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《Fault-block Oil & Gas Field》 2002-05
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Study on Characters of Muddy Fractural Reservoirs in Luo Jia area

Yin Kemin(Doxin Oil Production Plant,ShengLi Oilfield Co.Ltd.SINOPEC,Shangdong 257094,P.R.China),Li Yong and Ci Xinghua et al.  
In Luojia area of JiYang depression,fractural reservoirs are fonud in muddy and shaly rocks of No.3 member in Sha HeJie formation,and high oil production is obtained in some wells.The lithology of productive formation includes oil shale,oil mudstone,limy mudstone and marlstone.Studies on cord and thin section shows that there are 4 types of fractures:tectonic fracture,foliation interbeds,constricted fissure and fracture during to abnormal pressure.The genetic mechanism and identifying characters of these fractures are different,and statistical figures shows that tectonic fracture is the most important type of all.Regional tectonic stress,lithology,lithofacies,thickness and depth of rock are main factors controlling the tectonic fracture distribution.
【CateGory Index】: P618.13
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