Download or read book Integration of Reservior sic Simulation and Wireline Formation Testing to Determine Near wellbore Permeability written by Logan Brooks and published by . This book was released on 2012 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition to collecting reservoir fluid samples, wireline formation testing (WFT) provides flow rate and pressure measurements for a given formation within a short sampling period. The traditional interpretation method fails to accurately determine near-wellbore permeability due mainly to filtration invasion and short sampling time. The main objective of this project is to accurately determine near-wellbore permeablity by integrating reservoir simulation with WFT technique.
Download or read book Determination of Permeability and Oil Saturation by Integrating Reservoir Simulation and Wireline Formation Test Data written by Mark Eberle and published by . This book was released on 2013 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: In reservoir engineering, well testing is considered as an essential process to measure and analyze formation and fluid properties for the purpose of formation evaluation. In an oilfield, well tests are conducted during exploration, development, production, and injection stages of a reservoir using a variety of methods. One of the most commonly used alternatives to the conventional well testing process is wireline formation testing (WFT). The data acquired from the WFT process allows for reservoir properties, such as formation permeability and oil saturation, to be more accurately determined when integrated with reservoir modelling.
Download or read book Integration of Numerical Simulation and Wireline Formation Testing Measurements for Permeability Interpretation written by Min Yang and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Reservoir Properties From Wireline Formation Test in Multilayer Reservoir written by Duenpen Palasarn and published by . This book was released on 2006 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a reservoir simulator was used to determine pressure responses from wireline formation tests for single-layer and multilayer reservoirs. Then, a well test interpretation software was used to estimate reservoir parameters. A single layer homogenous reservoir was used as a base case to investigate the effect of test duration, probe position, and formation permeability. Next, multilayer models were simulated and interpreted in order to obtain reservoir properties under different conditions. A reservoir model consisting of two layers of an equal thickness but with different values of permeabilities was constructed in order to determine the effect of the contrast permeability between layers and its order. The averaged permeabilities of multilayer reservoirs based on three averaging techniques were compared to the interpreted results. All the investigations were performed to determine whether the results from WFT conducted in multilayer systems can provide satisfactory information under different reservoir scenarios and tool limitation.
Download or read book Simultaneous Interpretation of Permeability and Capillary Pressure From Wireline Formation Testing Measurements written by Xiangnan Liu and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: As for designing its appropriate development scheme, it is crucial to accurately determine petrophysical properties (e.g., absolute and relative permeability) of a hydrocarbon reservoir, both of which can be traditionally determined either by performing steady-state or unsteady-state experiments or by conducting conventional well tests. However, the laboratory method is time-consuming and its measurements may not be representative for the field-scale cases. Since the conventional well testing theories are based on single-phase flow, it is a challenging task to accurately obtain relative permeability for multiple phases in porous media. Alternatively, flow rates together with pressure responses collected from a wireline formation testing (WFT) tool can be used to interpret absolute and relative permeability as well as capillary pressure of a given formation. Physically, capillary pressure plays an important role during multiphase flow for the WFT measurements, though its effect on the permeability interpretation has not been addressed. In this study, techniques have been developed to simultaneously interpret absolute permeability and relative permeability together with capillary pressure in a naturally fractured carbonate formation as well as to simultaneously interpret three-phase relative permeability and water-oil capillary pressure in a tight carbonate formation from WFT measurements. By using pressure and flow rate field data collected by a dualpacker WFT tool, high-resolution cylindrical near-wellbore numerical models are developed for each dataset. After validating grid quality, simulations and history matching are performed for both the measured pressure drawdown and buildup profiles, while absolute permeability is determined and relative permeability is interpreted with and without considering capillary pressure for the naturally fractured formation. As for the tight carbonate formation, water-oil relative permeability, oil-gas relative permeability, and water-oil capillary pressure are interpreted based on power-law functions and under the assumption of a water-wet reservoir and an oil-wet reservoir, respectively. Subsequently, three-phase relative permeability for the oil phase is determined by using the modified Stone II model. Compared with the experimentally measured values, relative permeability interpreted with consideration of capillary pressure has a better match than those without considering capillary pressure in the naturally fractured carbonate formation. In such a formation, absolute permeabilities in the vertical and the horizontal directions of the upper layer are determined to be 201.0 mD and 86.4 mD, respectively, while those of the lower layer are found to be 342.9 mD and 1.8 mD, respectively. Such a large vertical permeability of the lower layer reflects the contribution of the extensively distributed natural fractures in the vertical direction. In the tight carbonate formation, both the relative permeability and the capillary pressure of a water-oil system interpreted under an oil-wet condition match well with the measured values, while the relative permeability of an oil-gas system and the three-phase relative permeability bear a relatively high uncertainty. Not only is the tight reservoir determined as oil-wet, but also the initial oil saturation is found to impose an impact on the interpreted water relative permeability under an oil-wet condition. Changes in water and oil viscosities and mud filtrate invasion depth affect the range of the movable fluid saturation of the interpreted water-oil relative permeabilities.
