Carbonate reservoir characterization research laboratory rcrl rcrlsmission is to use outcrop and subsurface geologic, geophysical, and petrophysical data from carbonate reservoir strata as the basis for developing new and integrated methodologies and concepts to. A selected area within the sacroc unit platform was used for this study. The author summarizes his extensive experience in the field of. Dolphin, the new star development of the north field, one of.
The 2nd edition of carbonate reservoirs aims to educate graduate students and industry professionals on the complexities of porosity evolution in carbonate reservoirs. Note the large variation of r in the same carbonate reservoir. Identifying and classifying carbonates are crucial in two key tasks. Porosity and permeability of tight carbonate reservoir. Grammer received his phd in 1991 at the university of miamis rosenstiel school of marine and atmospheric science and has over 25 years of industryrelated experience in carbonate reservoirs, sequence stratigraphy and carbonate reservoir characterization. Fracture and carbonate reservoir characterization using. Unfortunately, there are few guidelines available for geologists and engineers characterizing and engineering naturally fractured reservoirs. Carbonate reservoir evaluation has been a high priority for researchers and oil and gas producers for decades, but the challenges presented by these highly heterogeneous rocks seem to be neverending. A geologicengineering analysis, part ii, volume 44 1st edition. This course is designed for, but not limited to, those who are directly involved with carbonate reservoir characterization, and who need a deeper understanding of the complexity and problems associated with carbonate reservoirs. Carbonate reservoir characterization an integrated approach f. Melnikova, gazpromneft stc advances and challenges of complex carbonate reservoir engineering the case of zagros object 6. Each of these pools has unique reservoir characteristics that require detailed integration of the geologicalengineering disciplines for optimum development. One principal need in petroleum recovery from carbonate reservoirs is the.
In particular, the san andres project produced characterization methods that formed the basis for a new reservoir model that the operator, amerada hess, completed in the year 2001. Integrated outcrop and subsurface studies of the interwell. First, assessment of the reservoirs paleoenvironment builds a broad understanding of likely reservoir geometry. Petrophysical characterization of carbonate naturally. Carbonate reservoir characterization request pdf researchgate. A geologicengineering analysis, part i, volume 30 1st edition.
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. Surfactant enhanced oil recovery in carbonate reservoirs. This carbonate complexity has required special treatment to characterize precisely the reservoir. Understanding carbonate reservoirs and the differences with clastic ones is vital to meaningfully evaluate the critical success factors influencing volumetrics, flow behavior and ultimate recovery in different types of carbonate reservoirs. They provide important information on subsurface reservoir geobody size, geometry, and potential connectivity, which all contribute to better reservoir characterization, mainly in highly heterogeneous siliciclastic or carbonate reservoirs that require the integration and detailed analysis of petrophysics, facies, diagenesis, geometry. Carbonate reservoir characterization using wireline logs. Unconventional carbonate reservoir characterization using sonic velocity and. Carbonate petrophysics course objective integrate across discipline and scale and timeframes wireline and lwd measurements are typically the basis for fi ld d l t d d l tifield development and depletion ultimate objective is an integrated calibrated interpretation of that dataof that data wellbore trajectory and reservoir boundaries. This is only possible if the nature of the emergence, evolution, and parameter estimation of high grade reservoir rocks at great depths is known and a theory of their forecast is developed. Carbonate reservoir characterization research laboratory. Carbonate reservoir characterization and simulation. Carbonate reservoir characterization and modeling from outcrop analogues.
Excellent carbonate reservoir rocks can pass laterally into effective carbonate seals in trap geometries that are generally not translatable to clastic systems. Carbonate reservoir characterization using the cementation. Understanding these reservoirs requires the acquisition and analysis of vast amounts of data, and usually begins with detailed, footbyfoot characterization of the fracture and matrix systems. Jerry lucia publications july 8, 2008 business address. Unconventional carbonate reservoir characterization search 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. The diagenetic history of a carbonate reservoir can be complex, involving various phases of cementation, dissolution, compaction, and mineral transformation. Carbonate reservoir characterization using the cementation factor. An integrated approach to characterization and modeling of.
