Formation Evaluation

Formation Evaluation

Author: EXLOG/Whittaker

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 194

ISBN-13: 9400953534

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Petroleum Geology is a complex discipline, drawing upon data from many technologies. It is the function of Well site Geologists to integrate processed data produced prior to and dur ing the drilling operation With their own geological observations. For this reason, it is necessary that geologists appreciate some of the technology, theory of measurement, and processing of this data in order to better assess and use them. In the Field Geologists's Training Guide (Exlog, 1985) and Mud Logging: Principles and Interpretations (Exlog, 1985), an introduction is given to the scope of petroleum geology, and the techniques of hydrocarbon (oil and gas) logging as a reservoir evaluation tool. This handbook is intended to provide the Logging Geologist, and those training for a Consultant Wellsite Geologist position, with a review of geological techniques and classification systems. This will ensure the maximum development of communicable geological informa tion. Whether a geologist's work lies in this direction or in the more applied field of pressure evaluation, it is the application of geological insight to engineering problems that distinguishes the professional logging geologist in the field. This book will be of interest to and become a regular reference for all geologists. 1 INTRODUCTION CUTTINGS RECOVERY 1. 1 In an ideal borehole and mud system, cuttings would be transported to surface with the same order and composition as they were cut, as in Figure 1-1.


Military Aspects of Geology

Military Aspects of Geology

Author: E. P. F. Rose

Publisher: Geological Society of London

Published: 2019-01-31

Total Pages: 316

ISBN-13: 1786203944

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This book complements the Geological Society’s Special Publication 362: Military Aspects of Hydrogeology. Generated under the auspices of the Society’s History of Geology and Engineering Groups, it contains papers from authors in the UK, USA, Germany and Austria. Substantial papers describe some innovative engineering activities, influenced by geology, undertaken by the armed forces of the opposing nations in World War I. These activities were reactivated and developed in World War II. Examples include trenching from World War I, tunnelling and quarrying from both wars, and the use of geologists to aid German coastal fortification and Allied aerial photographic interpretation in World War II. The extensive introduction and other chapters reveal that ‘military geology’ has a longer history. These chapters relate to pre-twentieth century coastal fortification in the UK and the USA; conflict in the American Civil War; long-term ‘going’ assessments for German forces; tunnel repair after wartime route denial in Hong Kong; and tunnel detection after recent insurgent improvisation in Iraq.


Guidelines for the Geologic Evaluation of Debris-flow Hazards on Alluvial Fans in Utah

Guidelines for the Geologic Evaluation of Debris-flow Hazards on Alluvial Fans in Utah

Author: Richard E. Giraud

Publisher: Utah Geological Survey

Published: 2005-06

Total Pages: 21

ISBN-13: 1557917299

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The Utah Geological Survey (UGS) developed these guidelines to help geologists evaluate debris-flow hazards on alluvial fans to ensure safe development. Debris-flow hazard evaluations are particularly important because alluvial fans are the primary sites of debris-flow deposition and are also favored sites for development. The purpose of a debris-flow-hazard evaluation is to characterize the hazard and provide design parameters for risk reduction. The UGS recommends critical facilities and structures for human occupancy not be placed in active debris flow travel and deposition areas unless the risk is reduced to an acceptable level. These guidelines use the characteristics of alluvial fan deposits as well as drainage-basin and feeder-channel sediment-supply conditions to evaluate debris-flow hazards. The hazard evaluation relies on the geomorphology, sedimentology, and stratigraphy of existing alluvial fan deposits. Analysis of alluvial-fan deposits provides the geologic basis for estimating frequency and potential volume of debris flows and describing debris-flow behavior. Drainage-basin and feeder-channel characteristics determine potential debris-flow susceptibility and the volume of stored channel sediment available for sediment bulking in future flows.


