Hydrocarbon Dynamics (ASX:HCD) has received an order worth AU$182,000 from a major South Sudan operator, majority-owned by Petronas, Malaysia's state-owned energy company, for its newest product, Bit-Flow D75.

A payment of AU$91,000 has already been received, with the remaining sum to be paid upon proof of shipment delivery in Port Klang, Malaysia.

The operator has tested HCD's products and found them effective at reducing viscosity in two of their crude oil grades.

The potential annual revenue associated with this opportunity is estimated to be about AU$3,000,000 if the initial field treatment is successful, and it may provide similar opportunities with other operators in the region.