Helicopter guidelines for land seismic & helirig operations - OGP

International Association of Oil & Gas Producers
same procedures and precautions (including test sampling) as used for refueling
the aircraft.
4. It is recommended that, after filling, frangible “witness” seals be applied on
transport tanks, to allow verification that contents have not been tampered
with.
5. Fuel dispensed into small bladders or re-used drums should be used within one
month.
D.5.3 Forward staged fuel should be stored with the same precautions as applicable to the
bulk storage depot. Requirement for secondary containment may be waived for short
term storage (subject to local government regulations!).
D.6 Fuel provision, quality control and contamination checks
D.6.1 When fuel is taken from a supplier / refinery or delivered to the fuel storage, the
following must be performed before this fuel is accepted and transferred to the
storage:
1. The fuel must be documented and this documentation must be checked to
ensure the fuel received:
a. Is of the correct grade and type.
b. Will not reach its expiry date (one year from manufacturing) before use.
2. If delivered by tanker, the tank must be allowed to settle for 1 hour for each 1
foot of fuel depth.
3. After settling, enough fuel must be pumped out of the tank and disposed of in
reject storage to ensure the transfer pump and piping is filled with fresh fuel.
4. A 2 liter sample must be taken into a clean glass recipient with screw top,
marked with date and origin and:
a. Visually inspected for color, clarity and contamination.
b. Tested for water in suspension with approved water testing paste or capsules.
c. Stored with the documentation of the fuel batch delivered, until this batch
has been consumed.
5. After filling, the storage tanks must be allowed to settle 1 hour for each 1 foot
of fuel depth before any fuel is delivered to the helicopter.
D.6.2 All required fuel samples as noted in the paragraphs below should be taken into a
clean glass recipient with screw top, marked with date and origin and:
1. Visually inspected for color, clarity and contamination.
2. Tested for water in suspension with approved water testing capsules or kits.
Water testing paste is not effective at detecting water in suspension.
3. Retained until flights are completed for that day.
D.6.3 Prior to the first flight of each day, the helicopter fuel tank sumps must be drained
and sampled into one container (½ liter minimum sample size, unless specified
differently by the airframe or water detection device manufacturer).
D.6.4 Prior to the first refueling of each day, samples must be taken from the fuel delivery
system:
1. Each fuel tank sump (2.0 liters).
2. Each fuel filter and monitor (2.0 liters).
3. Each fuel nozzle, prior to first refueling of the day (2.0 liters).
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