Abstracts will be accepted for both oral and poster presentations. In the past halfcentury, the study of fluid flow and transport processes in fractured porous media has received great attention and has. Access study documents, get answers to your study questions, and connect with real tutors for ench 649. The challenge of estimating recovery from naturally fractured. So talking about fractured reservoirs in general is not good enough. Naturally fractured reservoirs exist throughout the world and represent significant amounts of oil and gas reserves, water, and other natural resources on earth. Naturally fractured reservoirs fluid flow in petroleum.
The use of the dualporosity approach for the modeling of naturally fractured reservoirs has become widely accepted in the oil industry. Characterisation of naturally fractured reservoirs using geological. This book addresses some of the challenges and advances in knowledge, approaches, concepts, and methods used to characterize the interplay of rock matrix and. The pressure buiidup performance has been examined insomedetait. Geologic and engineering aspects of naturally fractured. Naturally fractured reservoirs are different from conventional unfractured reservoirs. From the above, we can see that an e cient method for determining water in. Pdf advances in the study of naturally fractured hydrocarbon. Naturally fractured reservoirs, 2nd edition paperback january 1, 1995 by dr. Hydraulic fracturing in naturally fractured reservoirs is not recommended because the created fracture will propagate parallel to the open fractures in the reservoir instead of intersecting them. Roberto aguilera author see all 2 formats and editions hide other formats and editions.
Article recovery factors and reserves in naturally fractured reservoirs. Aguilera r, naturally fractured reservoirs, pennwell books. Naturally fractured reservoirs 2nd edition free ebook download as pdf file. This course covers geologic and engineering concepts, methodology, and technology used to characterize, evaluate, and manage naturally fractured reservoirs. Naturally fractured reservoirs are elusive systems to characterize and difficult to engineer and predict. Drilling and completion strategies in naturally fractured. Spe 84590 presented at the spe technical conference and exhibition held in colorado, 5 to 8 october. Aguilera5 classified the naturally fractured reservoirs in types a, b and c.
To improve this situation, based on a mathematical model of naturally fractured reservoirs, a new global search algorithm is proposed to calculate water in. In the past halfcentury, the study of fluid flow and transport processes in fractured porous media has received. In standard handbook of petroleum and natural gas engineering third edition, 2016. Methods are presented for detecting and evaluating naturally fractured reservoirs from porosity sonic, neutron, and densityand resistivity logs. Natural fractures exist practically in all reservoirs, dividing the reservoir rock in pieces, called matrix blocks. Pdf article recovery factors and reserves in naturally. Controls on recovery factor in fractured reservoirs. 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. Applications and limitations of geologic and engineering procedures and tools are discussed. However, there are no panaceas, and tools and methods that work well in one reservoir can.
In naturally fractured reservoirs nfr, fractures often constitute the main het. Find all the books, read about the author, and more. The behavior of naturally fractured reservoirs joi%warren p, j, rqot members aime abstract. Naturally fractured reservoirs, 2nd edition aguilera, dr.
This fiveday course covers reservoir engineering, well testing, and simulation aspects of naturally fractured reservoirs. Naturally fractured reservoir an overview sciencedirect topics. Textbook series natural fractured reservoir engineering. Naturally fractured reservoirs exist throughout the world and represent. Naturally fractured reservoirs aguilera, roberto on. Naturally fractured reservoirs present a production paradox. Formation evaluation of naturally fractured reservoirs author roberto aguilera link web page. Pdf naturally fractured reservoirs, within which porosity, permeability pathways andor impermeable. This publication deals exclusively with naturally fractured reservoirs, and includes many subjects usually treated in separate volumes. Aguileras course on naturally fractured reservoirs has become highly successful worldwide. Aguilera is a distinguished author of the journal of canadian petroleum technology 1993 and 1999, a recipient of the outstanding service award 1994 and the distinguished service medal 2006 from the petroleum society of cim, and a society of petroleum engineers spe distinguished lecturer on the subject of naturally fractured reservoirs for the 20002001 season. Naturally fractured reservoirs at university of calgary.
Reserves estimation of fractured reservoirs petrowiki. The deadline for submitting abstracts is 20 october 2019. The definition that we think is most appropriate in the context of hydrocarbon exploration is that of landes et al 1960. They are also notorious for early gas or water breakthrough. Pdf characterization of naturally fractured reservoirs. Pressure response in a naturally fractured reservoir showing ideal dual porosity behavior. There are many logging tools and many methods that can be used for detection and evaluation of naturally fractured reservoirs see aquilera. In this paper i provide general information dealing with recovery estimates and reserves in naturally fractured reservoirs. Consequently, a synergetic approach integrating geologic models, logs, cores, outcrops, and well testing is the only sound procedure for evaluating naturally fractured reservoirs. Carbonate naturally fractured reservoir is a multiporous system that contain microfractures, fractures, vugs, macrovugs, matrix, type of fractures network. Introduction naturally fractured reservoirs have been studied intensively during the hat 10 years in the geologic and engineering fields. Aguilera is a distinguished author of the journal of canadian petroleum technology 1993 and 1999, a recipient of the outstanding service award 1994 and the distinguished service medal 2006 from the petroleum society of cim, and a society of petroleum engineers spe distinguished lecturer on the subject of naturally fractured reservoirs for the 20002001. Fractured reservoir an overview sciencedirect topics. Abstracts should be submitted via the eage website using the downloads template.