Download or read book Development of Methods for Evaluating Formation Permeability Using Data from Logs and Cores written by Caiyin Yao and published by . This book was released on 1992 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Wireline Formation Testers in Thinly Laminated Reservoirs written by and published by . This book was released on 2010 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir formations are complex, heterogeneous, and anisotropic. The distribution of both horizontal and vertical permeability strongly affects reservoir performance and the amount of hydrocarbon recovery. Early in the life of a reservoir, the main concern is the average effective horizontal permeability to oil or gas since this controls the productivity and completion design of individual wells. Later on, vertical permeability becomes important because of its effect on gas and water coning as well as the productivity of horizontal and multilateral wells. This is the reason why numbers of measurement are needed for a full reservoir description. However, different scales of measurement can result in different kh, kv and anisotropies. This thesis studies the effect of reservoir heterogeneity, focusing on discontinued shale barriers, on different pressure transient tests, namely, single probe WFT, dual packer WFT, and conventional well test. The study is done by varying shale barrier properties such as shape, amount and distance between shale barrier and the well bore and simulating pressure responses from the three types of pressure measurement using a reservoir simulator. Then, using pressure transient interpretation software to estimate reservoir parameters, such as horizontal and vertical permeability, permeability anisotropy, and radius of investigation from derivative plots. From the study, the effect of shale barriers can be seen as hump in derivative plots of single probe and dual packer WFT. For well test, the scale of effect is so small and hardly observed. Furthermore, variation in distance between shale and the well bore, and shape of shale can result in different characteristics of hump in the derivative plot. However, the variation in amount of shale does influence the hump in derivative plots.
Download or read book Petrophysics written by Erle C. Donaldson and published by Elsevier. This book was released on 2004-01-24 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: The petroleum geologist and engineer must have a working knowledge of petrophysics in order to find oil reservoirs, devise the best plan for getting it out of the ground, then start drilling. This book offers the engineer and geologist a manual to accomplish these goals, providing much-needed calculations and formulas on fluid flow, rock properties, and many other topics that are encountered every day. New updated material covers topics that have emerged in the petrochemical industry since 1997. Contains information and calculations that the engineer or geologist must use in daily activities to find oil and devise a plan to get it out of the ground Filled with problems and solutions, perfect for use in undergraduate, graduate, or professional courses Covers real-life problems and cases for the practicing engineer
Download or read book The Log Analyst written by and published by . This book was released on 1997 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Geology for Underground Rocks written by Suping Peng and published by Springer Science & Business Media. This book was released on 2007-10-14 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Professionals and students in any geology-related field will find this an essential reference. It clearly and systematically explains underground engineering geology principles, methods, theories and case studies. The authors lay out engineering problems in underground rock engineering and how to study and solve them. The book specially emphasizes mechanical and hydraulic couplings in rock engineering for wellbore stability, mining near aquifers and other underground structures where inflow is a problem.
