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  • Internal Use Only

    SERVICE TOOLS

  • Internal Use Only

    Technical Excellence Centers

    Phase 1Service Tools

    DiscussionFebruary 2007

    HALLIBURTON

  • Internal Use Only

    Retrievable Packer

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    Service Tools Application

    Stimulation

    Squeeze (Remedial) Cementing

    Pressure and Dry testing

    Well Production

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    Service Tools Application

    Short Term:

    A few hours to several days

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    Service Tools - Benefit

    Interval Isolation

    Casing Protection

    Allowable Pressure

    System Volume

    Wellbore Fluid Circulation

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    Service Tools - Risk

    Retrieval

    Perforations

    Collapse

    Slurry vs. Clean Fluid

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    Service Tools

    Retrievable

    Drillable

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    Retrievable Service Tools

    Compression or Tension

    Re-settable

    Tool Combinations

    Drill Out Avoided

    Getting Stuck

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    Going in the Hole

    Compression Set Packer

    Tubing, Etc.

    HydraulicHold-Down

    Packer Elements(Sealing Elements)

    Casing

    J Slot

    Lower SlipsOr Slips

    Drag Blocks

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    Retrievable Packer Retrievable Packer

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    Animation

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    Retrievable Packers

    Due to differential pressures acting upon the hydraulic hold-down slips, a Circulating valve is required for equalizing tubing/annulus pressure.

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    Circulating Valve

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    Pkr W/Circulating Valve

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    Retrievable Service Tools

    Depending Upon Tool Design:

    10,000 PSI Differential

    400 F

    2-3/8 to 20

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    Retrievable Service Tools

    Packer Sealing Elements:

    Variable Hardness

    Soft Low Weight on Compression Set Packers

    Hard Higher Weight on Compression Set Packers

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    Exercise

    5-1/2 Retrievable packer to be set at 8,000 ft.

    2-7/8, 6.5lb/ft, Upset tubing

    Desire 15,000 lb compression

    Use Red Book Pg 16

    Ignore bouyancy effect

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    Exercise

    5-1/2 Retrievable packer to be set at 8,000 ft.

    For the previous exercise, what is the effect of cooling the pipe down by an average of 40F, as might be the case during a fracture treatment ?

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    Retrievable Service Tools

    Tension Packers:

    Reverse Mechanism Compared to Compression Set

    Deep

    Shallow

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    Retrievable Bridge Plugs

    May be ran separately or in tandem withA retrievable packer

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    Retrievable Bridge PlugIn Set Position withOvershot

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    Drillable Service ToolsCompression (Squeeze Action)

    MechanicalHydraulicWireline (Accuracy)Not Re-settable

    Tool Combinations Limited

    Drill Out Required

    Getting Stuck Avoided

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    Drillable Packer

    Up to:10,000 psi350F

    3-1/2 Through 20

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    Multiple CompositeBridge Plugs

    May be set to provide zonalisolation for single or multiple-zone stimulation. Drillout is usually complete in less than 60minutes.

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    Wellhead Isolation ToolWellhead Isolation Tool

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    Installed on Tree

    Wellhead IsolationTool

    Wellhead IsolationTool

    SERVICE TOOLSRetrievable PackerGoing in the Hole Retrievable Packer AnimationMultiple CompositeBridge PlugsWellhead Isolation Tool

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