In October 1982, Conoco Irian Jaya as operator: and partners: Pertamina, Inpex Bintuni Limited, and Moeco Irian Jaya Company, mobilized construction equipment from Singapore to the KBS "A" contract area in Irian Jaya, Indonesia for the purpose of constructing a base camp and drill three exploratory sites.
What made this construction effort different from others previously used in Irian Jaya; was that incorporated several new and unique features, namely:
A turnkey approach to construction; that is Conoco providing completeset of specifications and conditions with contractor assuming risks fora lump sum payment.
Special equipment designed by contractor for Irian Jaya operations.
An incentive to compensate or penalize contractor for helicopter hours flown below or above a predetermined number.
Structural steel pile platform designs for two swamp locations (Ayot and Aum), as opposed to the more conventional corduroy timber log-plank arrangement.
Drilling rig pads designed for specific heli-rig with limited extraspace.
All work was successfully completed within the time frame stipulated in the contract, that is five months from the time the contractor was notified to begin mobilization of equipment, materials and personnel.
Conoco Irian Jaya and partners: Pertamina, Inpex Bintuni Limited, and Moeco Irian Jaya Company, conducted their first heli-rig exploratory drilling/jungle swamp construction campaign in the Kepala Berung Selation Block "A" (KBS "A") Contract Area, Irian Jaya, in the period 1980–1981. During this campaign 5 drill sites were prepared to accept a drilling rig with all related equipment. Three of the locations were in jungle/swamp terrain (Ayot, Wirisagar-3, and West Wirisagar): and two were in high ground, dense jungle, remote areas (Tanemot, and Rawarra).
Construction methods and drilling support activities were heavily influenced by methods predominantly used in the area: namely using corduroy type construction for swamp/marsh areas, and contractors supplying equipment and personnel on time/material basis at unit prices. personnel on time/material basis at unit prices. p. 12–17 p. 12–17