The Experts below are selected from a list of 237 Experts worldwide ranked by ideXlab platform

Han Shi - One of the best experts on this subject based on the ideXlab platform.

  • Challenging Design Confronted in a Deepwater/HPHT PiP Tie-Back Flowline System
    Volume 4A: Pipeline and Riser Technology, 2013
    Co-Authors: Jason Sun, Sandra Jakl, Han Shi
    Abstract:

    A challenging problem that pipeline industry has to face in deepwater is the high energy reservoir with high pressure and high temperature. For piping, Flowline, and riser, High Pressure (HP) leads to much thicker pipe wall that increases manufacturing and installation cost. High Temperature (HT) has even wider impact on design since the Flowline System has to operate over a greater temperature range between non-producing situations such as installation and shut down, and the maximum production flow.Subsea tie-back to the existing floating production facility, generally named as Brown Field Development, has many engineering and financial advantages. It becomes more popular in the Gulf of Mexico (GoM), North Sea, and West African due to the economical benefits. This paper presents some of the design challenges of a deepwater subsea tie-back project, which is composed of an 8″ by 12″ pipe-in-pipe (PiP) Flowline loop from three (3) subsea fields to a semi-submersible platform located in the GoM at a water depth of 2,000m (∼6,600ft). Some of key efforts are worth to mention:• Mitigation of thermal expansion and global buckling as facing very soft clay soil;• Transition tie-in of PiP to structure piping - a valiant strength design to meet the deepwater installation loading;• PiP inner pipe lock-in compressive load - effect of Flowline (non-bonded) section length variation and locked-in stress;• Tight installation target box for the separately installed structure mudmat and upper module.This paper presents the solutions that Project team has generated to address these design/installation challenges. Lessons learned from the designs and installations are also presented. Advanced analysis tool — FEA are utilized through the entire design stage, from global 3-D Flowline modeling to local component strength design.Copyright © 2013 by ASME

  • challenging design confronted in a deepwater hpht pip tie back Flowline System
    ASME 2013 32nd International Conference on Ocean Offshore and Arctic Engineering, 2013
    Co-Authors: Jason Sun, Sandra Jakl, Han Shi
    Abstract:

    A challenging problem that pipeline industry has to face in deepwater is the high energy reservoir with high pressure and high temperature. For piping, Flowline, and riser, High Pressure (HP) leads to much thicker pipe wall that increases manufacturing and installation cost. High Temperature (HT) has even wider impact on design since the Flowline System has to operate over a greater temperature range between non-producing situations such as installation and shut down, and the maximum production flow.Subsea tie-back to the existing floating production facility, generally named as Brown Field Development, has many engineering and financial advantages. It becomes more popular in the Gulf of Mexico (GoM), North Sea, and West African due to the economical benefits. This paper presents some of the design challenges of a deepwater subsea tie-back project, which is composed of an 8″ by 12″ pipe-in-pipe (PiP) Flowline loop from three (3) subsea fields to a semi-submersible platform located in the GoM at a water depth of 2,000m (∼6,600ft). Some of key efforts are worth to mention:• Mitigation of thermal expansion and global buckling as facing very soft clay soil;• Transition tie-in of PiP to structure piping - a valiant strength design to meet the deepwater installation loading;• PiP inner pipe lock-in compressive load - effect of Flowline (non-bonded) section length variation and locked-in stress;• Tight installation target box for the separately installed structure mudmat and upper module.This paper presents the solutions that Project team has generated to address these design/installation challenges. Lessons learned from the designs and installations are also presented. Advanced analysis tool — FEA are utilized through the entire design stage, from global 3-D Flowline modeling to local component strength design.Copyright © 2013 by ASME

Jason Sun - One of the best experts on this subject based on the ideXlab platform.

