Abstract: The west slope in Mobei-Mosuowan swell in Junggar basin lies chronically in the target area of oil-gas migration. From the north to the south of this slope, Mobei field, Mosuowan field and Moxizhuang oil field have been found. It is one of the oil-enriched structural belts in the hinterland part of Junggar basin, in which the reservoirs are all distributed along the swell side with arcuate and beaded configuration and controlled by faults, structures and deposition. However, these reservoirs with complex distribution are still of particularity and regularity. This paper analyzes and summarizes the regularity of hydrocarbon accumulation in this area for further exploration here in the future.

Key words: Junggar Basin, fault, Jurassic, source rock, hydrocarbon accumulation