LEADER 11236nam 2200493 450 001 9910558486203321 005 20231110212429.0 010 $a981-19-0960-1 035 $a(MiAaPQ)EBC6942711 035 $a(Au-PeEL)EBL6942711 035 $a(CKB)21441196700041 035 $a(PPN)26152190X 035 $a(EXLCZ)9921441196700041 100 $a20221111d2022 uy 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aProceedings of the fourth international technical symposium on deepwater oil and gas engineering /$fedited by Baojiang Sun [and four others] 210 1$aGateway East, Singapore :$cSpringer,$d[2022] 210 4$d©2022 215 $a1 online resource (423 pages) 225 1 $aLecture Notes in Civil Engineering ;$vv.246 311 08$aPrint version: Sun, Baojiang Proceedings of the Fourth International Technical Symposium on Deepwater Oil and Gas Engineering Singapore : Springer Singapore Pte. Limited,c2022 9789811909597 320 $aIncludes bibliographical references and index. 327 $aIntro -- Preface -- Organization -- Conference Committee -- Chairs -- Members (Alphabet Sequence) -- Youth Forum on Gas Hydrate Committee -- Chairs -- Members (Alphabet Sequence) -- Scientific Committee -- Chairs -- Members (Alphabet Sequence) -- Publication Committee -- Chairs -- Contents -- Deepwater Drilling and Completion -- Prospects of Special Ocean Engineering Equipment Application in Chinese Marine NGH Trial Production -- 1 Introduction -- 2 Floating Body -- 2.1 Applications in Existed Marine NGH Trial Production Cases -- 2.2 Technology and Development Directions -- 3 Underwater Devices -- 3.1 Remote Operated Vehicle -- 3.2 Seabed Mining Vehicle -- 4 Conclusions -- References -- Analysis of Influence of Hydrate Decomposition on Underwater Wellhead Stability -- 1 Introduction -- 2 Numerical Model of Effect of Hydrate Decomposition on Underwater Wellhead Stability -- 3 Evolution of Underwater Wellhead Stability with Drilling Time -- 4 Conclusion -- References -- Study on Collapse Strength of Sand Control Screen Pipe with Corrosion Defect Under External Pressure -- 1 Introduction -- 2 Finite Element Model Established -- 2.1 Assumptions -- 2.2 Loads and Boundary Conditions -- 2.3 Material Parameters of Screen Pipe -- 3 FEM Results -- 4 Parametric Analysis -- 4.1 The Influence of Corrosion Defects Location on Collapsing Strength of Screen Pipe -- 4.2 The Influence of Corrosion Defect Depth on the Collapsing Strength of Screen Pipe -- 4.3 The Influence of Corrosion Defect Width on the Collapsing Strength of Screen Pipe -- 4.4 The Influence of Corrosion Defect Length on the Collapsing Strength of Screen Pipe -- 4.5 Effect of Hole Arrangement Parameters on Collapsing Strength of Screen Pipe -- 5 Conclusion -- References -- Prospects of Horizontal Well Drilling in Marine Gas Hydrate Reservoir -- 1 Introduction. 327 $a2 Horizontal Well Drilling Technology -- 2.1 Conventional Horizontal Well Drilling Technology -- 2.2 Shallow Horizontal Well Drilling -- 2.3 Methane Hydrate Drilling Technology -- 3 Drilling-Related Challenge -- 3.1 The Ability to Control Dogleg Severity -- 3.2 Reservoir Mechanical Properties are Unstable -- 3.3 Wellhead Stability -- 3.4 Wellbore Instability -- 3.5 High Probability of Geological Hazards -- 4 Prospects for Horizontal Drilling Technology in Submarine Hydrate Layer -- 4.1 Hydro Jet Radial Drilling -- 4.2 Wellhead Steering Technology -- 4.3 Surface Conductor Jet Drilling Technology -- 4.4 Dynamic Kill Drilling Technology -- 4.5 Optimize the Drilling Fluid -- 5 Concluding Remarks -- References -- Research on Numerical Simulation of Wellbore Stability of Natural Gas Hydrate Reservoir Considering Dynamic Drilling Process -- 1 Introduction -- 2 Wellbore-Reservoir Coupling Heat and Mass Transfer Model -- 2.1 Heat and Mass Transfer Model of the Fluid Flow in the Wellbore -- 2.2 Heat and Mass Transfer Model of the Fluid Flow in the NGH Formation -- 2.3 Wellbore Stability Model of NGH Reservoir -- 3 Simulation Results and Discussion -- 3.1 Basic Parameters -- 3.2 Simulation Results -- 4 Conclusion -- References -- Experimental Study on Strength Characteristics of Hydrate Argillaceous Siltstone Under Immersion of Drilling Fluid -- 1 Introduction -- 2 Rock Sample Preparation and Experimental Methods -- 2.1 Sample Preparation -- 2.2 Experimental Method -- 3 Experimental Results and Discussion -- 3.1 Calculation Method of Rock Mechanical Parameters -- 3.2 Variation of Mechanical Parameters of Argillaceous Siltstone Immersed in Drilling Fluid -- 4 Conclusion -- References -- Integrity Evaluation Method of Completion Screen in Deepwater Gas Reservoirs with High Temperature and High Pressure -- 1 Introduction -- 2 Framework -- 3 Simulation Method. 327 $a3.1 Accuracy Change of Screen -- 3.2 Screen Clogging and Sand Retaining -- 3.3 Screen Corrosion -- 3.4 Screen Erosion -- 4 Evaluation System -- 4.1 Comprehensive Simulation for Screen at Well Bottom -- 4.2 Evaluation Index and Grade Division -- 5 Application -- 6 Conclusion -- References -- Study on Throttling Characteristics of Hydraulic Cylinder Throttle Valve and Control Strategies for MPD -- 1 Introduction -- 2 Experimental Section -- 2.1 Equipment and Materials -- 2.2 Experimental Scheme and Process -- 3 Experimental Results and Discussion -- 3.1 Analysis on the Experiment of Throttling Characteristics with Drilling fluid's Different Displacements in Pure Liquid Flow -- 3.2 Analysis on the Experiment of Throttling Characteristics with Drilling fluid's Different Displacements in Gas-Liquid Two-Phase Flow -- 3.3 Analysis on the Experiment of Throttling Characteristics with Different Initial Void Fractions in Gas-Liquid Two-Phase Flow -- 4 Pressure Control Strategies of Hydraulic Cylinder Throttle Valve -- 5 Conclusion -- References -- Estimation of Formation Parameters Based on Void Fraction Measurement Outside Riser in Deepwater Drilling -- 1 Introduction -- 2 Calculation of Gas-Liquid Two Phase Flow -- 2.1 Gas-Liquid Two Phase Flow Model -- 2.2 Calculation of Gas Void Fraction -- 3 Gas Void Fraction Measurement -- 4 Formation Parameter Prediction -- 4.1 Prediction Method -- 4.2 Identifying the Formation Parameters -- 4.3 Case Study -- 5 Conclusion -- References -- Natural Gas Hydrate Production -- Visual Experimental Study on Hydrate Dissociation in Porous Media -- 1 Introduction -- 2 Experimental Section -- 2.1 Materials and Apparatus -- 2.2 Experimental Procedures -- 3 Experimental Results and Discussion -- 3.1 A Certain Amount of Free Gas and Free Water in Pores Before Hydrate Dissociation. 327 $a3.2 Hydrate Dissociation at Different High Phase Saturation -- 4 Conclusion -- References -- Numerical Simulation of Combined Depressurization Production of Natural Gas Hydrate and Shallow Gas -- 1 Introduction -- 2 Numerical Simulation of Combined Depressurization Production of NGH and Shallow Gas -- 2.1 Coexistence Mode of NGH and Shallow Gas -- 2.2 Model of Numerical Simulation -- 2.3 Numerical Simulation Scheme Design -- 3 Results and Discussion -- 3.1 Gas Production Performance of Combined Production Under Different Coexistence Modes -- 3.2 Influencing Factors of Gas Production Dynamics -- 4 Conclusion -- References -- Numerical Simulation