  • challenging design confronted in a deepwater hpht pip tie back Flowline System
    ASME 2013 32nd International Conference on Ocean Offshore and Arctic Engineering, 2013
    Co-Authors: Jason Sun, Sandra Jakl, Han Shi
    Abstract:

    A challenging problem that pipeline industry has to face in deepwater is the high energy reservoir with high pressure and high temperature. For piping, Flowline, and riser, High Pressure (HP) leads to much thicker pipe wall that increases manufacturing and installation cost. High Temperature (HT) has even wider impact on design since the Flowline System has to operate over a greater temperature range between non-producing situations such as installation and shut down, and the maximum production flow.Subsea tie-back to the existing floating production facility, generally named as Brown Field Development, has many engineering and financial advantages. It becomes more popular in the Gulf of Mexico (GoM), North Sea, and West African due to the economical benefits. This paper presents some of the design challenges of a deepwater subsea tie-back project, which is composed of an 8″ by 12″ pipe-in-pipe (PiP) Flowline loop from three (3) subsea fields to a semi-submersible platform located in the GoM at a water depth of 2,000m (∼6,600ft). Some of key efforts are worth to mention:• Mitigation of thermal expansion and global buckling as facing very soft clay soil;• Transition tie-in of PiP to structure piping - a valiant strength design to meet the deepwater installation loading;• PiP inner pipe lock-in compressive load - effect of Flowline (non-bonded) section length variation and locked-in stress;• Tight installation target box for the separately installed structure mudmat and upper module.This paper presents the solutions that Project team has generated to address these design/installation challenges. Lessons learned from the designs and installations are also presented. Advanced analysis tool — FEA are utilized through the entire design stage, from global 3-D Flowline modeling to local component strength design.Copyright © 2013 by ASME

  • Challenging Design Confronted in a Deepwater/HPHT PiP Tie-Back Flowline System
    Volume 4A: Pipeline and Riser Technology, 2013
    Co-Authors: Jason Sun, Sandra Jakl, Han Shi
    Abstract:

    A challenging problem that pipeline industry has to face in deepwater is the high energy reservoir with high pressure and high temperature. For piping, Flowline, and riser, High Pressure (HP) leads to much thicker pipe wall that increases manufacturing and installation cost. High Temperature (HT) has even wider impact on design since the Flowline System has to operate over a greater temperature range between non-producing situations such as installation and shut down, and the maximum production flow.Subsea tie-back to the existing floating production facility, generally named as Brown Field Development, has many engineering and financial advantages. It becomes more popular in the Gulf of Mexico (GoM), North Sea, and West African due to the economical benefits. This paper presents some of the design challenges of a deepwater subsea tie-back project, which is composed of an 8″ by 12″ pipe-in-pipe (PiP) Flowline loop from three (3) subsea fields to a semi-submersible platform located in the GoM at a water depth of 2,000m (∼6,600ft). Some of key efforts are worth to mention:• Mitigation of thermal expansion and global buckling as facing very soft clay soil;• Transition tie-in of PiP to structure piping - a valiant strength design to meet the deepwater installation loading;• PiP inner pipe lock-in compressive load - effect of Flowline (non-bonded) section length variation and locked-in stress;• Tight installation target box for the separately installed structure mudmat and upper module.This paper presents the solutions that Project team has generated to address these design/installation challenges. Lessons learned from the designs and installations are also presented. Advanced analysis tool — FEA are utilized through the entire design stage, from global 3-D Flowline modeling to local component strength design.Copyright © 2013 by ASME

  • Extra High-Pressure High-Temperature (XHPHT) Flowlines: Design Considerations and Challenges
    Volume 3: Pipeline and Riser Technology, 2009
    Co-Authors: Paul Jukes, Ayman Eltaher, Jason Sun, Gary Harrison
    Abstract:

