Abstract: The Hutubi river formation (Cretaceous)and the Xishanyao formation (Jurassic) in Lu 9 Well Block of Luliang oilfield belong to low amplitude structural reservoirs characterized by lots of payzones,big vertical span, sandmud laminated zones,serious heterogeneity, complicated oil vs. gas,low resistivity, difficult recognition between payzones and water layers,etc. This paper is for the purpose of speeding up development rhythm and changing the proved reserves into the commercial reserves,and presents the scientific and reasonable classification of development sequences of the reservoirs,determination of the well pattern and spacing for them by means of the experiences from developing multizone petroliferous sequences at home and abroad,integrated with technical economic evaluation approaches,modern reservoir engineering process and modern reservoir characterization and assessment methods,in which correlation configuration between the low amplitude anticline and the main oil-bearing sand body is studied.

Key words: low resistivity, multizone, reservoir, developing sequence, well pattern, well spacing