Integrate GOI and composition data of oil inclusions to reconstruct petroleum charge history of gas-condensate reservoirs:example from the Mosuowan area,central Junggar basin(NW China)

曹剑; 金之钧; 胡文瑄; 谢小敏; 王绪龙; 姚素平

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Integrate GOI and composition data of oil inclusions to reconstruct petroleum charge history of gas-condensate reservoirs:example from the Mosuowan area,central Junggar basin(NW China)

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The Grains containing Oil Inclusions(GOI)data in currently gas/condensate-beating Jurassic and Cretaceous reservoir sandstones of Well Pen 5(the Mosuowan area of central Junggar Basin,NW China)are generally greater than the empirical threshold line of 5%.This is consistent with the gas-condensate section originally containing a palaeo-oil column.In order to assess the origin of the oil trapped in the oil inclusion and its relationship to the free oil/gas-condensate,a detailed molecular geochemical study was carried out for correlation between the free and inclusion oils.The paleo oil is most likely sourced from the Lower Permian Fengeheng Formation,which generated hydrocarbons primarily during Late Triassic and the oils were later secondarily altered and dysmigrated along faults likely during Late Jurassic-Early Cretaceous.In contrast,the current reservoired oil/gas-condensate mainly derived from the Middle Permian Lower Wuerhe Formation,whose peak generation time last from Late Cretaceous even to the present.This paper showed that integrated oil-bearing fluid inclusion analyses have likely allowed a complex multi-phase charge history to be recognized and resolved with a high degree of confidence.

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来源
《岩石学报》 |2007年第1期|137-144|共8页
作者
曹剑; 金之钧; 胡文瑄; 谢小敏; 王绪龙; 姚素平;
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作者单位

State Key Laboratory for Mineral Deposit Research;

Department of Earth Sciences;

Nanjing University;

Nanjing 210093;

China;

Exploration and Production Research Institute;

SINOPEC;

Beijing 100083;

China;

Research Institute of Exploration and Development;

Xinjiang Oilfield Company;

PetroChina;

Karamay 834000;

China;

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原文格式 PDF
正文语种 chi
中图分类石油、天然气;
关键词
烃类流体包裹体GOI; 成分; 凝析气藏; 成藏过程; 准噶尔盆地; 莫索湾地区;

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Integrate GOI and composition data of oil inclusions to reconstruct petroleum charge history of gas-condensate reservoirs:example from the Mosuowan area,central Junggar basin(NW China)

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