    Development of deep water oil reservoirs in the Gulf of Mexico may encounter conditions where the Flowline product temperatures approach 177°C (350°F), water depths range to 3000 m (10,000 ft), and tie-back distances up to 40 miles are presently being considered. These high Flowline temperatures, water depths and distances, present real challenges to the design of Flowlines. The objective of this paper is to present the design considerations and challenges of designing for extra high pressure high temperature (XHPHT) conditions. For such conditions, a pipe-in-pipe (PIP) Flowline System with thermal expansion management, and a limit state-based design are viable solutions. This paper is split into three main parts and covers (i) design challenges and how they are overcome, (ii) finite element analysis design methods, and (iii) qualification testing of PIP components. The first section presents the main design issues, and challenges, of designing Flowlines for deepwater and high-temperature conditions. The paper discusses aspects of controlling the large axial loads, such as thermal expansion management using buckle initiators and end constraints for Flowlines, and presents current methods. The second section describes the use of advanced finite element analysis (FEA) tools for the design and simulation of PIP Systems, and presents local and global FEA models, using ABAQUS, to investigate the limit state design of XHPHT Flowlines. A 3-D helical response of the inner pipe subjected to high temperature, and the sequential reeling and lateral buckling of Flowlines is also discussed. The final section of the paper describes the qualification testing to be undertaken on PIP components to ensure structural integrity and long-term thermal and structural performance. Qualification testing for PIP components for 177°C (350°F) service is discussed, and includes the testing of centralizers, waterstop seals, thermal insulation and loadshares. This paper is based on both theoretical and practical research work.Copyright © 2009 by ASME

Joost Brugmans - One of the best experts on this subject based on the ideXlab platform.

  • Deepwater Rigid Spools Slugging Flow Fatigue Design
    29th International Conference on Ocean Offshore and Arctic Engineering: Volume 5 Parts A and B, 2010
    Co-Authors: Tao Zhao, Philip Cooper, Joost Brugmans
    Abstract:

    Tie-in spools form an important part of any deepwater Flowline System. Successful designs have the potential to deliver significant savings in fabrication, transportation and installation costs, whilst protecting project schedules. For multiphase Flowlines, slug-induced fatigue damage has emerged as a governing design criterion in recent projects. Spans have become the focus of attention for slug-induced fatigue damage. These may occur at tie-in spools used to connect Flowlines in deepwater developments. Conventional piping design software tools are commonly used for rigid spools design. Limitations/disadvantages of conventional tools were identified by comparison with detailed simulation of critical aspects of the design using more advanced numerical simulation tools. Rigorous 3D numerical dynamic analysis was used to simulate gravity variation of the slugs and bubbles, and the dynamic impact effect due to the passage of slugs through bends. Resonance effects of spools exposed to slugging flow were inspected and the cause of spools resonance was investigated. The consequential fatigue damage was computed using a time-domain FEA and rainflow counting algorithm. While conducting slugging flow fatigue FEA, bespoke pipe-soil interaction models were developed to simulate cyclic lateral and vertical resistances of the very soft seabed soils typically found in deepwater fields. A contact technique with nonlinear normal and decoupled bi-axial tangential interactions was implemented using FORTRAN subroutines. The analysis procedures developed are outlined, and typical spool designs are presented. The paper seeks to understand the slugging flow effects to the deepwater spools fatigue design, fatigue design, especially while the spools resonance can not be mitigated, and provide the optimised spool configuration in which the slugging effects are minimised, taking due account of the complexities outlined above.Copyright © 2010 by ASME

Sandra Jakl - One of the best experts on this subject based on the ideXlab platform.

  • Challenging Design Confronted in a Deepwater/HPHT PiP Tie-Back Flowline System
    Volume 4A: Pipeline and Riser Technology, 2013
    Co-Authors: Jason Sun, Sandra Jakl, Han Shi
    Abstract:

    A challenging problem that pipeline industry has to face in deepwater is the high energy reservoir with high pressure and high temperature. For piping, Flowline, and riser, High Pressure (HP) leads to much thicker pipe wall that increases manufacturing and installation cost. High Temperature (HT) has even wider impact on design since the Flowline System has to operate over a greater temperature range between non-producing situations such as installation and shut down, and the maximum production flow.Subsea tie-back to the existing floating production facility, generally named as Brown Field Development, has many engineering and financial advantages. It becomes more popular in the Gulf of Mexico (GoM), North Sea, and West African due to the economical benefits. This paper presents some of the design challenges of a deepwater subsea tie-back project, which is composed of an 8″ by 12″ pipe-in-pipe (PiP) Flowline loop from three (3) subsea fields to a semi-submersible platform located in the GoM at a water depth of 2,000m (∼6,600ft). Some of key efforts are worth to mention:• Mitigation of thermal expansion and global buckling as facing very soft clay soil;• Transition tie-in of PiP to structure piping - a valiant strength design to meet the deepwater installation loading;• PiP inner pipe lock-in compressive load - effect of Flowline (non-bonded) section length variation and locked-in stress;• Tight installation target box for the separately installed structure mudmat and upper module.This paper presents the solutions that Project team has generated to address these design/installation challenges. Lessons learned from the designs and installations are also presented. Advanced analysis tool — FEA are utilized through the entire design stage, from global 3-D Flowline modeling to local component strength design.Copyright © 2013 by ASME