Download or read book Borehole Imaging written by Gail Williamson and published by Geological Society of London. This book was released on 1999 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Understanding Oil and Gas Shows and Seals in the Search for Hydrocarbons written by John Dolson and published by Springer. This book was released on 2016-06-15 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains in detail how to use oil and gas show information to find hydrocarbons. It covers the basics of exploration methodologies, drilling and mud systems, cuttings and mud gas show evaluation, fundamental log analysis, the pitfalls of log-calculated water saturations, and a complete overview of the use of pressures to understand traps and migration, hydrodynamics, and seal and reservoir quantification using capillary pressure. Also included are techniques for quickly generating pseudo-capillary pressure curves from simple porosity/permeability data, with examples of how to build spreadsheets in Excel, and a complete treatment of fluid inclusion analysis and fluid inclusion stratigraphy to map migration pathways. In addition, petroleum systems modeling and fundamental source rock geochemistry are discussed in depth, particularly in the context of unconventional source rock evaluation and screening tools for entering new plays. The book is heavily illustrated with numerous examples and case histories from the author’s 37 years of exploration experience. The topics covered in this book will give any young geoscientist a quick start on a successful career and serve as a refresher for the more experienced explorer.
Download or read book Shale Reservoirs written by John Breyer and published by AAPG. This book was released on 2012-08-20 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardcover plus CD
Download or read book Well Logging for Earth Scientists written by Darwin V. Ellis and published by Springer Science & Business Media. This book was released on 2008-06-18 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of this book demystified the process of well log analysis for students, researchers and practitioners. In the two decades since, the industry has changed enormously: technical staffs are smaller, and hydrocarbons are harder to locate, quantify, and produce. New drilling techniques have engendered new measurement devices incorporated into the drilling string. Corporate restructuring and the "graying" of the workforce have caused a scarcity in technical competence involved in the search and exploitation of petroleum. The updated 2nd Edition reviews logging measurement technology developed in the last twenty years, and expands the petrophysical applications of the measurements.
Download or read book Petrophysics written by and published by . This book was released on 2001 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reservoir Model Design written by Philip Ringrose and published by Springer. This book was released on 2014-10-03 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives practical advice and ready to use tips on the design and construction of subsurface reservoir models. The design elements cover rock architecture, petrophysical property modelling, multi-scale data integration, upscaling and uncertainty analysis. Philip Ringrose and Mark Bentley share their experience, gained from over a hundred reservoir modelling studies in 25 countries covering clastic, carbonate and fractured reservoir types. The intimate relationship between geology and fluid flow is explored throughout, showing how the impact of fluid type, production mechanism and the subtleties of single- and multi-phase flow combine to influence reservoir model design. Audience: The main audience for this book is the community of applied geoscientists and engineers involved in the development and use of subsurface fluid resources. The book is suitable for a range of Master’s level courses in reservoir characterisation, modelling and engineering. · Provides practical advice and guidelines for users of 3D reservoir modelling packages · Gives advice on reservoir model design for the growing world-wide activity in subsurface reservoir modelling · Covers rock modelling, property modelling, upscaling and uncertainty handling · Encompasses clastic, carbonate and fractured reservoirs
Download or read book Casing Design Theory and Practice written by S.S. Rahman and published by Elsevier. This book was released on 1995-08-01 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Casing design has followed an evolutionary trend and most improvements have been made due to the advancement of technology. Contributions to the technology in casing design have come from fundamental research and field tests, which have made casing safe and economical. This book gathers together much available information in the subject area and shows how it may be used in deciding the best procedure for casing design i.e. optimizing casing design for deriving maximum profit from a particular well. The problems and their solutions, which are provided in each chapter, and the computer program (3.5 in. disk) are intended to serve two purposes:- firstly, as illustrations for students and practicing engineers to understand the subject matter, and secondly, to enable them to optimize casing design for a wide range of wells to be drilled in the future.
