The Integrated Study Of The Reservoir Description And The Reservoir Simulation Of The Lower S2 In Wen33 Fault-Block Of Hollow Dongpu

According to the integrated research mentality, this work unifies closely two big prop technologies (the reservoir description and the reservoir numerical simulation) and conducts the comprehensive study from the static state, the dynamic and the perspective of different geology and the development to the Wen 33 S2 under reservoir Hollow Dongpu. To take deposition cycles - the thickness of the rock, this area will be divided into eight sand groups 58 sub-layer.A contrast skeleton profile and the basic database of sub-layer will be established.Start from the areal structure growth and distribution rule, the focus straightening out the fault pattern and minor fault combination and distribution and to remaining oil influence in fault block west, northern part complex zone. The north complex zone mainly grows three bandings from west to east. The fault in the western complex zone orderly distribute and compose of a series of the fault which leans west, Wendong compensation fault. It is the rift valley belt which Wendong fault and Wen 140 faults support on both sides.Study of sedimentary strata characteristics indicate that this area is shallow lakes Delta sedimentary system, growing five kinds of micro-phase such as the canal,between the canals, front sand, far sand ,mud and so on.On the basis of data correction in the environment and standardized data, analysis of the relations of injected water and four property ,and the impact of the logging data on the reflection ,the reservoir parameters interpretation model established.The research of the reservoir heterogeneity reveals the heterogeneity between the layers and the inner layer to be strong. The permeability changes quickly in the plane, the distribution is extremely non-uniform, heterogeneity is serious.Using a modelling method controlled by facies, three-dimensional model of the reservoir parameter was established.Be output directly the data body of a 3D geological model built up by Petrel modeling software to a VIP numerical simulation software, set up a geological model for reservoir simulation, achieving reservoir description and simulation integration.Through vertical on the breakdown of the strategy, details of the relative infiltration curve type and its supporting technology applications, and heterogeneous properties in the reservoir numerical model be characterized.The the historical fitting indicated that each development index matching degree is quite high.Through organicly combining dynamic and comprehensive analysis and numerical simulation, the remaining oil distribution be described with the remaining oil saturation, the effective thickness of the remaining oil and remaining oil in abundance, respectively. The research indicated that the remaining oil forms with the distribution is controlled mainly, the sedimentary facies zone, reservoir heterogeneity and the development factor. Nearby the fault, the region clamped with faults , high structural parts ,the remaining oil is enriched.The submarine distributary channel micro-facis has high recovery, the flooding is serious, remaining oil scattered distribution. These Minin phase such as Front sand, between the canal and far sand have a relatively low recovery level, the flooding is light, basically remaining oil sectors-connecting distribution. In the plane the location the well pattern is imperfect, injection-production well pattern is not matching , is the remaining oil relatively rich region.By analyzing the potential of the residual oil , the specific ideas excavated the residual oil was proposed.