Genetic analysis and potential research of low resistance oil reservoirs in Bohai L oilfield
L60 of L Oilfield has developed a set of low resistance oil sand,which is an important potential for oilfield production.Using a combination of macroscopic and microscopic research methods,the macroscopic sedimentary environment and microscopic genesis of low resistivity oil reservoirs are studied.The results indicate that the sedimentary period of the low resistance strata in L60 formation was a shallow water braided river delta front sedimentary facies,with weak hydrodynamics.The main controlling source provided abundant intermediate acidic volcanic materials,and the ancient climate changed from warm climate to dry and cold climate.These factors are macroscopic factors in the formation of low resistance oil sand.On a microscopic level,higher bound water content and higher clay mineral content are the main controlling factors for the formation of low resistivity oil sand.Based on the analysis of the genesis and development performance data of low resistance oil reservoirs,it is believed that using horizontal wells to develop low resistance oil reservoirs has advantages,and low water flooded areas and low resistance oil reservoirs of lower L60 are the main development potential targets.This study has guiding significance for the development of low resistivity oil reservoirs.
Low resistivity reservoirBound water contentClay mineral content
万方数据
维普
