Drilling Fluid Engineering

Cover......Page 1 Drilling Fluid Engineering......Page 2 ©......Page 3 Contents......Page 4 1.1 Nine distinct mud systems......Page 7 1.2 The five main tasks of a drilling fluid......Page 8 1.3 About this book......Page 9 2.1 The mud loop and solids control......Page 10 2.2 The mud pump......Page 13 3.1 Clay chemistry......Page 15 3.2 Polymer chemistry......Page 21 3.3 Rheology of drilling fluids......Page 23 3.4 Additives......Page 27 4.1 Head loss......Page 32 4.2 Laminar flow......Page 33 4.3 Turbulent pipe flow......Page 46 4.4 Singularity losses......Page 50 5.1 Cuttings removal process......Page 54 5.2 Boundary conditions of the drilling process......Page 56 5.3 General......Page 59 5.4 Optimizing the complete well......Page 62 6.1 Hole cleaning in vertical wells......Page 66 6.2 Hole cleaning in inclinded wells......Page 72 7 Keeping wellbore within maximum and minimum pressure; ECD-control......Page 81 7.1 Density control......Page 82 7.2 ECD factors......Page 84 7.3 Temperature variation......Page 91 8.1 Introduction......Page 96 8.2 Filtration control......Page 97 8.3 Mechanical stability......Page 99 8.4 Chemical stability......Page 102 8.5 Hole problems......Page 105 8.6 Inhibitive mud......Page 112 8.7 Countermeasures to hole problems.......Page 117 9 References......Page 119 10.1 Nomenclature......Page 120 10.2 Abbreviations and explanations......Page 122 10.3 Definitions......Page 124 10.4 Continuity, momentum and energy equation in microscopic and macroscopic form......Page 125 10.5 Hydraulic friction loss equations......Page 126 10.6 Determine Rheological Constants – Regression Analysis......Page 127 10.8 Viscosity and density of water vs. temperature......Page 132