CONSTRUCTION AND REPAIR OF WELLS

1
CONSTRUCTION AND REPAIR OF WELLS
Steel Polymer Pipes, Flexible Drill Stems for
Mini Coiled Tubing (application for underground
repair of wells)
2
CONSTRUCTION AND REPAIR OF WELLS
Logging Pipes of High Pressure(electro-hydraulic
drill stems)
Construction particulars

1. Internal pipe
2. Cross reinforce tape
3. Intermediate cover
4. Longitudinal logging amour
5. External cover
6. Isolated conductors

3
CONSTRUCTION AND REPAIR OF WELLS
Logging Pipes of High Pressure(electro-hydraulic
drill stems)
Technical characteristics

• Basic Pipes Parameters
• Internal diameter 3-45mm
• External diameter 10 85mm
• Maximum internal pressure 25 ???
• Maximum external pressure 25 ???
• Breaking strength - 15 - 150 ?N
• Bend radius 40 D
• Quantity and section of conductors little to no
  limitation
• Chemical stability little to no limitation
• Running lengthlimitation by transportation drum

4
CONSTRUCTION AND REPAIR OF WELLS
Logging Pipes of High Pressure(electro-hydraulic
drill stems)
Cable ends
Assembly sequence
nozzle
Screw drill
5
CONSTRUCTION AND REPAIR OF WELLS
Logging Pipes of High Pressure(electro-hydraulic
drill stems)
Umbilical (drill stem) technologies

• Washing-over paraffin-hydrate plugs in the Tubing
• Drilling out bitumen gritty plugs
• Supply of chemical reagents under the pump
• Nitrogen gas lift
• Development of wells by electro centrifugal pump
• Drilling hydro monitor perforation
• Well steam generator

6
CONSTRUCTION AND REPAIR OF WELLS
Logging Pipes of High Pressure(electro-hydraulic
drill stems)
Ground equipment
Logging hoist
Stationary winch
Mobile complex

• Complete set
• Chassis KAMAZ 6?6
• Winch
• Cable layer
• High pressure pump
• Hydrualic manipulator
• Wellhead equipment
• Injector

7
CONSTRUCTION AND REPAIR OF WELLS
Logging Pipes of High Pressure(electro-hydraulic
drill stems)
Advantages over the traditional coiled tubing

• Operations with drums of smaller diameters
• Operating without using injector
• 3. Simultaneous combination of hydraulic
  effect and management or control by means of
  electrical signals
• 4. Acceptable equipment and drill-stems
  (umbilicals) costs
• 5. Transfer of corrosive chemical liquids
  (acids, alkalis) due to high corrosion
  resistance of drill-stems
• 6. Longer service period in comparison with
  steel pipe
• 7. Considerable time reduction when installing
  equipment at the well

8
CONSTRUCTION AND REPAIR OF WELLS
Thank You for Attention!