Formation Testing

Formation Testing PDF Author: Wilson C. Chin
Publisher: John Wiley & Sons
ISBN: 1118925963
Category : Science
Languages : en
Pages : 314

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Book Description
Traditional well logging methods, such as resistivity, acoustic, nuclear and NMR, provide indirect information related to fluid and formation properties. The “formation tester,” offered in wireline and MWD/LWD operations, is different. It collects actual downhole fluid samples for surface analysis, and through pressure transient analysis, provides direct measurements for pore pressure, mobility, permeability and anisotropy. These are vital to real-time drilling safety, geosteering, hydraulic fracturing and economic analysis. Methods for formation testing analysis, while commercially important and accounting for a substantial part of service company profits, however, are shrouded in secrecy. Unfortunately, many are poorly constructed, and because details are not available, industry researchers are not able to improve upon them. This new book explains conventional models and develops new powerful algorithms for “double-drawdown” and “advanced phase delay” early-time analysis - importantly, it is now possible to predict both horizontal and vertical permeabilities, plus pore pressure, within seconds of well logging in very low mobility reservoirs. Other subjects including inertial Forchheimer effects in contamination modeling and time-dependent flowline volumes are also developed. All of the methods are explained in complete detail. Equations are offered for users to incorporate in their own models, but convenient, easy-to-use software is available for those needing immediate answers. The leading author is a well known petrophysicist, with hands-on experience at Schlumberger, Halliburton, BP Exploration and other companies. His work is used commercially at major oil service companies, and important extensions to his formation testing models have been supported by prestigious grants from the United States Department of Energy. His new collaboration with China National Offshore Oil Corporation marks an important turning point, where advanced simulation models and hardware are evolving side-by-side to define a new generation of formation testing logging instruments. The present book provides more than formulations and solutions: it offers a close look at formation tester development “behind the scenes,” as the China National Offshore Oil Corporation opens up its research, engineering and manufacturing facilities through a collection of interesting photographs to show how formation testing tools are developed from start to finish.

Formation Testing

Formation Testing PDF Author: Wilson C. Chin
Publisher: John Wiley & Sons
ISBN: 1118925963
Category : Science
Languages : en
Pages : 314

Get Book Here

Book Description
Traditional well logging methods, such as resistivity, acoustic, nuclear and NMR, provide indirect information related to fluid and formation properties. The “formation tester,” offered in wireline and MWD/LWD operations, is different. It collects actual downhole fluid samples for surface analysis, and through pressure transient analysis, provides direct measurements for pore pressure, mobility, permeability and anisotropy. These are vital to real-time drilling safety, geosteering, hydraulic fracturing and economic analysis. Methods for formation testing analysis, while commercially important and accounting for a substantial part of service company profits, however, are shrouded in secrecy. Unfortunately, many are poorly constructed, and because details are not available, industry researchers are not able to improve upon them. This new book explains conventional models and develops new powerful algorithms for “double-drawdown” and “advanced phase delay” early-time analysis - importantly, it is now possible to predict both horizontal and vertical permeabilities, plus pore pressure, within seconds of well logging in very low mobility reservoirs. Other subjects including inertial Forchheimer effects in contamination modeling and time-dependent flowline volumes are also developed. All of the methods are explained in complete detail. Equations are offered for users to incorporate in their own models, but convenient, easy-to-use software is available for those needing immediate answers. The leading author is a well known petrophysicist, with hands-on experience at Schlumberger, Halliburton, BP Exploration and other companies. His work is used commercially at major oil service companies, and important extensions to his formation testing models have been supported by prestigious grants from the United States Department of Energy. His new collaboration with China National Offshore Oil Corporation marks an important turning point, where advanced simulation models and hardware are evolving side-by-side to define a new generation of formation testing logging instruments. The present book provides more than formulations and solutions: it offers a close look at formation tester development “behind the scenes,” as the China National Offshore Oil Corporation opens up its research, engineering and manufacturing facilities through a collection of interesting photographs to show how formation testing tools are developed from start to finish.

Supercharge, Invasion, and Mudcake Growth in Downhole Applications

Supercharge, Invasion, and Mudcake Growth in Downhole Applications PDF Author: Wilson Chin
Publisher: John Wiley & Sons
ISBN: 1119283329
Category : Science
Languages : en
Pages : 530