Recovery factors and reserves in naturally fractured. Coauthor of fractured reservoir analysis, an aapg school. Natural fractures, which are part of the secondary porosity, can be classified as tectonic, regional, and diagenetic aguilera, 1988. Field examples and case studies demonstrate the importance of integrated geologic and. They are heterogeneous in type and consist of matrix blocks separated from one another by the fracture system as shown in figure 71. Recovery not all fractured reservoirs are the same. Geologic analysis of naturally fractured reservoirs. Recognizing naturally fractured reservoirs petrowiki. Well test analysis of naturally fractured reservoirs roberto aguilera, spe, servipetrol ltd. By roberto aguilera naturally fractured reservoirs by roberto aguilera this book deals exclusively with naturally fractured reservoirs and includes many subjects usually treated in separate volumes. Naturally fractured reservoirs have been classified according to the relative contribution of the matrix and fractures to the total fluid production. Well production heterogeneity is a characteristic of most naturally fractured reservoirs. Analysis of naturally fractured reservoirs from conventional. Petrophysical characterization of carbonate naturally.
Yushu wu, in multiphase fluid flow in porous and fractured reservoirs, 2016. Because they must be incorporate into the numerical model of simulation the results of the petrophysical characterization, it is conceptualized like a model of double porosity. The methods, illustrated with stepbystep examples, allow calculation of fracture tmnsmissivity, storage capacity coefficient, skin, size of matrix blocks, frscturi porosity. Naturally fractured reservoir an overview sciencedirect. Naturally fractured reservoirs nfrs are defined as reservoirs where. They include reservoirs with low hydrocarbon recovery. Naturally fractured reservoirs university of calgary. It is written for students, reservoir geologists, log analysts and petroleum engineers. The paper is intended for the general interest reader who is not a specialist in the field. It is important to establish some basic criteria for recognizing when fractures are an important element in reservoir performance and to recognize the nature and performance characteristics of a naturally fractured reservoir. The behavior of naturally fractured reservoirs joi%warren p, j, rqot members aime abstract an idealized model has been developed for the purpose of studying the characteristic behavioroja permeable medium which contains regions which contribute sigizificantly to tbe pore volume o. Practical aspects of simulation of fractured reservoirs 08012003 2003, james r.
Methods are presented for matching observed pressure data during dcawdown or buildup tests. Formation evaluation of naturally fractured reservoirs. Introduction to naturally fractured reservoirs tim wynn tracs international ltd. This study presents a new geostatistics modeling methodology for the purpose of achieving the following three objectives.
Naturally fractured reservoirs training course petroskills fr. A fractured reservoir is one in which naturally occurring fractures either have or are predicted to have a significant effect on reservoir fluid flow in the form of 1 increased reservoir permeability, 2 increased porosity, andor 3 increased permeability anisotropy. The original idealized model assumes that the fracture is the primary conduit for flow, whereas the matrix acts. The applied study of naturally fractured reservoirs seeks to constrain this uncertainty by developing new understanding, and is necessarily a broad, integrated, interdisciplinary topic. Analysis of naturally fractured reservoirs from conventional well logs includes associated papers 6420 and 6421 r aguilera journal of petroleum technology 28 07, 764772, 1976. It is shown that the porosity exponent of a naturally fractured reservoir is smaller than the porosity exponent of the matrix. Characterization of naturally fractured reservoirs article pdf available in spe reprint series spe 69538 march 2001 with 1,474 reads how we measure reads. A highly practical edition, naturally fractured reservoirs is written for students, reservoir. Buy naturally fractured reservoirs by roberto aguilera online at alibris.
Hydraulic fracturing of naturally fractured reservoirs. Gilman, page 4 of 35 with all these issues, there may appear to be little hope of. This course covers geologic and engineering concepts, methodology, and technology used to characterize, evaluate, and manage naturallyfractured reservoirs. In the past halfcentury, the study of fluid flow and transport processes in fractured porous media has received great attention and has been one of the most active areas in. 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 pdf free download epdf. At the university of calgary, he performs research and lectures on the. The matrix blocks are made of the original rock that was present before fracturing took place. Bunger csiro earth science and resource engineering ian wark laboratory melbourne, victoria, 3168, australia, rob.
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