Download or read book Some Aspects of Deep Formation Testing written by Soraya Sofia Betancourt and published by . This book was released on 2012 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-probe formation testers have been used since the 1950s to measure pore pressure and estimate mobility in fluid-bearing formations penetrated by a well. They are widely used in the oil and gas industry, with tens of measurements often made in every newly drilled well as part of the formation evaluation program. Each measurement consists of placing the tool in the wellbore in direct contact with the face of the formation, extracting a small amount of fluid (from 1 to 50 cc) from the rock and analyzing the fluid pressure response of the system. Pressure interpretation is based on models that assume that temperature within the formation tester flowline remains constant during the tool operation. However, formation pressure measurement involves relatively fast volume and pressure changes within the flowline, which result in temperature changes. These temperature changes are modeled semi-analytically and their effect on pressure transients is analyzed. Temperature variations are accounted for by describing the pressure and temperature dependence of fluid density in the continuity equation, and that temperature varies with both space and time. It is considered here that once a temperature change is imposed on the system, the primary mechanism of thermal transport to achieve equilibrium is conduction. Including temperature in the analysis requires taking into account flowline geometry, and well environmental conditions during the measurement-- namely, wellbore temperature and type of drilling fluid in the wellbore, all of which are immaterial in the isothermal analysis. Arguably, pressure behavior during formation tester measurements could be influenced by several factors. All previous studies related to formation testers assume perfect tool performance and provide explanations to pressure behaviors from the reservoir point of view (e.g., Stewart and Witmmann, 1979; Phelps et al., 1984; Proett and Chin, 1996, etc.). The approach followed here is diametrically opposite. The formation is considered `perfect' from the point of view of pressure measurement, and physical phenomena (thermal transients) that may affect the measured pressure signal are studied. The focus is to understand fundamental aspects of the tool performance that can be studied analytically while minimizing, as much as possible, external parameters that add uncertainty. This dissertation was motivated by inconsistencies observed between the pressure behavior in field measurements and existing (isothermal) theory. For instance, false buildups, buildup overshoots and long time required to reach pressure equilibration, have puzzled those involved in the interpretation of formation tester pressure transients for many years. These behaviors can be reproduced in pressure computations when accounting for temperature variations. The focus of this dissertation is on modeling the tool capability to sense pressure transients associated with recompression of formation fluids several inches away from the wellbore, accounting for temperature variations during the measurement. This is relevant because it is desirable to characterize formation properties beyond the region affected by drilling mud filtrate invasion. In practice, a discrepancy is often observed between formation mobility obtained from drawdown, which depends mostly on formation properties near the wellbore, and mobility obtained from the analysis of late-time buildup pressure, which in theory depends on formation properties farther from the wellbore (Moran and Finklea, 1962). This dissertation examines the influence of late-time tool storage effects caused by thermal equilibration of the flowline fluid on the pressure equilibration and buildup mobility interpretation. It was found that in some cases such late-time storage effects could exhibit a behavior that resembles that expected from spherical flow, that is, the flow regime characteristic of single-probe formation testers; and could therefore invalidate mobility determined by isothermal transient pressure analysis. Formation tester flowline and probe design, test parameters (rate and volume), and environmental conditions during the measurement, mostly type of drilling fluid and wellbore temperature, are important variables in determining the magnitude of late-time storage effects, and hence the tool capability to detect a deep formation signal (spherical flow). Temperature variations affecting late-buildup pressure transients were observed to be more pronounced (listed in order of importance): as wellbore temperature increases; drilling fluid is oil-based mud; flowline with large radius components (e.g.> 1 cm); large flowline volume; small probe radius (

