Study On Oil And Water Layer Interpretation Method In LG Oilfield

Putaohua reservoir is the main target layer in LG oilfield.But because of the oil-water distribution in this area is very complex,oil-water layer development(oil-water layer geological reserves accounted for 67% of total reserves;statistical area exploration appraisal wells oil test data,test oil and oil-water layer accounted for total number of 53%),the identification is difficult thus,the effects of the preparation and reserves perforation design of effective order.For this reason,this paper carried out the research on the identification method of complex oil and water in LG oilfield,and provided technical support for oilfield production capacity construction.In this paper,through the collection of logging,logging,coring,oil testing data,standardization of logging curve by using the trend analysis method,the corrected AC,GR curve intersection diagram,determine the rationality of the curve,so as to establish reservoir "four properties" and "segment in the partition,basic classification on the fluid identification method of different types of reservoirs,zoning classification established oil layer interpretation model.Through the rock electric experiment,selecting the suitable water and different pore types interpretation parameters,calculation method of zoning of water saturation,water production rate calculation model is established,based on the model of water to establish qualitative and quantitative with layers,through the analysis of the low resistivity oil layer,high resistance water causes the establishment of low resistivity reservoir and high resistivity water layer identification method.This paper through the core properties of the existing test data,heavy mineral content and association,granularity analysis of clay mineral content and relative content,capillary pressure,and a number of combinations of measured data and statistics,according to the sedimentary facies,tectonic features,research methods to explain LG oil-water layer,establish the fine geological model,zoning and classification established oil layer interpretation chart and interpretation model of water content,LG oilfield area development to lay a solid foundation.