on Sensitivity of Related Parameters for Hydrate Dissociation by Depressurization -- 1 Introduction -- 2 Methodology -- 2.1 Mathematical Model -- 2.2 Initial Values and Boundary Conditions -- 2.3 Finite Difference and Discrete Solution -- 3 Model Validation -- 4 Simulation Results -- 4.1 Intrinsic Permeability -- 4.2 Initial Porosity -- 4.3 Initial Hydrate Saturation -- 5 Conclusion -- References -- Numerical Investigation on Dissociation Performance of Natural Gas Hydrate in Reservoirs by Depressurization -- 1 Introduction -- 2 Numerical Model -- 2.1 Governing Equations -- 2.2 Model Descriptions -- 2.3 Initial and Boundary Conditions -- 3 Results and Discussions -- 3.1 Description of Specimens -- 3.2 Variation of Hydrate, Gas, and Water Saturation -- 3.3 Hydrate Dissociation Front -- 4 Conclusion -- References -- The Facilitative Behaviors of Underlying Gas Toward Hydrate-Bearing Sediment Formation and Dissociation -- 1 Introduction -- 2 Experimental Section -- 2.1 Materials -- 2.2 Apparatus -- 2.3 Experimental Steps -- 3 Experimental Results and Discussion -- 3.1 The Formation of Methane Hydrate with the Underlying Gas -- 3.2 The Dissociation of Methane Hydrate with the Underlying Gas -- 4 Conclusion. 327 $aReferences -- The Investigation of Efficiency During the Exploitation of Gas Hydrates by Depressurization -- 1 Introduction -- 2 Numerical Modeling -- 3 Simulation Results and Discussion -- 3.1 Governing Mechanisms -- 3.2 Two Distinct Processes -- 4 Conclusion -- References -- Gas Hydrate Exploitation Technology by Mixed Gas Replacement -- 1 Introduction -- 2 CO2and N2/H2Gas Mixture Replacement Exploiting -- 2.1 Replacement Mechanism -- 2.2 Technology Development -- 3 Sweep of N2/H2 -- 4 Conclusion and Outlook -- References -- Experimental Study on Methane Hydrate Formation and Dissociation in the Sediments of South China Sea -- 1 Introduction -- 2 Experimental Section -- 2.1 Materials and Apparatus -- 2.2 Experimental Procedure -- 3 Experimental Results and Discussion -- 3.1 Temperature and Pressure Characteristics of Reservoir Decomposition of Underlying Gas Hydrates -- 3.2 Effect of Underlying Gas on Decompression Rate of Hydrate Reservoir -- 3.3 Depressurization and Decomposition of Hydrate Formation Under Different Pressure Methods -- 4 Conclusion -- References -- Numerical Simulation of Producing Natural Gas Hydrate by Air Injection -- 1 Introduction -- 2 Numerical Simulation -- 2.1 Model Construction -- 2.2 Model Parameters -- 3 Results and Discussion -- 3.1 Gas Production and Water Production Law -- 3.2 Hydrate Saturation Variation Law -- 4 Conclusion -- References -- Numerical Study of Reservoir Stability in Depressurized Exploitation of Natural Gas Hydrate Reservoir -- 1 Introduction -- 2 Mathematical Model -- 2.1 Reaction Kinetics Equations of Hydrate -- 2.2 Energy Conservation Equations -- 2.3 Mass Balance Equations -- 2.4 Solid Mechanics Equations -- 3 Experimental Results and Discussion -- 3.1 Geometry Model Description -- 3.2 Initial Conditions -- 4 Results and Discussion -- 5 Conclusions -- References. 327 $aNumerical Simulation of the Mining of Heterogeneous Hydrate Reservoir Considering Formation Sand Production and Subsidence. 410 0$aLecture Notes in Civil Engineering 606 $aPetroleum engineering 615 0$aPetroleum engineering. 676 $a665.5 702 $aSun$b Baojiang 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910558486203321 996 $aProceedings of the fourth international technical symposium on deepwater oil and gas engineering$92973136 997 $aUNINA