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Importance of unconventional mindsets in further fine exploration of mature blocks:a case study of Qingnan oilfield,eastern Dongying Depression
Author(s): 
Pages: 441-448
Year: Issue:  4
Journal: Oil & Gas Geology

Keyword:  mindset changeexploration in mature blocksQingnan oilfieldblocks in eastern Dongying Depression;
Abstract: After years of intensive exploration ,blocks in eastern Dongying Depression of Shengli Oilfield Company yielded few and few new discoveries in past couple years .Explorationists of Shengli Oilfield Company wisely realized then that new mindsets and open mindness were urgently needed to guide further fine explration of these aging blocks .Then in 2013,the 75th discovery-Qingnan Oilfield-was disoveried in eastern blocks of Dongying Depression .This seccess can be attributed to the following reasons:an exploration strategy shift from structural traps on slopes to lithologic traps in sags ;a shift of understanding of sedimentary settings from deep turbidite fan to shore-shallow lacustrine;an exploration view turning from unfavorable migration zones to favorable migration zones;a change of understanding of sedimentary facies from beach-sandbodies of subsag-scale to local sand bars .These reasons all made the importance of new mindsets and open mindness to stand out in each critical step of discovering the field .However ,what behind all these are still concrete basic works and innovative technologies .
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