Essentials of Mineral Exploration and Evaluation

Essentials of Mineral Exploration and Evaluation

Author: S. M. Gandhi

Publisher: Elsevier

Published: 2016-05-10

Total Pages: 422

ISBN-13: 0128053321

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Essentials of Mineral Exploration and Evaluation offers a thorough overview of methods used in mineral exploration campaigns, evaluation, reporting and economic assessment processes. Fully illustrated to cover the state-of-the-art exploration techniques and evaluation of mineral assets being practiced globally, this up-to-date reference offers balanced coverage of the latest knowledge and current global trends in successful mineral exploration and evaluation. From mineral deposits, to remote sensing, to sampling and analysis, Essentials of Mineral Exploration and Evaluation offers an extensive look at this rapidly changing field. Covers the complete spectrum of all aspects of ore deposits and mining them, providing a "one-stop shop" for experts and students Presents the most up-to-date information on developments and methods in all areas of mineral exploration Includes chapters on application of GIS, statistics, and geostatistics in mineral exploration and evaluation Includes case studies to enhance practical application of concepts


Evaluation of Uncertainties and Risks in Geology

Evaluation of Uncertainties and Risks in Geology

Author: György Bardossy

Publisher: Springer Science & Business Media

Published: 2013-04-17

Total Pages: 230

ISBN-13: 366207138X

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High levels of uncertainty are a trademark of geological investigations, such as the search for oil, diamonds, and uranium. So business ventures related to geology, such as mineral exploration and mining, are naturally associated with higher risks than more traditional entrepreneurial ventures in industry and economy. There are also a number of dangerous natural hazards, e.g. earthquakes, volcanic activities, and inundations, that are the direct result of geological processes. It is of paramount interest to study them all, to describe them, to understand their origin and - if possible - to predict them. While uncertainties, geological risks and natural hazards are often mentioned in geological textbooks, conferences papers, and articles, no comprehensive and systematic evaluation has so far been attempted. This book, written at an appropriately sophisticated level to deal with complexity of these problems, presents a detailed evaluation of the entire problem, discussing it from both, the geological and the mathematical aspects.


Land Surface Evaluation for Engineering Practice

Land Surface Evaluation for Engineering Practice

Author: Dr. James S. Griffiths

Publisher: Geological Society of London

Published: 2001

Total Pages: 260

ISBN-13: 9781862390843

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This volume presents a collection of papers on techniques and case studies in land surface evaluation for engineering practice written by specialist practitioners in the field. The volume arose out of deliberations by the Second Working Party on Land Surface Evaluation set up by the engineering group of the Geological Society in January 1997 and chaired by Dr J.S. Griffiths. The book provides examples of cost-effective methods for collecting land surface and near surface data prior to carrying further detailed ground investigations of engineering sites.


Geologic Evaluation of San Clemente Island as a Location for a Rock-site I Installation

Geologic Evaluation of San Clemente Island as a Location for a Rock-site I Installation

Author: C. F. Austin

Publisher:

Published: 1968

Total Pages: 42

ISBN-13:

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San Clemente Island has been studied to determine the geologic suitability of employing the island as a candidate site for the construction of a Rock-Site I installation, the land-linked experimental laboratory. The studies of the island consisted of a review of the geologic literature, aerial reconnaissance, geologic mapping, core drilling, borehole pumping, and offshore geophysical studies and sampling operations. Based on the results of these investigations the recommendation is made that the laboratory area beneath the sea floor be located off Mail Point with access tunnels to the laboratory originating at either Mail Point or Lost Point. As a candidate site, San Clemente Island is considered to be feasible but difficult. (Author).


Comprehensive Practice of Exploration and Evaluation Techniques in Complex Reservoirs

Comprehensive Practice of Exploration and Evaluation Techniques in Complex Reservoirs

Author: Xiaodong Cheng

Publisher: Springer

Published: 2019-05-15

Total Pages: 390

ISBN-13: 9811364311

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This book covers exploration and evaluation practices for various types of complex reservoirs, and summarizes a series of practical and effective techniques and methods. For example, it shows how, by integrating multiple types of new logging technology, complex reservoir petrophysics evaluation can be performed using high-precision core experiment data and quantitative logging interpretation; and demonstrates how the technology of sporopollen assemblage and palynofacies analysis can improve the time precision of sequence stratigraphy and the quantitative study level of sedimentary facies, respectively. It discusses how reservoir lateral prediction and vertical resolution can be substantially improved by integrating fracture prediction and geostatistical inversion; and presents innovative log interpretation charts for the lithological identification of metamorphic rocks, e.g. GR-DEN crossplot and Impedance-Resistivity crossplot. To support the main content, the book features a wealth of high-resolution, thin- section images, quantitative illustrations of palynofacies composition, multi-property overlapping map set and quantitative tables. It offers an essential reference guide for researchers in geological exploration and evaluation, and will also appeal to a broad readership, from engineering technicians to advanced graduate students in related areas.