出版社:李璗、 陈军斌 石油工业出版社 (2012-06出版)
出版日期:2012-6
ISBN:9787502189631
页数:251页
章节摘录
版权页： 插图： If the flow which exists in the bottom water coning is called disturbed movement,the flowwith same production and under same condition withoutbottom water coning is called undisturbed movement,andthe two flow laws will be compared later. Assume the top and bottom of formation areimpermeable,the potential distribution on side face of runder two situations is the same.Because the undisturbedrange is wider than the disturbed range,under the samecondition,the potential of disturbed flow at arbitrary pointin formation is smaller than that of undisturbed flow.Thepotential along the cylinder surface of rw of undisturbedflow is expressed with A'B'C'D',which lies in the rightside of the distributing curve ABCD of the potential ofdisturbed flow as shown in Figure 6-9.Because theproduction of the two is equal,its area should be equal to the area ABCDEA. It can be seen from Figure 6 -9 that the intersection point C'of straight line DC and A'B'C'D'lies below the point C,and the coordinate of point C is coincident with the coning apex.At thismoment,because the flow rate of disturbed flow and undisturbed flow is equal,the area A'B'C'D'EA'should be equal to the area ABCDEA ;that is:the area of belt ABCC'B'A'A should be equal to thearea of triangle C'D'D. If the potential remains unchanged and the production of well increases,then thepotential on the borehole wall must decrease,according to the equilibrium condition of waterconing,the following expression can be obtained: The expression above is the slope of line CD,so before the bottom water breaks through theoil well,the potential of oil-bearing part below well bottom can be expressed with thecurve BC as shown in Figure 6-10(b).On the coning apex,the included angle between tangentof curve BC and vertical line is:/3 is positive.So under this condition,the shape of oil-water interface presents tip end at thelocation of well axis as shown in Figure 6-10(a).Water will break through the oil well quickly.When the flow rate is equal and also the potential,the potential of undisturbed flow alongthe well axis is bigger than that of disturbed flow,which is expressed with the curve B'B"C'D' inFigure 6-10(b) ,which lies in the right side of the curve BC.It can be seen that because the areaof triangle C'D'D should be equal to the area of banded region B'B"C'CB,under any condition,the area of triangle C'D'D should be bigger than that of arch.
书籍目录
Chapter 1 Basic law of percolation 1.1 Static state in reservoirs 1.2 Driving forces and driving mode in reservoir 1.3 Darcy's law 1.4 The limitations of Darcy' s law and non-Darcy percolation Exercises Chapter 2 Steady state percolation of single-phase incompressible fluid 2.1 Three basic forms of percolation 2.2 Planar one-dimensional steady state percolation of single-phase incompressible fluid. 2.3 Planar radial fluid flow of single-phase incompressible fluid 2.4 Imperfect well 2.5 Systematic well testing( Step rate testing) 2.6 Differential equation of single-phase fluid percolation Exercises Chapter 3 Interference theory of wells under rigid water drive 3.1 Phenomenon of interference of wells 3.2 Superposition principle of potential 3.3 Method of mirror 3.4 Application of complex function theory in the planar percolation field Exercises Chapter 4 Unsteady state percolation of slightly compressible fluid 4.1 The physical process of elastic fluid percolation towards wells 4.2 The planar one-dimensional unsteady state percolation in semi-infinite formation 4.3 Pressure transient law of elastic fluid unsteady state percolation towards well bore 4.4 Approximate solution of pressure change of fluid percolation towards well in finite closed elastic formation 4.5 Multi interference of wells of elastic unsteady state percolation 4.6 Unsteady state well testing analysis Exercises Chapter 5 Percolation law of natural gas 5.1 Properties of natural gas and its basic differential equation of percolation 5.2 Steady state percolation of gas 5.3 Unsteady state percolation of gas Exercises Chapter 6 Foundation of water/oil displacement theory 6.1 Piston like displacement of oil by water 6.2 Bottom water coning 6.3 Theoretical foundation of non-piston like displacement of oil by water Exercises Chapter 7 Percolation theory of oil-gas two phases( dissolved gas drive) 7.1 Basic differential equation of oil-gas two-phases percolation 7.2 Oil-gas two-phase steady state percolation 7.3 Unsteady state percolation of gassy fluid Exercises Chapter 8 Flow in dual-media 8.1 Flow characteristics in dual-media 8.2 Basic flow equation of single-phase slightly compressible fluid in dual-media 8.3 Pressure distribution in infinite dual-media 8.4 Oil-water two-phase flow in the dual-media 8.5 Flow of fluid in pure fracture formation Exercises Chapter 9 Percolation of non-Newtonian liquid 9.1 Mechanical behavior and type of non-Newtonian liquid 9.2 Percolation of non-Newtonian power law liquid Exercises Chapter 10 Theory of similarity 10.1 Concept of similarity 10.2 Kinematical and dynamic similarity 10.3 Scaled physical model and law of similarity 10.4 Dimension analysis examples for the known equations of physical system 10.5 Examples of analog 10.6 Partial similarity in the scaling models 10.7 Special aspects of standard fitting of porous medium model Exercises Appendix Appendix A Flow equation in cylindrical coordinate Appendix B To obtain the solution of one-dimensional unsteady state flow by the Laplace transformation Appendix C Calculation procedure of error function eft(x) Appendix D Calculation procedure of exponential integral function -Ei(-x) Appendix E Calculation procedure of function F(x) Appendix F Conversion relationship between the commonly used units in reservoir engineering Appendix G Factor and signs of commonly used prefixes in SI system and imperial system of unit References
编辑推荐
《石油高等院校特色教材:油气渗流力学(英文版)》可作为石油工程、石油地质、地下水工程、油田化学等专业本科生教材，也可作为相关专业研究生的参考书，还可供从事油气田勘探与开发的科研技术人员参考。
作者简介
《石油高等院校特色教材:油气渗流力学(英文版)》从驱动力和驱动方式出发，在对达西定律分析的基础上，遵循由浅入深的认识规律，详细介绍了单相不可压缩液体的稳定渗流理论、刚性水压驱动下的油井干扰理论、微可压缩流体的不稳定渗流理论、天然气的渗流规律、水驱油理论、油气两相渗流理论、流体在双重介质中的渗流理论、非牛顿液体渗流理论等。