service tools

Internal Use Only

SERVICE TOOLS

Internal Use Only

Technical Excellence Centers

Phase 1Service Tools

DiscussionFebruary 2007

HALLIBURTON

Internal Use Only

Retrievable Packer

Internal Use Only

Service Tools Application

Stimulation

Squeeze (Remedial) Cementing

Pressure and Dry testing

Well Production

Internal Use Only

Service Tools Application

Short Term:

A few hours to several days

Internal Use Only

Service Tools - Benefit

Interval Isolation

Casing Protection

Allowable Pressure

System Volume

Wellbore Fluid Circulation

Internal Use Only

Service Tools - Risk

Retrieval

Perforations

Collapse

Slurry vs. Clean Fluid

Internal Use Only

Service Tools

Retrievable

Drillable

Internal Use Only

Retrievable Service Tools

Compression or Tension

Re-settable

Tool Combinations

Drill Out Avoided

Getting “Stuck”

Internal Use Only

Going in the Hole

Compression Set Packer

Tubing, Etc.

HydraulicHold-Down

Packer Elements(Sealing Elements)

Casing

“J” Slot

Lower SlipsOr “Slips”

Drag Blocks

Internal Use Only

Retrievable Packer Retrievable Packer

Internal Use Only

Animation

Internal Use Only

Retrievable Packers

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

Internal Use Only

Circulating Valve

Internal Use Only

Pkr W/Circulating Valve

Internal Use Only


Depending Upon Tool Design:

10,000 PSI Differential

400 F

2-3/8” to 20”

Internal Use Only


Packer Sealing Elements:

Variable Hardness

“Soft” – Low Weight on Compression Set Packers

Hard – “Higher” Weight on Compression Set Packers

Internal Use Only

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

Internal Use Only

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 ?

Internal Use Only


Tension Packers:

Reverse Mechanism Compared to Compression Set

“Deep”

“Shallow”

Internal Use Only

Retrievable Bridge Plugs

May be ran separately or in tandem withA retrievable packer

Internal Use Only

Retrievable Bridge PlugIn Set Position withOvershot

Internal Use Only

Drillable Service ToolsCompression (Squeeze Action)

MechanicalHydraulicWireline (Accuracy)Not Re-settable

Tool Combinations Limited

Drill Out Required

Getting “Stuck” Avoided

Internal Use Only

Drillable Packer

Up to:10,000 psi350F

3-1/2” Through 20”

Internal Use Only

Multiple CompositeBridge Plugs

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

Internal Use Only

Wellhead Isolation ToolWellhead Isolation Tool

Internal Use Only

Installed on Tree

Wellhead IsolationTool

Wellhead IsolationTool

service tools

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