Fine Reservoir Description Of Dujiatai Reservoir

Shuguang Oilfield is located in the middle part of the west slope of Liaohe basin.Its area is 200km~2.There are seven sets of oil bearing strata on the top and bottom.The geological structure is rather complex.There are multiple oil layers and various oil products coexist in the oil area.Since drilling began in 1973,the production scale of oil field has been expanding in the past 40 years.In 1992,it reached the highest level in 1992.Its annual production capacity reached 292.2×10~4t.Since 2000,with the development of super heavy oil resources which are difficult to develop,they have been put into development.The oil field has entered the stage of replacement and stable production.The annual crude oil is stable at more than 2 million tons.Along with the further development of oilfield,facing a serious shortage of reserve resources,heavy oil and super heavy oil in later cycles throughput and oil steam ratio is low,the economic benefit gradually becomes poor,thin oil into the "double high" period,various contradictions become extremely prominent.Over the years,based on the regular injection development of thin oil in Oilfield and the development rule of heavy oil and super heavy oil steam huff and puff,we have been exploring the feasibility of various technologies to transform reservoir development mode,and provide technical direction for the continuous and stable development of Shuguang OilfieldAt present,Shuguang Oilfield has carried out pilot experiments on thin oil chemical flooding,polymer flooding and heavy oil super heavy oil steam flooding,hot water flooding,SAGD,immiscible displacement,flue gas drive and horizontal well development,and initially grasped the advantages and disadvantages of various development technologies.In this paper,preferably in Shuguang oil Shu1 area,the largest reserves,has been in the ordinary heavy oil throughput development at the end of the block Du 66 research on reservoir geological characteristics and development law of throughput.Through the study of reservoir geological characteristics,reservoir characteristics and reservoir engineering development law,summed up the development of heavy oil steam reservoir,recognition of reservoir at present throughout the development stage,firmly grasp the present development trend of change of reservoir,explore the development mode conversion technology,for domestic and foreign similar reservoir development stage to further improve the direction of recovery.