Researching Of Geological Character In Daqing West Part Xinzhan Oil Field

The western peripheral area of Daqing Placanricline locate at the north of SongLiao basin, it has forty years history of oil and gas exploration. Recently, there are new evolve in some exploration sections, which bring out more and more devotion in developed reservoir evaluation and the early developed evaluation year by year. The new open up reserves increases year by year. According to the reservoir geologic character, reservoirs are divided into three types, fractured oil reservoir, complexity oil reservoir, tight oil reservoir.In this article,according to the geological character of the XinZhan oil reservoirs, using the logging constrained inversion technology and the neural net seismic predication technology,the oil and gas features, and the structures the reservoir of the oil field are described,which are used in drilling and exploration. Many kinds of technology are used to research the fractured character, beat out the reservoirs fractured character. First, by observing the core,core magnelog,core differential stress,wave anisotropy test, the fractured developing character and the mine principal stress direction are researched. Second,using micro-contact scan imaging,interactive array induction log and passive seismic technology, fractured direction and develop character are studied. Last, using expansion tracer survey and present value analysis method,the influence of fractures to flood development is analyzed. Furthermore,some effective exploration methods are studied by using references and the successful experiences of domestic fractured oil reservoir technique.By research of complex fractured oil reservoir in XinZhan natural energy exploration, for natural energy exploration production decrease speedily, but in location which geology condition is very well, beginning production is height, using natural energy explore is advisable. As to location which geology condition is bad, beginning production is low, utilize natural energy explore is unbeneficial, maybe utilize waterflood explore typically.Breakthrough character of Complex fractured oil reservoir in XinZhan display at the phenomenon which oil well breakthrough rapidly, after breakthrough water content move upward rapidly, production scale down rapidly. Therefore, water intake per unit thickness shouldn't large.For fractured oil reservoir in XinZhan, in the beginning of oil well Breakthrough, using the technique of period waterflood and calking could concrol water content upward speed. Using the method of closing drowned well or change it to downflow well and applying irregular well network, is effective to improve underground store water rate.This article can be used in directing fractured oil reservoir exploitation.