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Book Description
Mysterious "supercharge effects," encountered in formation testing pressure transient analysis, and reservoir invasion, mudcake growth, dynamic filtration, stuck-pipe remediation, and so on, are often discussed in contrasting petrophysical versus drilling contexts. However, these effects are physically coupled and intricately related. The authors focus on a comprehensive formulation, provide solutions for different specialized limits, and develop applications that illustrate how the central ideas can be used in seemingly unrelated disciplines. This approach contributes to a firm understanding of logging and drilling principles. Fortran source code, furnished where applicable, is listed together with recently developed software applications and conveniently summarized throughout the book. In addition, common (incorrect) methods used in the industry are re-analyzed and replaced with more accurate models, which are then used to address challenging field objectives. Sophisticated mathematics is explained in "down to earth" terms, but empirical validations, in this case through Catscan experiments, are used to "keep predictions honest." Similarly, early-time, low mobility, permeability prediction models used in formation testing, several invented by one of the authors, are extended to handle supercharge effects in overbalanced drilling and near-well pressure deficits encountered in underbalanced drilling. These methods are also motivated by reality. For instance, overpressures of 2,000 psi and underpressures near 500 psi are routinely reported in field work, thus imparting a special significance to the methods reported in the book. This new volume discusses old problems and modern challenges, formulates and develops advanced models applicable to both drilling and petrophysical objectives. The presentation focuses on central unifying physical models which are carefully formulated and mathematically solved. The wealth of applications examples and supporting software discussed provides readers with a unified focus behind daily work activities, emphasizing common features and themes rather than unrelated methods and work flows. This comprehensive book is "must" reading for every petroleum engineer.

Annotations of Selected Papers on the Mechanics of Igneous Invasion

Annotations of Selected Papers on the Mechanics of Igneous Invasion PDF Author: Stanley Wilford Sundeen
Publisher:
ISBN:
Category : Batholiths
Languages : en
Pages : 62

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Book Description


Invasion Dynamics

Invasion Dynamics PDF Author: Cang Hui
Publisher: Oxford University Press
ISBN: 0198745338
Category : Mathematics
Languages : en
Pages : 337

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Book Description
An advanced textbook adopting a theoretical modeling approach to review and discuss the current range and distributions of alien species, their rates of spread, and their impact in human-dominated ecosystems.

Plant Physiology and Ecology

Plant Physiology and Ecology PDF Author: Frederic Edward Clements
Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 346

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Book Description


Botanical Survey of Nebraska

Botanical Survey of Nebraska PDF Author:
Publisher:
ISBN:
Category : Plants
Languages : en
Pages : 184

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Book Description


Bulletin of the Illinois State Laboratory of Natural History

Bulletin of the Illinois State Laboratory of Natural History PDF Author:
Publisher:
ISBN:
Category : Natural history
Languages : en
Pages : 848

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Book Description


MACPF/CDC Proteins - Agents of Defence, Attack and Invasion

MACPF/CDC Proteins - Agents of Defence, Attack and Invasion PDF Author: Gregor Anderluh
Publisher: Springer
ISBN: 9401788812
Category : Medical
Languages : en
Pages : 329

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Book Description
This book focusses on evolutionary, structural and functional aspects of pore-forming proteins, bringing together prominent researchers in the fields of structural biology and cellular and biophysical techniques. The focus is on the MACPF/CDC protein super family that was originally discovered because of unexpected structural similarity between a domain present in bacterial cholesterol-dependent cytolysins (CDC) and proteins of the membrane attack complex/perforin (MACPF) family. Members of the MACPF/CDC super family are crucial for many biological processes, being efficient agents of development, defence, attack and invasion of cells and tissues. However, their best-known role is in bacterial pathogenesis and the proper functioning of the vertebrate immune system, via formation of transmembrane pores in target cell membranes. The book contains chapters on the distribution of MACPF/CDC proteins and on aspects of their evolution and structural properties, the similarities between different super family members and functional properties of some of the best known examples. The book also contains an overview of biophysical approaches that may be used in the future to provide further insights into how these interesting proteins function.

Bacterial Invasion into Eukaryotic Cells

Bacterial Invasion into Eukaryotic Cells PDF Author: Tobias A. Oelschlaeger
Publisher: Springer Science & Business Media
ISBN: 147574580X
Category : Science
Languages : en
Pages : 706

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Book Description
This latest volume in the excellent Subcellular Biochemistry series is the first attempt to give an in-depth overview of the field of bacterial cell invasion. The current knowledge about all well-studied bacteria with the ability to invade eukaryotic cells is brought together, including bacteria pathogenic to humans and animals as well as the symbiotic rhizobia. Several chapters also deal with new approaches and applications regarding invasive bacteria. The book, which includes contributions from worldwide experts, discusses bacterial invasion ability within the context of bacteria-host cell interaction with the main focus on pathogenicity.

Attempts to Understand Metastasis Formation II

Attempts to Understand Metastasis Formation II PDF Author: Ursula Günthert
Publisher: Springer Science & Business Media
ISBN: 3642611095
Category : Medical
Languages : en
Pages : 297

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Book Description
Within the last decade the molecular biology of tumor models has revealed the identification of several metastasis- related molecules. These volumes attempt to review the most recent approaches of their mechanisms, regulation and way to treat their malignant alterations. The first volume covers the presentation of proteases and inhibitors and their role in invasion of tumor cells, also cell adhesion molecules and their interaction with the extracellular matrix. In the second volume the regulation of tumor progression and angiogenesis by cytokines, growth factors and motility factors is outlined. The third volume deals with detection of micrometastases and therapeutic approaches, such as immunotherapy, gene therapy, chemotherapy and surgical strategies to combat metastatic spread.