CONSTRUCTION AND REPAIR OF WELLS

Steel Polymer Pipes, Flexible Drill Stems

for Mini Coiled Tubing

(application for underground repair of wells)

CONSTRUCTION AND REPAIR OF WELLS

Logging Pipes of High Pressure(electro-hydraulic drill stems)

Construction particulars

3

5

1 2

4

12

7

3

4 5

6

1

2

3

4

5

6

1. Internal pipe

2. Cross reinforce tape

3. Intermediate cover

4. Longitudinal logging amour

5. External cover

6. Isolated conductors

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 МРа

•Maximum external pressure– 25 МРа

•Breaking strength - 15 - 150 кN

•Bend radius – 40 D

•Quantity and section of conductors– little to no limitation

•Chemical stability – little to no limitation

•Running length–limitation by transportation drum

CONSTRUCTION AND REPAIR OF WELLS

Logging Pipes of High Pressure(electro-hydraulic drill stems)

Cable ends

Assembly sequence:

nozzle

Screw drill

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

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 6х6•Winch•Cable layer•High pressure pump•Hydrualic manipulator•Wellhead equipment•Injector

CONSTRUCTION AND REPAIR OF WELLS

Logging Pipes of High Pressure(electro-hydraulic drill stems)

Advantages over the traditional coiled tubing

1. Operations with drums of smaller diameters

2. 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

Thank You for Attention!

CONSTRUCTION AND REPAIR OF WELLS