. This fiveday course covers reservoir engineering, well testing, and simulation aspects of naturally fractured reservoirs. It requires a thorough understanding of matrix flow characteristics, fracture network connectivity and fracture matrix interaction. Naturally fractured reservoirs exist throughout the world and represent significant amounts of oil and gas reserves, water, and other natural resources on earth.
Accurate fluid flow simulation in geologically complex reservoirs is of particular importance in construction of reservoir simulators. In fact, it has been estimated that about 40% of the worlds known reserves reside in naturally fractured reservoirs. For naturally fractured reservoirs, roberto aguilera 29 established an unsteady state water invasion model, taking the transient and pseudosteady interporosity. The uncertainties relating to the size of the physical structure and the fluid content of the reservoir make understanding fluid flow unpredictable. They are also notorious for early gas or water breakthrough. 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. Reliable production forecasting for fractured carbonate reservoirs is a challenge. In standard handbook of petroleum and natural gas engineering third edition, 2016. Pdf permeabilities and skins in naturally fractured reservoirs. This webpage version is the ed intellectual property of the author.
548 503 629 260 685 922 1634 601 932 1267 81 844 1296 118 858 1178 344 47 638 1015 1217 570 748 374 1228 336 878 761 1018 32 1444 1019 968 1270 717 967 306 598 871 1313 282 1049 896 1326 368 1391 781