Geological Modeling Of The J₂x₁ Reservoir In The Xishanyao Formation In The L9 Well Area Of Luliang Oilfield

After 2015,The development of J₂x₁ reservoir in the Jurassic xishan kiln formation in well L9 area of luliang oilfield was reviewed,founding that factors such as water channeling and poor well condition are the main causes of poor oil testing and production.Therefore,from the reservoir geology of oil field,researching the reservoir single sand body?sedimentary facies?rock characteristics?interlayer?reservoir relations,establishing the three-dimensional spatial distribution data bodies that adjusting to the three-dimensional geological model and reservoir parameters of J₂x₁ reservoir in well L9 area is very necessary to provides theoretical support for the overall development.Through this study,the following insights are obtained:1)Formation of Jurassic xishanyao formation in well L9 area is mainly gray medium-fine sandstone,with sand body thickness of 30.0m?45.0m?average 40.0m,and good continuity.J₂x₁ segment is subdivided into five layers of single sand from top to bottom.named J₂x₁^1-1,J₂x₁^1-2,J₂x₁^1-3,J₂x₁^2-1 and J₂x₁^2-2.The thickness of each single sand layer is 3.0m?10.0m,(the local development of mud and the characteristics between calcareous septum and single sand layer).2)The J₂x₁ delta front subfacies of Jurassic xishanyao formation in well L9 are intact.At the bottom of the coal seam,the bog environment is a shallow lacustrine delta system that gradually transfers to the top of the stable gray mudstone.The sedimentary microfacies of underwater mainly developed distributary channel,estuarine sand bar,far sand bar and intertributary bay.The provenance direction is NW.3)By studying the four relations of reservoir J₂x₁ in xishan kiln formation,the solid drilling data were taken to interpret the structure in detail,and the core,analysis,testing and logging data of sealed core well LUD1305 and other core Wells were collected,the calculation parameters of reservoir reserves have been mastered accurately.4)Through overall modeling and multi-attribute model,the optimal service have been realized for the reservoir of J₂x₁ in well L9 area.The reservoir characteristics can be quantitatively described in three-dimensional space,and the results are highly consistent with the actual data.