The Characteristics Of The Tectonics And The Distribution Of Oil And Water In Talaha

Talaha is located at the western Daqing oilfield in the north of Songliao Basin,it has become the main larget production layer recently.This fault belt is characterized by complex development background,long volution history.It is a complex fault zone which is widely concerned in the study of distribution of oil and gas accumulation in shallow strata of Songliao Basin.The east of Talaha fault belt is the most abundant hydrocarbon generation in Songliao Basin.The oil and gas fields between the Q ijia-Gulong depression and this fault zone are widely dispersed.The sparse distribution in the west of the fault zone indicates the importance and complexity o f the fault zone in hydrocarbon migration.To study the regional tectonic setting and formation mechanism of the fault zone d uring the Q ingshankou Formation,activity of late Yaojia Formation,It is expected to reveal the spatial distribution and structural features of the fault zone during the large-scale migration of oil and gas.The formation conditions of primary reservoir in late Nenjiang Formation were further clarified.This paper studies the inversion activity of the fault zone and the status quo of reconstruction.It can be helpful to the destruction,residues and reassembling process of the original reservoir.In this paper,the seismic interpretation results of middle shallow layer are combined and compiled,On its basis,the faults on the T2 and T1 reflection layer are classified by stages.At the same time,combined with the deep seismic skeleton profile interpretation,the paper studies the function of deep geological structure on the development of middle shallow fault system.The characteristics of the tectonic stress field are studied.Combined with the above content,the structural evolution characteristics and oil and water distribution regularity and accumulation mechanism of Talaha fault zone were studied.Through this research,to reveal Talaha fault zone oil-water distribution has a certain practical significance for controlling factors,will also be favorable for Talaha in the future evaluation optimization blocks and provides the basis for rational formulation development well perforation scheme.