Seismic facies and sedimentary facies of the Member 2 of Kongdian Formation of Paleogene in Dongying and Huimin sags, Bohai Bay Basin
Yin Bingxiang Wang Shangxu Yang Guoquan Tian Haiqin Zheng Herong
1 Faculty of natural resources and information technology ,University of Petroleum,Beijing 102249
2 Faculty of GeoResource and Information, University of Petroleum,Dongying 257061,Shandong
3 Institute of Exploration and Development of SinoPec Corporation,Beijing 100083
Shengli Oil Field,the exploration of oil and gas in deeply buried strata has become the main direction of searching reserves,but a great breakthrough has not been made owing to the lower study degree.So it is very necessary to make a foundational study aiming at Kongdian Formation instead of old thought.In this paper,the seismic reflection corresponding to Kongdian Formation in DongyingHuimin Sag is regarded as an integral seismic sequence from the view of seismic stratigraphy,that can be divided into three subsequences corresponding to the three members of the formation.According to the characteristics of seismic reflection such as amplitude,continuity,interior structures and exterior shapes,seven seismic facies,including medium amplitude medium continuity and parallel or subparallel sheet facies,disorderly filling facies,disorderly progradation facies,hummocky facies,weak amplitude and medium continuity wedge facies,weakvariable amplitude and poor continuity wedge facies,and broom progradation facies,are recognized from the seismic reflection corresponding to Member 2 of Kongdian Formation which is prospective for oil and gas exploration.The sedimentary facies in the lake environment,including semideepdeep lake subfacies,shallow lake and shore subfacies,fandelta and subaqueous alluvial fan, etc., are identified from seismic facies.The favorable areas are identified.Some depositional areas of semideepdeep lake are found to be the important target regions.Some beneficial advices are proposed for further exploration.
About author: Yin Bingxiang,born in 1970,was graduated from University of Petroleum(East China)in 1992,and gained master degree from China University of Geosciences(Beijing)in 1999.Now,he is a candidate for Ph.D.degree at University of Petroleum(Beijing).
Cite this article:
. Seismic facies and sedimentary facies of the Member 2 of Kongdian Formation of Paleogene in Dongying and Huimin sags, Bohai Bay Basin[J]. JOURNAL OF PALAEOGEOGRAPHY, 2004, 6(1): 49-56.
. Seismic facies and sedimentary facies of the Member 2 of Kongdian Formation of Paleogene in Dongying and Huimin sags, Bohai Bay Basin[J]. JOPC, 2004, 6(1): 49-56.
