Fine Evaluation With Well Logging Data And Application On Heavy Oil Reservoir In LS Block

With the development of LS block heavy oil being exploited,The original criteria and understanding of logging interpretation and evaluation can not fully satisfy the requirement of geology about the block.The accuracy of interpretation and evaluation is not precise enough,so the relationship between reservoir heterogeneity and steam cavity expansion of SAGD can not be revealed in LS Block,and it greatly hinders raising coefficient of heavy oil being exploited.So the fine interpretation model is established afresh,based on the data of cores,production and oil exploitation tried,and monitoring data.Criteria for reservoir classification is differentiated,at the same time the new criteria of logging interpretation and evaluation was established afresh.In the course of the parametric model is established,hydrocarbon correction and unified porosity correcti has been completed before bulkvolume fraction of shale is calculated with resistivity curve.It solves the problem that the fraction of shale can not be calculated accurately in the high resistivity heavy oil reservoir at the original logging interpretation model.the porosity can be calculated by the time difference parameter in the formation factor method,and it also simulates the relationship of the formation factor and depth.the result prove that the calculation result and core analysis result have the high consistency.It innovative designs and uses iterative technique and optimization method in the whole calculation model,and it makes the final parameters can be calculated more precise and more relevant analysis data of laboratory core.The feature that reservoir distributes of LS block is analyzed based on the new results of logging interpretation and evaluation,it roundly recognizes and understands the tight reservoir and different types of septal interlayer,and the new criteria that recognizes and evaluates septal interlayer fit for LS Block was established afresh.Mensurablely varied criteria between the changes of temperature curve in oil well and different Physical properties is established originally among the production of the SAGD,The 3D model of geological reservoir is constructed,and The relationship between the expansion of SAGD vapor chamber and the interlayer is Better to been revealed...