XU Chang gui, JIANG Pei hai, WU Fa dong, YANG Bo, LI Da liang. Discovery and Sedimentary Characteristics of the Neogene Delta in Bozhong Depression and Its Significance for Oil and Gas Exploration[J]. Acta Sedimentologica Sinica, 2002, 20(4): 588-594.
| Citation:
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XU Chang gui, JIANG Pei hai, WU Fa dong, YANG Bo, LI Da liang. Discovery and Sedimentary Characteristics of the Neogene Delta in Bozhong Depression and Its Significance for Oil and Gas Exploration[J]. Acta Sedimentologica Sinica, 2002, 20(4): 588-594.
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Discovery and Sedimentary Characteristics of the Neogene Delta in Bozhong Depression and Its Significance for Oil and Gas Exploration
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1 Bohai Research Institute of CNOOCRC, Tianjin Tanggu 300452;
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2 China University of Geosciences,Beijing 100083
- Received Date: 2001-11-08
- Rev Recd Date:
2002-01-10
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Abstract
The sedimentary facies of Neogene in Bohai sea area used to be considered as fIuviaI facies over a Iong time because of the Iimitation of the expIoration degree. Therefore,the risks of the seaI rock in the Neogene expIoration were beIieved to be great. The standpoint has restrained the Neogene expIoration in Bohai sea area. With the increasing of the expIoration degree,it is recognized that Bozhong depression of Bohai sea area is one of the main catchment area for Bohai bay basin in Neogene. The Iacustrine and deItaic depositionaI systems were discovered in Neogene in Bozhong depression in the recent years. This paper focuses on eIaborating the evidences of the existence of the Iacustrine and deItaic depositionaI systems and the characteristic of the deIta depositionaI system（incIuding normaI Iacustrine deIta and braided deIta）.The discovery of Iacustrine and deItaic depositionaI systems in Bozhong depression have a very important significance in the oiI and gas expIoration. The deveIopment area of the deItaic systems wiII be the major fieId of the expIoration in Bohai sea area in the future.
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