Oil Reservoir Formation Conditions Of Tana Depression

Tana Deprssion is a secondary tectonic unit in Tamtsag depression,depression area of 3500km2,the basal maximum buried depth of 4600m,the seismic and drilling data analysis,and the formation and Hailar basin lithology,electrical and seismic reflection feature contrast,Tanan depression formation from the bottom up into the basement,lower Cretaceous the Tongbomiao formation,Nantun Formation,Damoguaihe group,Yimin group the Qingyuangang group and as well as the third series and the quaternary.The main exploration target layer as a substrate and the lower Cretaceous Tongbomiao formation,Nantun Formation and Damoguaihe group.Based on the literature research and the basic petroleum geological research,focus on the characteristics and evolution,stratigraphic sequence and sedimentary structure four aspects of research phase,reservoir and source rock;combined with the other aspects of the work,the tectonic evolution of the students,reservoir,caprock development control action of tectonic evolution,effect on the formation of traps the tectonic evolution,the migration and accumulation of oil and gas control and the structure of the pre reservoir reformation and oil gas two times of migration control,analysis of reservoir forming condition and distribution rule of oil and gas reservoirs for oil and gas accumulation mode in Tanan depression,oil and gas is established;based on oil and gas reservoir forming model of structural reservoir favorable development zone prediction and evaluation,and optimize favorable drilling;reservoir evaluation work finally to carry out structural reservoir,reserves parameter to study and calculate the oil controlled reserves.