Seismic Reservoir Characteristics For Turbidite Sandbody Of Fan142 Block

With the exploration and development of subtle reservoirs, Turbidite reservoirs have become an important growth point of oil and gas. This kind of reservoir has the characteristic of thin thickness, strong heterogeneity, the lithology changes quickly, low permeability. In recent years, the development of the theory of seismic reservoir plays a huge role in promoting the exploration of oil and gas, to guide the turbidite sand body reservoir exploration and has important guiding significance.Take the creeping turbidite sandbody in lower member of Es3 as the study subject. According to the research approach of seismic reservoir, this paper studied the geological characteristic of creeping turbidite sandbody about reservoir, the integration of wells and seismic in reservoir, reservoir seismic identification and prediction, and reservoir 3D model.Geological data have been used to study the genesis of creeping turbidite sandbody, the distribution of sedimentary facies and the provenance direction. And a sedimentary facies model is established. This paper also studied the basic characteristics of reservoir, reservoir space type, reservoir pore throat structure, physical property and heterogeneity of reservoir are performed.Seismic facies marks of various types of turbidite sandbody are established, and a well-to-seismic calibration of creeping turbidite sandbody reservoir in fan142 block is also made. The relationship between wave impedance and porosity is established. And relationship between seismic amplitude and lithology is also built up.Based on the 3D structural interpretation the reservoir identification and prediction on plane and profile are made. The creeping turbidite sandbody reservoir reflection characteristics are continuous and performed striped type or moundy on wave impedance inversion sections.