HYDROCARBON SOURCE AND THE ACCUMULATION IN JIANDING MOUNTAIN，NORTHWEST QAIDAM BASIN

doi:10.3863/j.issn.1000-

西南石油大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (4): 35-38.DOI: 10.3863/j.issn.1000-

• 地质勘探 • Previous Articles Next Articles

HYDROCARBON SOURCE AND THE ACCUMULATION IN JIANDING MOUNTAIN，NORTHWEST QAIDAM BASIN

LU Jun-gang¹ CHEN Shi-jia¹ZHANG Dao-wei² FAN Xiao-jun¹WANG Min-fa¹

1.Resource and Environment Institute,Southwest Petroleum University,Chengdu Sichuan 610500,China;2.Research Institute of Exploration and Development,Qinghai Oilfield Branch Company,Dunhuang Gansu 736202,China

Received:1900-01-01 Revised:1900-01-01 Online:2008-08-20 Published:2008-08-20

Abstract

Abstract:

Jianding Mountain and Nanyi Mountain are the two adjacent structures in the northwest of Qaidam basin.Commercial oil and gas flow has been recovered in the shallow formation but nothing obtained in the deep formation of Jianding Mountain，so the accumulation model study of Jianding Mountain oil and gas structure is significant to the future exploration.In this paper，the authors apply the special geochemical characteristics of the different components of crude oil to identify the oil and gas source and explain successfully the reason why the oil maturity is higher than that of rock maturity，point out that the oil of N₂² of Jianding Mountain comes from N₁ matured hydrocarbon source rocks and mixed with low matured oil in the accumulation process，and the reservoir extracts of the deep formation is provided by the E₃² matured hydrocarbon source rocks.It is recognized that the oil of Jianding Mountain is matured，and it comes from the hydrocarbon source rocks in the vicinity，not from the south of Qaidam Basin.Finally，the authors build the reservoir accumulation model of the Jianding Mountain reservoirs integration with hydrocarbon generation history and tectonic movement history.

Key words: Hydrocarbon source, accumulation model, exploration target, Jianding Mountain, Qaidam Basin 

CLC Number:

TE122.3

LU Jun-gang CHEN Shi-jia ZHANG Dao-wei FAN Xiao-jun WANG Min-fa. HYDROCARBON SOURCE AND THE ACCUMULATION IN JIANDING MOUNTAIN，NORTHWEST QAIDAM BASIN [J]. 西南石油大学学报(自然科学版), 2008, 29(4): 35-38.

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HYDROCARBON SOURCE AND THE ACCUMULATION IN JIANDING MOUNTAIN，NORTHWEST QAIDAM BASIN

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