A study on the flow units of chang-6 reservoir in Panguliang,Jing'an oilfield

The division of reservoir flow unit is an important method in the understanding heterogeneity of reservoir、evaluateing effect of waterflood and distributing of remaining oil.In this paper,we take Panguliang areas Chang-6 formation in Jing`an oilfield as an example,we select the permeability,porosity,reservoir quality index,standardized porosity exponent and flow zone index as a unit of study area flow parameters of reservoir flow units which has been divided and discussion.The flow units in Chang-6 reservoir in Panguliang,Jing'an oilfield,it can be classified into 3 types:type A,type B and type C,with the reservoir properties and the permeability properties changing from superior to inferior.there is a good correspondence with sediment microfacies、distribution of sand body and physical property and the classification results which is able to truly and objectively reflect the geologic features of ultra-low permeability reservoir,such poor property characteristics and strong heterogeneity.The relational conclusions were obtained and rationalization proposals were put forward in order to improve the effect of reservoir development.