WIRELINE UNIT REQUIREMENTS

Unit

- Minimum pull capacity :

-   Slickline, 0.108”, 0.125”                                     - 80% of breaking strength

-   Braided/electric cable, 3/16”, 7/32”                    - 80% of breaking strength

-   Braided/Electric cable, 5/16”, 15/32”, 1/2”        - 5 tons

·     Minimum wire length capacity 1.5 times expected operational depth or 5,000 m (16,400 ft)

·     Drop protection above the cabin

·     Splint safe windows

·     Double skinned insulated cabin

·     Minimum one (1) extra seat

·     All electrical equipment zone 1 certified

·     Spooling device or back-up drum

·     A brake system with minimum capacity equal to cable breaking strength

·     Hydraulic drive system capable holding the load in neutral position

·     Minimum jarring requirements :

-   Slickline drum with 200 kg (440 lbs) tension: Cable speed after 4m acceleration: 3 m/s

-   Braided line drum with 1000 kg (2200 lbs) tension: Cable speed after 4m acceleration: 1 m/s

·     Logging speed range requirements - all size cables :

-   Low speed: 90 m/hr (295 ft/hr) constant logging speed at outer diameter of drum

-   High speed: 3000 m/hr (9,840 ft/hr) constant logging speed at outer diameter of drum

Instrumentation

Be located such that operator at all times can read:

·     Depth

·     Tension

·     Cable speed

 Depth indicator system

·     Calibration range of +/-1.5 m for a depth of 5,000 m (+/- 4.9 ft for a depth of 16,400 ft )

 Weight indicator system

·     Calibration accuracy of 0.5%

 Additional for logging unit

·     Supplied with a slip ring collector certified for zone 1

·     Automatic overpull shut-down system

 Sheave & Hay pulley

·     Minimum sheave diameter:

- Slickline, 0.108”                                                 - 0.36 m (14”)

- Slickline, 0.125”                                                 - 0.36 m (14”)

- Braided/electric cable, 3/16”, 7/32”,                  - 0.36 m (14”)

-   Braided/electric cable, 5/16”                               - 0.48 m (19”)

- Electric cable, 15/32”                                          - 0.53 m (21”)

- Electric cable, 1/2”                                              - 0.56 m (22”)

·     Load limit (LL) requirement for sheave & hay pulley: Maximum line pull x 2 x SF

·     Minimum safety factor (SF): 2.

·     All locking devices to have a double safety feature

 Wireline and fishing clamps

·     Two (2) for each line size

·     Load limit (LL) requirement: Line breaking strength x SF

·     Minimum safety factor (SF): 2

·     All locking devices to have a double safety feature

Hydraulic power pack:

·     Diesel engine certified for Zone 2 or electric motor certified for Zone 1

·     A gas detector with an audible/visible alarm installed on air inlet of diesel engine

·     Drip pan

·     Manual ESD function.

·     ESD panel loacted in a safe area Data Acquisition system:

Pressure test pump:

·     Working pressure 345 bar (5,000 psi) / 690 bar (10,000 psi) / 1034 bar (15,000 psi) as required.

·     Pump rate:

-   50 l/min at 69 bar (1,000 psi)

- 8 l/min at 345 bar (5,000 psi), 5 l/min at 690 bar (10,000 psi) and 1034 bar (15,000 psi)

·     Fluid tank: 1000 liter

·     Pressure recorder included

Wellhead pump:

·     Working pressure 345 bar (5,000 psi)/ 690 bar (10,000 psi) / 1034 bar (15,000 psi) as required

·     Minimum two (2) separate pumps included in skid

·     Check valve on return line to fluid reservoir