Download or read book Deep Convection and Deep Water Formation in the Oceans written by Simon Chu and published by Elsevier. This book was released on 1991-09-17 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains articles presenting current knowledge about the formation and renewal of deep waters in the ocean. These articles were presented at an international workshop at the Naval Postgraduate School in Monterey in March 1990. It is the first book entirely devoted to the topic of deep water formation in which articles have been both selected and reviewed, and it is also the first time authors have addressed both surface and deep mixed layers. Highlighted are: past and recent observations (description and analysis), concepts and models, and modern techniques for future research. Thanks to spectacular advances realised in computing sciences over the last twenty years this volume includes a number of sophisticated numerical models. Observational as well as theoretical studies are presented and a clear distinction is established between open-ocean deep convection and shelf processes, both leading to deep- and bottom-water formation. The main subject addressed is the physical mechanism by which the deep water in the ocean can be renewed. Ventilation occurs at the surface in areas called the gills, where water is mixed and oxygenated before sinking and spreading in the abyss of the deep ocean. This phenomenon is a very active area for both experimentalists and theoreticians because of its strong implications for the understanding of the world ocean circulation and Earth climate. This major theme sheds light on specific and complex processes happening in very restricted areas still controlling three quarters of the total volume of the ocean. All articles include illustrations and a bibliography. This book will be of particular interest to physical oceanographers, earth scientists, environmentalists and climatologists.

Download or read book Deep Foundation Improvements written by Melvin I. Esrig and published by ASTM International. This book was released on 1991 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-two papers from a symposium (on title), held in Las Vegas, January 1990, focus on deep foundation improvements through the formation of composite ground, and those related to improvement through compaction and densification. Annotation copyright Book News, Inc. Portland, Or.

Download or read book Geologic Studies of the Point Conception Deep Stratigraphic Test Well OCS CAL 78 164 No 1 Outer Continental Shelf Southern California United States written by Harry E. Cook and published by . This book was released on 1979 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nondestructive Testing of Deep Foundations written by Bernard Hertlein and published by John Wiley & Sons. This book was released on 2007-01-11 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nondestructive Testing involves the use of methods such as wave propagation, electromagnetism, electrical conductivity, and thermal conductivity to test structural integrity and thereby allow nondestructive assessment of structures and the possibility of structural failures before they occur. Nondestructive Testing of Deep Foundations covers different techniques designed to provide information about the integrity and quality of the material that makes up a deep foundation. Nondestructive Testing methods are used at all stages of a structure's life - from new construction quality control to residual lifetime prediction, and even during the monitoring of demolition. In addition, Nondestructive Testing is being increasingly specified in deep foundation projects, though often without a good understanding of its limitations and with the result that methods are often misused. In order to be able to specify an appropriate method, or to recognize an inappropriate specification, it is necessary for the engineer, specifier and/or contractor to understand the capabilities and limitations of each of the methods currently in use. Nondestructive Testing of Deep Foundations: Describes the most commonly used deep foundation construction techniques, including typical use of material Provides a brief history of the development of commercially available nondestructive methods Summarises each method's capabilities and limitations Acts as a one stop reference drawing together resources only previously available in conference proceedings and journal papers This manual will prove to be a welcome addition to the bookshelf of all practitioners in civil/structural and geotechnical engineering and architecture. It will also provide a valuable insight into this highly technical field for university researchers, lecturers and postgraduate students in civil/structural and geotechnical engineering.

Download or read book Well Test Analysis written by Dominique Bourdet and published by Elsevier. This book was released on 2002-08-21 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on well test analysis, and the use of advanced interpretation models is volume 3 in the series Handbook of Petroleum Exploration and Production.The chapters in the book are: Principles of Transient Testing, Analysis Methods, Wellbore Conditions, Effect of Reservoir Heterogeneities on Well Responses, Effect of Reservoir Boundaries on Well Responses, Multiple Well Testing, Application to Gas Reservoirs, Application to Multiphase Reservoirs, Special Tests, Practical Aspects of Well Test Interpretation.

Download or read book Design and Testing of a Deep Sea Formation Water and Temeperature Sampling Probe for the Ocean Drilling Program written by Patrick James Fisseler and published by . This book was released on 1995 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Circular written by and published by . This book was released on 1983 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Colloid nanoparticle formation and mobility in the context of deep geological nuclear waste disposal Project KOLLORADO 2 final report written by Huber, Florian and published by KIT Scientific Publishing. This book was released on 2014-03-03 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: To assess the relevance of colloidal influences on radionuclide transport for the long-term safety of a radioactive waste repository, the KOLLORADO-2 project integrates the results of geochemical and hydrogeological studies. The results may serve as a basis for an appraisal of the implications of colloid presence in the vicinity of radioactive waste repositories in different deep geological host-rock formations.

