AGHAJARI

Aghajari

AGHAJARI is the oil with gas condensate field in Iran, 130 kilometres from the Abadan city, one of the largest in the world. It is the part of the Persian Gulf oil and gas basin. It has been discovered in 1938, and is developed since 1945. The initial recoverable reserves are 1,283 million tonnes of oil and 263 billion cubic metres of gas. It is in the conjunction with the sharply manifested asymmetric anticline fold with the size of 6x60 kilometres.

The structure on the roof of the Asmari suite (Oligocene - Lower Miocene) comprises the two domes, which are separated by the shallow saddle. Each of the domes contains the gas cap. There are productive there the thick (over 300 metres) stratum of the limestones of the Asmari suite and the Upper Cretaceous limestones. The massive arched reservoirs are hydrodynamically (fluidly) connected. The collector is porous with cracks. The oil-bearing level is at the depth of 1,240 metres, the oil-water contact is at the depth of 2590 metres, the gas-oil contact is at the depth of 1400 metres. The initial reservoir pressure is 28.2 megapascals, the temperature is 77 degrees Celsius. The density of the oil is 850 kilograms per cubic metre, the viscosity is 5.7 centipoises, the content of the sulfur is 1,4%. There are operated 60 gushing wells there, the annual extraction is 31.4 million tonnes (1978); the cumulative extraction (to 1979) is 951 million tonnes. There are the oil pipelines from there to the Bandar-e Mahshahr port and to the Abadan city to the oil refinery plant. The field is operated by the "National Iranian Oil Company" ("NIOC") national company.