The book focuses on a rock based approach for the integration of geological. Over 60 percent of world oil production is currently associated with carbonate reservoir rocks. Carbonate reservoir characterization a geologicengineering analysis, part ii details this second volume on carbonate reservoirs completes the twovolume treatise on this important topic for petroleum engineers and geologists, and together they form a complete, modern reference to the properties and production behaviour of carbonate petroleum. Vitaly fedorenko, stc khimart acid treatments of wells with complex reagents. First, assessment of the reservoirs paleoenvironment builds a. Carbonate reservoir porosity and permeability change impact on productions dependence on depression 5.
Carbonate reservoirs present a number of specific characteristics posing complex challenges in reservoir characterization, production and management. Override in eor of carbonate reservoirs medwin publishers. Characterization, petrography, and static geologic modeling. Learn effective methods in predicting reservoir performance through an integrated approach across exploration disciplines course objectives specially designed for over 40 years of international experience in oil and gas exploration and development specialized in carbonate sedimentology, reservoir characterization and 3d modeling.
This method integrates the quantitative reservoir characterization. Reservoir characterization and modeling of a carbonate reservoir. To relate these principles to real cases, six typical carbonate pools are described and schematically illustrated in part ib. Finally, commonlyused approaches like defining nettogross ratios and porosity cutoffs often do not work to properly characterize carbonate reservoirs unless the evaluation has a. The main objective of this paper is to propose a workflow to aid in threedimensional quantitative carbonate reservoir characterization of the quissama formation macae group in the pampo field of the campos basin, offshore brazil. Carbonate reservoir characterization pdf free download epdf. This presentation is designed to illustrate seven applications of the lucia method to the analysis of carbonate reservoirs. This is the only commercial course that addresses this critical parameter in details, supported by field examples. View carbonate reservoir characterization research papers on academia. An accessible resource, covering the fundamentals of carbonate reservoir engineering. Jerry lucia has spent 50 years researching and developing carbonate reservoirs, first for the shell oil company and now with the bureau of economic geology at the university of texas in austin. Carbonate reservoir characterization using wireline logs permian basin, west texas. Carbonate reservoir characterization research laboratory rcrl.
Each carbonate reservoir is unique and poses its own. Applications of the lucia method in carbonate petrophysics. In addition, this method is very expensive and uncontrollable. Natural fractures are increasingly recognized as dominant permeability paths in many reservoirs. Pdf tight carbonate reservoir characterization khalid. Heterogeneity may exist at all scalesin pores, grains, and. Carbonate reservoirs are considered to be the most significant source of hydrocarbon production for this century. One principal need in petroleum recovery from carbonate reservoirs is the description of the threedimensional distribution of petrophysical properties in order to improve performance predictions by means of fluidflow computer simulations. How can you ensure optimal drilling and production in carbonate reservoirs. Jerry lucia carbonate reservoir characterization an.
Carbonate reservoir characterization using seismic di raction imaginga apublished in interpretation, 3, no. It is the interaction between these two systems that must be understood while reservoir properties change with continued production. In this article, the very latest technology for carbonate complex reservoir characterization using hybrid seismic rock physics, statistic and artificial neural. Carbonate rocks typically have a complex texture and pore network resulting from their depositional history and later diagenesis. All of qatars producing oil and gasfields have carbonate reservoirs. Globally, about 60 percent of oil and 40 percent of gas reserves are found within carbonate rocks. Developments in petroleum science carbonate reservoir. Carbonate reservoir patterns play an important role in the production performance of oil and gas wells, and it is usually classified through static data analysis which cannot reflect the actual well performance. Rex butler 1, jonas gournay 2, nathan miller 2 1 schlumberger oilfield services, houston, tx 2 exxonmobil production company, houston, tx. Carbonate reservoir assessment is critical not only in the petroleum industry, but also for applications in hydrothermal and mineral resources, carbon capture and storage, and groundwater supply. These parameters control porosity and permeability and, therefore, reservoir quality. He has a long history of working in integrated teams of geologists, petrophysicists, reservoir engineers, and geophysicists. Request pdf carbonate reservoir characterization chapter 1.
