Oil And Gas Accumulation In Hailar Basin Houdon Slope

Wunan sub-depression is the focus of exploration area at Hailar Basin. This report analyzes the reservoir type and condition of reservoir formation in Wunan, and then comes to the reservoir distribution law and control factors. There are three major oil and gas migration models in WuNan:vertical migration, lateral migration, multiple-conduit migration. Lateral migration and multiple-conduit migration models are the main transport mode in Wudong ramp region. The three different migration ways control different hydrocarbon accumulation models. NanTun formation one member of Wudong ramp region is the best large-scale structural-lithologic oil pool zone.Integrated oil and gas secondary migration models and the accumulation daynamic system in Wunan, there are three accumulation models in Wudong ramp region:self-sourced sealing formation daynamic system; self-sourced semi-sealing formation daynamic system; self-accidentally-sourced semi-sealing formation daynamic system. And the first two types of them are the most important accumulation system in Wudong ramp region. The main purpose layer of the exploration is NanTun formation one member.NanTun formation two member and Tongbomiao can also form a certain amount of oil and gas reservoir.