柴达木盆地鄂博梁Ⅲ号构造新近系沉积环境演化及物源分析

doi:10.7605/gdlxb.2015.01.005

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Abstract

Eboliang Ⅲ structure is one of the macrostructures in Qaidam Basin with trap area up to 470km² in the Neogene Xiayoushashan Formation. In this paper,the authors studied the systematically the sedimentary environment evolution and provenance direction in Eboliang Ⅲ structure by using the new data of Wells Eshen 1,Eshen 2,and Eshen 7, which were drilled in succession at the east and west structural high points in recent three years. By synthetic analysis with petrology,palaeontology and geochemistry,some new points about the sedimentary environment evolution and provenance direction were obtained. The structure from the Shangganchaigou Age to Shizigou Age was under a deposition process with constantly deepening water, which was completely opposite to the previous viewpoint. Altun Mountains provenance provided main sedimentary clastics for Eboliang Ⅲ Structure. On this basis,the single well and multi well analysis has been developed to confirm the sedimentary evolution process,providing a theoretical basis for further exploration and deployment,and obtaining the corresponding exploration effect.

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	Articles by authors
	Kong Hongxi
	Zhao Jian
	Hou Zesheng
	Si Dan
	Zai Zhiwei
	Ma Jinye
	Shen Yushan

Key words： Qaidam Basin Eboliang Ⅲ structure Neogene sedimentary environment evolution provenance

Received: 27 May 2014 Published: 01 February 2015

ZTFLH:

P512.2

About author: Kong Hongxi, born in 1967, senior engineer, graduated from Geology Department of Northwest University. He is mainly engaged in mineral petrology, sedimentary reservoir and comprehensive study on petroleum geology. Address:Natural Gas Exploration Research Laboratory, Research Institute of Petroleum Exploration and Development of Qinghai Oilfield Corporation in Dunhuang, Gansu Province. Postcode, 736202. E-mail: khxqh@petroChina.com.cn.

Cite this article:

Kong Hongxi,Zhao Jian,Hou Zesheng et al. Provenance analysis and sedimentary environment evolution of the Neogene in Eboliang Ⅲ structure of Qaidam Basin[J]. JOPC, 2015, 17(1): 51-62.

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http://journal09.magtechjournal.com/gdlxb/EN/10.7605/gdlxb.2015.01.005 OR http://journal09.magtechjournal.com/gdlxb/EN/Y2015/V17/I1/51

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