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缝洞型碳酸盐岩油藏溶洞垮塌机制与裂缝扩展规律分析研究

Abstract第5-7页
Acknowledge第8-19页
Chapter 1 Introduction第19-38页
    1.1 Research Background第19-21页
    1.2 Research Status第21-34页
        1.2.1 Fractured-vuggy Carbonate Reservoirs第21-26页
        1.2.2 Seepage-Stress Coupling Theory第26-30页
        1.2.3 Extended Finite Element Method第30-34页
    1.3 Research Contents第34-36页
    1.4 Innovation第36-37页
    1.5 Research Route第37-38页
Chapter 2 Physical Modeling of the Stability of Deep Caverns in Tahe OilField in China第38-93页
    2.1 Introduction第38-40页
    2.2 Mechanical Parameters Test of the Carbonate第40-52页
        2.2.1 Field Sampling and Standard Rock Sample Preparation第40-43页
        2.2.2 Mechanical test of the carbonate rocks第43-48页
        2.2.3 The Microscopic Fracture Mechanism of the Fracture-CavityCarbonate第48-52页
    2.3 Development of Model Similar Material第52-63页
        2.3.1 Similarity Theory第52-55页
        2.3.2 Model Materials Selection第55-56页
        2.3.3 Determination of Similar Material Ratio第56-63页
    2.4 Development of the Ultra High Pressure 3D Loading Model Test Systemwith Intelligent Numerical Control Function第63-72页
        2.4.1 The Model Counter-Force Frame第64-66页
        2.4.2 Ultra High Pressure 3D Gradient Loading System第66-68页
        2.4.3 Intelligent Hydraulic Loading System第68-70页
        2.4.4 Data Collection and Analysis System第70-72页
    2.5 Geo-mechanical Model Test for the Collapse and Failure Mechanism ofthe cavern in Tahe oilfield第72-87页
        2.5.1 Model test scheme第72-76页
        2.5.2 The Fabrication Process of the Model第76-77页
        2.5.3 Test Procedure of the Model第77-78页
        2.5.4 Analysis of Model Test Results第78-87页
    2.6 Numerical Analysis and Verification第87-91页
        2.6.1 Numeric Calculation Model第87-89页
        2.6.2 Analysis of Calculation Results第89-91页
    2.7 Conclusions第91-93页
Chapter 3 Numerical Simulation of Cave Collapse and Crack Closure第93-125页
    3.1 Introduction第93-94页
    3.2 Critical Collapse Depth of the Cave第94-111页
        3.2.1 Dichotomous Depth Reduction Method to Determine the CriticalCollapse Depth of the Cave第94-98页
        3.2.2 Calculation Result and Analysis of Cave Collapse第98-108页
        3.2.3 The Predictor Formula of Cave Collapse Depth and Application第108-111页
    3.3 Crack Width Changes Prediction Model第111-123页
        3.3.1 Numerical Analysis Model and Calculation Condition第111-112页
        3.3.2 Calculated Result and Analysis of Crack Closure第112-120页
        3.3.3 Predictor Formula of the Crack Width Change and Its Application第120-123页
    3.4 Conclusions第123-125页
Chapter 4 Establishment of Crack Closure and Propagation Criteria第125-135页
    4.1 Introduction第125页
    4.2 Crack Closure Criterion第125-129页
        4.2.1 The Expression of the Crack Width under Water Pressure第126-128页
        4.2.2 Simplification of Crack Closure Criteria第128-129页
    4.3 Crack Propagation Criterion第129-134页
        4.3.1 Minimum Strain Energy Density Criterion第130-131页
        4.3.2 Maximum Energy Release Rate Criterion第131-132页
        4.3.3 The Maximum Circumferential Tensile Stress Criterion第132-134页
    4.4 Conclusions第134-135页
Chapter 5 The Study of the Crack Propagation Model under Seepage-StressCoupling Based on XFEM第135-177页
    5.1 Introduction第135-136页
    5.2 Governing Equation第136-143页
        5.2.1 Governing Equation of the Porous Medium第137-141页
        5.2.2 Governing Equation of the Fluid Flow in Cracks第141-143页
    5.3 Discretization of Governing Based on XFEM第143-147页
        5.3.1 Spatial Discretization第143-146页
        5.3.2 Time Domain Discretization第146-147页
    5.4 Realization of Extend Finite Element Program based on ABAQUS第147-157页
        5.4.1 Program Development Process第147-149页
        5.4.2 Investigation of the Hydraulic Fracture Propagation第149-157页
    5.5 Numerical Simulation of Crack Propagation第157-175页
        5.5.1 Effects on Crack Propagation by the Water Flow Action第158-161页
        5.5.2 Influence of Crack Angle and Crack Length on Crack Propagation第161-166页
        5.5.3 Propagation Rules of Multiple Cracks第166-170页
        5.5.4 Crack Propagation Law of Different Cave Type第170-175页
    5.6 Conclusions第175-177页
Chapter 6 Conclusions and Recommendations第177-180页
    6.1 Conclusions第177-178页
    6.2 Recommendations第178-180页
Reference第180-200页
Resarch Experiment第200-201页
Publications第201-202页
Patents第202页
Honors & Awards第202-203页
学位论文评阅及答辩情况表第203页

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