The Reserch For Fuyu Reservoir Development Potential Of Zhou 13 Cooperative Blocks

Reserves evaluation is the standard to measure development space of a block or Oil field. To predict reserves can lay a good foundation for oilfield development accurately. Zhou 13 block is located in south of Shanzhao sag of east of Daqing placanticline.The block has three reservoir groups and typical nose structure.The block is low porosity and low permeability reservoir, because most area of the block is untapped.We need to evaluate development potentiality of cooperative blocks to understand cooperative blocks development potentiality and value.Therefore to calculate the reserves of Zhou 13 cooperative blocks to provide reference for daqing oil field.According to the collected states,such as drilling, logging, testing and logging data of Zhou 13 cooperative blocks,we can divide the study area into three reservoir groups and 17 small oil layers. On the basis of stratigraphic classification and according to the core and logging datas we can identify two sedimentary sub facies and 12 sedimentary micro-facies. Comprehensive thickness effective sandstone(the effective thickness of superimposed area is more than 4m, try oil production is more than industrial oil flow) productivity and(average test oil yield is above 2.1t/d) reservoir section to determine oil-water distribution and then to divide the blocks into 7 proven undeveloped blocks(Zhao142-54,Zhou25 and so on) 3 outside enlarge blocks(Zhao76-48,Zhou37 and Zhou804).Then apply logging technology to establish effective thickness, effective porosity and original oil saturation Interpretation models of Zhou 13 cooperative blocks.Finally,apply volumetric method to determine the geological reserves of cooperative blocks.