Download or read book Reservoir Formation Damage written by Faruk Civan and published by Elsevier. This book was released on 2011-08-30 with total page 1135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir Formation Damage, Second edition is a comprehensive treatise of the theory and modeling of common formation damage problems and is an important guide for research and development, laboratory testing for diagnosis and effective treatment, and tailor-fit- design of optimal strategies for mitigation of reservoir formation damage. The new edition includes field case histories and simulated scenarios demonstrating the consequences of formation damage in petroleum reservoirsFaruk Civan, Ph.D., is an Alumni Chair Professor in the Mewbourne School of Petroleum and Geological Engineering at the University of Oklahoma in Norman. Dr. Civan has received numerous honors and awards, including five distinguished lectureship awards and the 2003 SPE Distinguished Achievement Award for Petroleum Engineering Faculty. - Petroleum engineers and managers get critical material on evaluation, prevention, and remediation of formation damage which can save or cost millions in profits from a mechanistic point of view - State-of-the-Art knowledge and valuable insights into the nature of processes and operational practices causing formation damage - Provides new strategies designed to minimize the impact of and avoid formation damage in petroleum reservoirs with the newest drilling, monitoring, and detection techniques

Download or read book Mechanical Formation Testing written by D. T. Hoenshell and published by . This book was released on 1938 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Description and Interpretation of the Hattenberger Deep Test Well Carlton County Minnesota written by David L. Southwick and published by . This book was released on 2005 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Elements of Petroleum Geology written by Richard C. Selley and published by Academic Press. This book was released on 2022-06-11 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elements of Petroleum Geology, Fourth Edition is a useful primer for geophysicists, geologists and petroleum engineers in the oil industry who wish to expand their knowledge beyond their specialized area. It is also an excellent introductory text for a university course in petroleum geoscience. This updated edition includes new case studies on non-conventional exploration, including tight oil and shale gas exploration, as well as coverage of the impacts on petroleum geology on the environment. Sections on shale reservoirs, flow units and containers, IOR and EOR, giant petroleum provinces, halo reservoirs, and resource estimation methods are also expanded. - Written by a preeminent petroleum geologist and sedimentologist with decades of petroleum exploration in remote corners of the world - Covers information pertinent to everyone working in the oil and gas industry, especially geophysicists, geologists and petroleum reservoir engineers - Fully revised with updated references and expanded coverage of topics and new case studies

Download or read book Sc Y La Lu Rare Earth Elements written by Wolfgang Töpper and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume "Rare Earth Elements" A 6b deseribes in its first part the origin, mode of oeeurrenee, and behavior of Y and/or RE elements in the hydrosphere and atmos phere. Separately for marine and non-marine environments (surfaee, subsurfaee, mineral, and thermal waters), the behavior of RE (ineluding Y) in the hydrosphere eomprises espeeially the relationship between eontentleomposition and the ehemistry of water, and the processes aeting during migration, removal, and preeipitation are outlined; the influenee of biologieal material is mentioned. Behavior of RE in the atmosphere involves mainly transport, regional differenees, and temporal variations as weil as removal by preeipitation; the anthropogenie influenee is only outlined. The seeond part of this volume treats, partly in a more summary manner, the eosmo and geoehemieal eyeles and the balance of Y and/or RE elements. The relationship between geodynamie position and type of magmatism, as weil as the geoehemieal variations in the geospheres, especially mantle and erust of the earth, are deseribed in greater detail.

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1988 with total page 1198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Black Holes in Binaries and Galactic Nuclei Diagnostics Demography and Formation written by Riccardo Giacconi and published by Springer Science & Business Media. This book was released on 2001-02-26 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The observational evidence for the existence of black holes has grown significantly over recent decades. Stellar-mass black holes are detected as X-ray sources in binary systems, while supermassive black holes, with masses more than a million times the mass of the Sun, lurk in the nuclei of galaxies. These proceedings provide a useful and up-to-date overview of the observations of black holes in binaries, in the center of the Milky Way, and in the nuclei of galaxies, presented by leading expert astronomers. Special attention is given to the formation (including the recent evidence from gamma-ray bursts), physical properties, and demographics of black holes.

Download or read book Oil Gas Journal written by and published by . This book was released on 1927 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt: