Reservoir Geomechanics is a practical reference for geoscientists and engineers in the petroleum and geothermal industries, and for research scientists interested in stress measurements and their application to problems of faulting and fluid flow in the crust. Shear‐enhanced compaction, as implemented through the well‐known Cam‐Clay model, is explained, and tensile rock failure is briefly discussed. Finally, the need for further research, model limitations and some missing parts of the puzzle are highlighted. Thus, this book is a particularly good reference for engineers/scientists working in the energy industry. 79 0 obj <> endobj The book is composed of three parts and is divided into 12 chapters. 0000001387 00000 n If you do not receive an email within 10 minutes, your email address may not be registered, Researchers and drillers involved in this project would benefit from this book, which provides knowledge on stress estimation and the concepts and approaches needed to maintain wellbore stability. The important control that overpressures have on effective in situ stress magnitudes and wellbore failure is emphasized. They duplicate gray‐scale counterparts appear in proper sequence in the text, but their placement is awkward (no doubt motivated by production costs). The majority of the case examples and discussion are for sedimentary basins in a normal faulting regime, and the major applications seem to be directed toward the oil industry. Please check your email for instructions on resetting your password. 2015-02-17 17:52. The theme running throughout the book is the importance of quantitatively estimating the stress state in a reservoir because it influences failure, which can be a desired outcome for stimulating production in low‐permeability reservoirs or (perhaps more frequently) an undesired outcome in the case of wellbore failure. The author is careful to note that ‘it is important to keep in mind that focal plane mechanisms record deformation and not stress’ (page 161). As stated in the jacket of the book, ‘This interdisciplinary book encompasses the fields of rock mechanics, structural geology, and petroleum engineering to address a wide range of geomechanical problems that arise during the exploitation of oil and gas reservoirs’. Reservoir geomechanics encompasses aspects related to rock mechanics, structural geology and petroleum engineering. In the petroleum engineering industry, geomechanics is used to predict important parameters, such as in-situ rock stress, modulus of elasticity, leak-off coefficient and Poisson's ratio. I thank Prof. Herbert F. Wang (University of Wisconsin) for reading through this book review and giving me comments and suggestions, which made it possible for me to offer my first book review in English. 0000000596 00000 n Examples of fault compartmentalization are presented and several possible mechanisms of the generation of overpressure are discussed. The full text of this article hosted at iucr.org is unavailable due to technical difficulties. Empirical approaches to estimate rock strength from geophysical log data are described because of their practical importance. Fundamental concepts such as stress tensor, Anderson’s classification scheme for different faulting regimes, and regional stress patterns at several different scales are introduced.  This leads to associated displacement field on the surface called Subsidence. <<9F1C778A6A14E94498169AEA7E3C1EA0>]>> The second part of the book is ‘Measuring Stress Orientation and Magnitude’ and consists of four chapters: Chapter 6, ‘Compressive and Tensile Failures in Vertical Wells’ starts from Kirsch’s theory for stress concentration around a cylindrical hole. are the consequence of the past stresses which may not be active today Geomechanics also helps engineers to model fluid movement and predict how fluid removal or injection leads to changes in permeability, fluid pressure, and in situ rock stresses that can have significant effects on reservoir performance. You signed out in another tab or window. In this course we address a range of topics that affect the recovery of hydrocarbons from extremely low-permeability unconventional oil and gas reservoirs. The latter part of this chapter includes a discussion on fault sealing and leakage, and dynamic controls on hydrocarbon column heights, based on geomechanical considerations discussed previously. Reservoir Geomechanics edX course Back to Video Library 2 Constitutive Laws: Behavior of Rocks Fundamentals of Pore-Mechanics. ���a`>m-r���Km��$ׄ/xظ< �aQ�Ѫ]U� �$.q��Z�ʮ}i�1��C� pp Poroelastic stress change with pressure depletion is introduced and a ‘reservoir space’ diagram (least principal stress versus pore pressure) is used to discuss the stress paths. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.. 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