Supercharge, Invasion, and Mudcake Growth in Downhole Applications

The book discusses mysterious supercharge effects encountered in formation testing, reservoir invasion, mudcake growth, dynamic filtration, and stuck-pipe remediation. It provides a comprehensive formulation, solutions for different specialized limits, and applications in seemingly unrelated disciplines. Fortran source code and software applications are included, and common (incorrect) methods are re-analyzed and replaced with more accurate models. Empirical validations are used through Catscan experiments to keep predictions honest. The methods are motivated by reality, such as overpressures of 2,000 psi and underpressures near 500 psi reported in field work. This comprehensive book is must-reading for petroleum engineers.

Format: Hardback
Length: 528 pages
Publication date: 17 August 2021
Publisher: John Wiley & Sons Inc

Mysterious supercharge effects, encountered in formation testing pressure transient analysis, 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.

Weight: 962g
Dimension: 239 x 159 x 31 (mm)
ISBN-13: 9781119283324