  • challenging design confronted in a deepwater hpht pip tie back Flowline System
    ASME 2013 32nd International Conference on Ocean Offshore and Arctic Engineering, 2013
    Co-Authors: Jason Sun, Sandra Jakl, Han Shi
    Abstract:

    A challenging problem that pipeline industry has to face in deepwater is the high energy reservoir with high pressure and high temperature. For piping, Flowline, and riser, High Pressure (HP) leads to much thicker pipe wall that increases manufacturing and installation cost. High Temperature (HT) has even wider impact on design since the Flowline System has to operate over a greater temperature range between non-producing situations such as installation and shut down, and the maximum production flow.Subsea tie-back to the existing floating production facility, generally named as Brown Field Development, has many engineering and financial advantages. It becomes more popular in the Gulf of Mexico (GoM), North Sea, and West African due to the economical benefits. This paper presents some of the design challenges of a deepwater subsea tie-back project, which is composed of an 8″ by 12″ pipe-in-pipe (PiP) Flowline loop from three (3) subsea fields to a semi-submersible platform located in the GoM at a water depth of 2,000m (∼6,600ft). Some of key efforts are worth to mention:• Mitigation of thermal expansion and global buckling as facing very soft clay soil;• Transition tie-in of PiP to structure piping - a valiant strength design to meet the deepwater installation loading;• PiP inner pipe lock-in compressive load - effect of Flowline (non-bonded) section length variation and locked-in stress;• Tight installation target box for the separately installed structure mudmat and upper module.This paper presents the solutions that Project team has generated to address these design/installation challenges. Lessons learned from the designs and installations are also presented. Advanced analysis tool — FEA are utilized through the entire design stage, from global 3-D Flowline modeling to local component strength design.Copyright © 2013 by ASME

Tao Zhao - One of the best experts on this subject based on the ideXlab platform.

  • Deepwater Rigid Spools Slugging Flow Fatigue Design
    29th International Conference on Ocean Offshore and Arctic Engineering: Volume 5 Parts A and B, 2010
    Co-Authors: Tao Zhao, Philip Cooper, Joost Brugmans
    Abstract:

    Tie-in spools form an important part of any deepwater Flowline System. Successful designs have the potential to deliver significant savings in fabrication, transportation and installation costs, whilst protecting project schedules. For multiphase Flowlines, slug-induced fatigue damage has emerged as a governing design criterion in recent projects. Spans have become the focus of attention for slug-induced fatigue damage. These may occur at tie-in spools used to connect Flowlines in deepwater developments. Conventional piping design software tools are commonly used for rigid spools design. Limitations/disadvantages of conventional tools were identified by comparison with detailed simulation of critical aspects of the design using more advanced numerical simulation tools. Rigorous 3D numerical dynamic analysis was used to simulate gravity variation of the slugs and bubbles, and the dynamic impact effect due to the passage of slugs through bends. Resonance effects of spools exposed to slugging flow were inspected and the cause of spools resonance was investigated. The consequential fatigue damage was computed using a time-domain FEA and rainflow counting algorithm. While conducting slugging flow fatigue FEA, bespoke pipe-soil interaction models were developed to simulate cyclic lateral and vertical resistances of the very soft seabed soils typically found in deepwater fields. A contact technique with nonlinear normal and decoupled bi-axial tangential interactions was implemented using FORTRAN subroutines. The analysis procedures developed are outlined, and typical spool designs are presented. The paper seeks to understand the slugging flow effects to the deepwater spools fatigue design, fatigue design, especially while the spools resonance can not be mitigated, and provide the optimised spool configuration in which the slugging effects are minimised, taking due account of the complexities outlined above.Copyright © 2010 by ASME