First, assessment of the reservoir s paleoenvironment builds a broad understanding of likely reservoir geometry. Intervals of the midale and rival nesson beds in the mississippian madison group, burke county, north dakota. During that time he has been instrumental in developing a rockbased approach to carbonate reservoir characterization. The foundation of the lucia classification, as well as of the.
Carbonate reservoirs training course petroskills pcr. The approach was applied in the pennsylvanianpermian reef carbonates cisco and canyon formations of a subregion of the sacroc unit, horseshoe atoll, permian basin, texas, and acknowledged as a highly complex carbonate reservoir. In addition, with the ubiquitous use of geostatistical models to define and predict 3d. This paper also highlights many of the effects that need to be incorporated into an analytical rock physics model.
It can be defined as the construction of realistic 3d images of petrophysical properties used to predict reservoir performance, and it is a multidisciplinary. Characterization, petrography, and static geologic modeling of an unconventional carbonate reservoir. Jerry lucia, working in americas main oilrich state, has produced a work that. In the intervening 12 years since the first edition, there have been numerous studies of value published that need to be recognized and incorporated in the topics discussed. The complexity of this type of reservoir presents specific production challenges that can be solved by geochemistry, acid stimulation and crossover technology. Characterization, evaluation and enhanced oil recovery in. Carbonate reservoir an overview sciencedirect topics. The petrophysical characterization models must correspond to the elements and their behavior of carbonated naturally fractured reservoir, reason why they are useful in the obtaining of petrophysics parameters because the exact relations between the characteristics of the rock often do not exist due to.
Reservoir characterization models are used to simulate the behavior of the fluids within the reservoir under different sets of circumstances and to find the optimal production techniques that will maximize the production. Characterization of carbonate reservoir from core and well logging data a case study dev singh, b. This course is offered to provide an introduction to carbonate reservoir evaluation through use of academic and industry course material. Geology of carbonate reservoirs wiley online books.
Carbonate reservoir characterization an integrated. The process of rock property characterization in carbonates has to take into account both the stratigraphic and diagenetic model as a result. It can be defined as the construction of realistic 3d images of petrophysical properties used to predict reservoir performance, and it is a multidisciplinary, integrated task involving expertise in reservoir geology, geophysics. Geostatistical reservoir characterization of the canyon. Furthermore, a set of recommendations is provided for a better enhancement of data quality and optimization of future development plans. The principal focus of the book, carbonate reservoir characterization, is on the use of relationships between numerical petrophysical. One main target in petroleum recovery is the description of of the threedimensional distribution of petrophysical properties on the interwell scale in carbonate reservoirs, in order to improve performance predictions by means of fluidflow computer simulations the book focuses on the improvement of geological, petrophysical, and geostatistical methods, describes the basic petrophysical. Reservoir characterization encompasses the understanding and methods used to characterize reservoir heterogeneity.
Threedimensional modeling is a useful visualization tool to understand realistic facies distribution and depositional geometries. It requires new tools, techniques, and interpretation methodologies that harness and utilize borehole measurements with highresolution 3d surface seismic surveys. Integrated carbonate reservoir characterization training. Characterization of carbonate reservoir from core and well. Reservoir description how does the reservoir geologist use these descriptions to help plan the optimum exploitation of a carbonate reservoir. Rockfabricpetrophysical classification of carbonate pore space. Carbonate reservoir characterization research papers. According to the geometric characterization of fractures and vugs, and the division of fracturevug belts and systems, the distributions of fracturedvuggy bodies and sweet spots are clarified. Exploration and development geoscientists, petrophysicists, reservoir engineers, geostatistical modelers and researchdevelopment staff who want to gain fundamental insight into carbonate reservoir characterization through an integrated geological and petrophysical approach. Some of the applications include improved reservoir characterization in carbonates, use of rock physics in 4d analyses and interpretation, and validation with computational rock physics. Report from the march 2004 hedberg research symposium charles t. However, there are other important applications of the lucia method.
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