The book offers novel petrophysical methods for obtaining and characterizing physical properties of sandstone and fractured carbonate rocks. The proposed experimental petrophysical test for the determination of permeability tensor ellipses in fractured rocks at a laboratory scale is a methodology of easy application and does not require complicated equipment. Such a test can be extended with 3D digital petrophysics. The estimation of principal permeability directions is useful in the realization of immiscible or miscible displacements in the rock.
This book is of interest for professionals and researchers in the field of petrophysics and oil and gas exploration.
Author(s): Daniel Cabrera S., Fernando Samaniego V.
Series: Advances in Oil and Gas Exploration & Production
Publisher: Springer
Year: 2022
Language: English
Pages: 66
City: Cham
Preface
Contents
Symbols
1 Petrophysics or Geomechanics: A Branch of Mechanics
1.1 Experimental Design in Reservoir Engineering
1.1.1 Physical Models
1.1.2 Mathematical Models
1.2 Experimental Analysis of Fractured Porous Rocks
1.3 Advantages of Whole Core Fractured Rocks Samples
1.4 Book Overview
1.5 Industrial Applications
References
2 Petrophysical Classification of Rocks
2.1 Rock Type l: Limestone Rock with Very Low Porosity and Permeability
2.2 Rock Type ll: Compact Rock, with Low Porosity and Permeability
2.3 Rock Type lll: Sandstone Rock of Intermediate Consolidation
2.4 Rock Type IV: Sandstone Rock of Intermediate Consolidation
2.5 Rock Type V: Fractured Rock with Low Porosity and Permeability Matrix
2.6 Rock Type Vl: Fractured Rock with High Porosity and Permeability Matrix
2.7 Rock Type Vll: Rock with Triple Porosity (Matrix, Vugs, and Fractures)
2.8 Rock Type Vlll: Salt Rock
2.9 Rock Type lX: Artificial Porous Media
2.9.1 Compressibility of Rocks
References
3 Experimental Permeability Tensor for Fractured Porous Rocks
3.1 Introduction
3.2 Literature Review
3.3 General Methodology
3.4 Experimental Methodology
3.5 Experimental Analysis Results
3.6 Linear Compaction Tendency
3.7 Vertical Permeability
3.8 Transverse Directional Permeabilities
3.9 Permeability Linear Functions
3.11 Conclusions
References
4 Scaling Experimental Immiscible Flow and Geomechanics in Fractured Porous Rock
4.1 Introduction
4.2 Dimensional Analysis and Inspectional Analysis
4.3 Background
4.4 Experimental Design
4.4.1 Sample Cutting and Trimming
4.4.2 Core Cleaning and Drying
4.4.3 Bulk Porosity, Effective Porosity, Compressibility, and Permeability Data
4.4.4 Wettability
4.4.5 Fluids Saturation
4.4.6 Scaling and Geomechanical Dimensionless Time
4.5 First Displacement (Residual Oil Saturation in Vugy-Fracture-Matrix System)
4.6 Second Displacement (Residual Oil Saturation in the Pseudo-matrix System)
4.7 Discretization of Residual Oil Saturation in the Pseudo-matrix and Vuggy-Fracture System
4.8 Physical Similitude Between Model and Prototype
4.9 Conclusions
References
5 General Conclusions
