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Multilateral Systems, pumpsandpipesmdhc
 

Multilateral Systems, pumpsandpipesmdhc

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Multilateral Systems, pumpsandpipesmdhc Multilateral Systems, pumpsandpipesmdhc Presentation Transcript

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