Liangjialou Oilfield Detailed Reservoir Description

The reservoir of Liangjialou oilfield is the turbidite fans sediment. For the production of the oilfield, it is necessary to recognize the geological structure, sediment and micro-sedimentary facies, the space distribution of the reserve sand, the heterogeneity, the type of the reserve space and its continuity. For the adjustment plan of oilfield development and the aim of high production rate, it is also important to setting the geological model of the reservoir. It is study in this paper, i.e fine division and correlation, fine geological structure, the sedimentary and micro-sedimentary, the second explain of logging data. Three dimensional fine geological model is setup. The geological model is used for research of the remind oil distribution in reservoir engineering and simulation.The main results includes:(1) The middle sand-3 sedimentary is studied, it is the theoretical base of the sub-zone fine division and correlation and the research of reserve sedimentary. The sub-zone diversion plan and the data table of sub-zone correlation is completed, the difficult correlation situation of its data and sand is changed. By the sub-zone diversion data of the isochronous sedimentary, the micro-structure diagram of main sub-zone are completed. The new faulted basin system is set up, the micro-faces units about main river are divided, the main development effect factors are the net of subaqueous channel, the basin sedimentary and model is completed.(2) It is described for the origin types of the basin reserve sand, the reserve characteristics of sand and the space distribution. Using the robust simulation method and selection of model, the two-dimensional model and three dimensional model about Liang-bei area Sand-3 reservoir. On the base of researching about the reserve parameters and reserve heterogeneity.