Multilateral Systems, pumpsandpipesmdhc

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  • Multilateral Systems, pumpsandpipesmdhc

    1. 1. Daniel Craig Well Bore Construction Engineering Manager Baker Hughes Inc. November 12, 2007 Multilateral Systems
    2. 2. <ul><ul><ul><ul><ul><li>What is a Multilateral well? </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>What is the value to the customer? </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Baker Oil Tools Multilateral Systems </li></ul></ul></ul></ul></ul>Topics
    3. 3. What is a Multilateral Well? <ul><li>A multilateral well is typically a well connecting two or more “standard well types”. </li></ul>Vertical Deviated Horizontal Multilateral + + =
    4. 4. Typical Multilateral Configurations What is a Multilateral Well? Dual Stacked Trilateral Fork Herringbone
    5. 5. Enhance Existing Production with a Multilateral Well. What is the Value to the Customer ?
    6. 6. <ul><li>162,660’ Drilled = 125,248’ within the producing zones from 8 wells on 2 pads! </li></ul>What is the Value to the Customer ?
    7. 7. Simplicity Pays What does the TAML classifications mean? (Technical Advancement of Multilaterals)
    8. 8. TAML Levels <ul><li>Level 1 - Open/Unsupported junction </li></ul>Level 2 - Main bore cased and cemented, Lateral bore open Level 3 - Main bore cased and cemented; Lateral bore cased but NOT cemented Level 4 - Both main bore and lateral bore cased and cement Level 5 - Pressure integrity at the junction achieved with completion equipment Level 6 - Pressure integrity at the junction achieved with casing
    9. 9. TAML Level 1 <ul><li>Open / Unsupported junction </li></ul><ul><li>ADVANTAGES </li></ul><ul><li>Simplest construction </li></ul><ul><li>Stable in hard formations </li></ul><ul><li>DISADVANTAGES </li></ul><ul><li>Not stable in unconsolidated formations </li></ul><ul><li>Limited life due to hole collapse </li></ul><ul><li>No positive re-entry capability </li></ul><ul><li>Limited completion options </li></ul><ul><li>Not pressure containing </li></ul>
    10. 10. TAML Level 2 <ul><li>Main bore cased and cemented </li></ul><ul><li>Lateral bore open </li></ul><ul><li>ADVANTAGES </li></ul><ul><li>Permanent datum point in the well </li></ul><ul><li>Multiple laterals </li></ul><ul><li>Controlled re-entry </li></ul><ul><li>DISADVANTAGES </li></ul><ul><li>Limited to new well applications </li></ul><ul><li>Limited completion options </li></ul><ul><li>No pressure integrity at the junction </li></ul>
    11. 11. TAML Levels 3 Main bore cased and cemented Lateral bore cased but NOT cemented <ul><li>ADVANTAGES </li></ul><ul><li>New well and existing well applications </li></ul><ul><li>Permanent datum point in the well </li></ul><ul><li>Multiple laterals </li></ul><ul><li>Positive re-entry </li></ul><ul><li>Open hole support </li></ul><ul><li>DISADVANTAGES </li></ul><ul><li>No pressure integrity at the junction </li></ul>
    12. 12. Level 3 HOOK Hanger
    13. 13. Level 3 HOOK Hanger
    14. 14. TAML Level 4 Both main bore and lateral bore cased and cement <ul><li>ADVANTAGES </li></ul><ul><li>New well and existing well applications </li></ul><ul><li>Permanent datum point in the well </li></ul><ul><li>Multiple laterals </li></ul><ul><li>Positive re-entry </li></ul><ul><li>Open hole support </li></ul><ul><li>Adaptable to all formation types </li></ul><ul><li>DISADVANTAGES </li></ul><ul><li>No pressure integrity at the junction </li></ul>
    15. 15. TAML Level 5 Pressure integrity at the junction achieved with completion equipment (Cement IS NOT Acceptable ) <ul><li>ADVANTAGES </li></ul><ul><li>New well and remedial applications </li></ul><ul><li>Permanent datum point in the well </li></ul><ul><li>Positive re-entry </li></ul><ul><li>Open hole support </li></ul><ul><li>Adaptable to all formation types </li></ul><ul><li>DISADVANTAGES </li></ul><ul><li>Restricted re-entry access </li></ul>
    16. 16. TAML Level 6 Pressure integrity at the junction achieved with casing (Cement IS NOT Acceptable) <ul><li>ADVANTAGES </li></ul><ul><li>Positive re-entry </li></ul><ul><li>Mechanical and hydraulic support </li></ul><ul><li>Adaptable to all formation types </li></ul><ul><li>Numerous completion options </li></ul><ul><li>DISADVANTAGES </li></ul><ul><li>Limited pressure differential ratings </li></ul><ul><li>Larger well bore requirements </li></ul>
    17. 17. Level 6 Junctions <ul><li>Stackable Splitter </li></ul>Deep Set Splitter FORMation Junction
    18. 18. TAML Complexity Versus Flexibility Complexity of Installation Completion Flexibility 1 2 3 4 6 5
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