TIW CORPORATION

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TIW CORPORATION A PEARCE INDUSTRIES COMPANY
P.O. Box 35729 Houston, Texas 77235-5729 U. S. A.
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TIW Abrasive Jet Drilling System (JETDRILL)

• Abrasive Jet Casing Cutter (JCUTTER)
• Abrasive Jet Hole Reamer (JREAMER)
• Abrasive Jet Horizontal Drill (JETDRILL)

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TIW Abrasive Jet Drilling System (JETDRILL)
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Well Site Equipment
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Well Site Equipment
A Water Supply B Pump Unit C Sand Blender D
Densometer E Compensator F Hydraulic Unit G
Mud Tank H Data Unit
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Downhole Procedures
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Abrasive Jet Casing Cutter(JCUTTER)
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Abrasive Jet Casing Cutter(JCUTTER)

• Run JCUTTER to casing cutting point
• Pump abrasive slurry while rotating and moving
  cutter up and down
• Trip out after cutting casing

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Abrasive Jet Hole Reamer(JREAMER)
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After cutting casing run abrasive jet hole
reamer (JREAMER)
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Extend JREAMER nozzles to correct distance to
ream hole
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Possible Casing Cutting Patterns with CCUTTER
CREAMER
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After under-reaming move JREAMER upward to rotate
nozzles back into tool cavity trip out of hole
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JREAMER (Summary)
Run-In Hole
Extend Jets Under-ream
Retract Jets Trip out of Hole
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JREAMER Reamed Section Ream a 30 dia x 10 ft.
section
30
10 FT.
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Abrasive Jet Horizontal Drill(JETDRILL)
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JETDRILL Anchor
The JETDRILL anchor is set using standard
wireline or hydraulic setting tools
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JETDRILL Orienting Guide
A special guide that orients the JETDRILL to the
proper angle for jet drilling is adjusted at the
surface
UNTAPPED Production
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JETDRILL Canister
A predetermined length of coiled tubing equal to
desired lateral length is run inside a canister
and the JETDRILL assembly is then run to bottom
on a work string
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JETDRILL COLLET

• The JETDRILL is oriented in the anchor
• Compressive weight engages a COLLET in the anchor

UNTAPPED Production
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JETDRILL BENDING
Additional compressive load actuates a unique
articulated section, starting the 90 degree bend
in the coil tubing
UNTAPPED Production
PIN PIVOT
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JETDRILL ACTIVATION

• The coil tubing is released from the canister by
  rotating the work string
• Jet drilling is initiated while continuing to set
  weight on the coil tubing
• The coil tubing extends through the articulated
  body as weight is applied at the surface

UNTAPPED Production
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The jet bits operating at 6,000 to 8,000 psi
drill 3 to 4 inch diameter horizontal holes up to
300 ft long, to overcome formation damage and
water coning problems, and to tap new production
zones
TAPPED Production
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JETDRILL can be retrieved and re-run at different
angles with the same anchor setting
NEW TAPPED Production
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Giving Multiple Boreholes from One Position
Setting
Top View Well Bore
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JETDRILL Summary

• Erode casing section with JCUTTER
• Erode 30 in x 10 ft hole section with JREAMER
• Set JETDRILL ANCHOR at desired depth
• Run JETDRILL and orient in ANCHOR
• Apply weight to engage collet in ANCHOR
• Release coil tubing by rotation and initiate jet
  drilling. Continue to set-down weight on coil
  tubing until desired distance is drilled
• Pick up and retrieve JETDRILL assembly from well

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JETDRILL Advantages

• Convert vertical wells to horizontal
• Drill multiple laterals from existing wells
• Increase production from existing wells
• Penetrate near wellbore damage
• Overcome water coning problems
• Intersect new production zones
• Short radius enables pinpoint accuracy
• Patent pending

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Setting the Pace in Horizontal Completions
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