柴达木盆地北缘油气成藏特征

孙德强;张涛;梁彬;祁文珍;刘健;翟志锋;杨联系;刘志舟;赵凡

doi:10.11764/j.issn.1672-1926.2008.05.652

天然气地球科学 >

2008 , Vol. 19 >Issue 05: 652 - 656

DOI: https://doi.org/10.11764/j.issn.1672-1926.2008.05.652

天然气地质学

柴达木盆地北缘油气成藏特征

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（1.中国石油勘探开发研究院，北京 100083；2.中国石油工程设计有限公司青海分公司，
甘肃敦煌 736202；3.青海油田勘探开发研究院，甘肃敦煌 736202；4.中国石油测井
有限公司青海事业部，甘肃敦煌 736202；5.青海油田采油一厂,甘肃敦煌 736202）

收稿日期: 2008-07-31

修回日期: 2008-09-22

网络出版日期: 2008-10-10

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Reservoir-forming Features of Oil and Gas in North of Qaidam Basin

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(1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;2.China Petroleum Enginering CO. (Qinghai), Dunhuang 736202, China; 3. Petroleum Exploration and Development Research Institute,Qinghai Oilfield Company, Dunhuang 736202; China; 4.Qinghai Department of Logging Limited Company of CNPC, Dunhuang 736202, China;5. No.1 Production Plant of Qinghai Oilfield, Huatugou 816400, China)

Received date: 2008-07-31

Revised date: 2008-09-22

Online published: 2008-10-10

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摘要

柴达木盆地北缘油气勘探前景十分广阔，然而由于其地质背景较复杂，目前对油气成藏规律认识的还不清。通过对流体包裹体取样测试，分析了研究区成藏期次及油气运移方向，恢复了成藏过程，结果表明：柴达木盆地北缘不同油气田甚至不同区块油气充注期次及成藏条件有所不同，冷湖地区主要有2期石油的形成和运移，也有1期充注,如冷七1井等,南八仙构造区仙5井、仙6井、仙7井样品为2期油气充注，仙3井和仙4井样品中有2期包裹体，但只有1期油气充注；冷湖地区油气成藏分为侏罗纪沉积与剥蚀、古近纪深层油藏形成和新近纪浅层油气藏形成等3个阶段。

关键词： 柴达木盆地北缘; 油气; 成藏; 流体包裹体

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孙德强;张涛;梁彬;祁文珍;刘健;翟志锋;杨联系;刘志舟;赵凡 . 柴达木盆地北缘油气成藏特征[J]. 天然气地球科学, 2008 , 19(05) : 652 -656 . DOI: 10.11764/j.issn.1672-1926.2008.05.652

Abstract

Despite of its encouraging exploration prospect, the northern Qaidam basin has a complex geologic background which makes it difficult to understand the reservoir forming law of oil and gas. Analysis on accumulation times and migration direction and rebuilding on accumulation conditions reveal that different oil and gas fields, even different blocks have different petroleum charging times and pool forming conditions, and that the pool forming of Lenghu Area in the northern Qaidam basin is divided into there stages: sedimentary and erosion in Jurassic, deep pool forming in Early Teriary and shallow pool forming in Late Teriary

Key words： Northern Qaidam Basin; Oil and gas; Pool forming; Fluid inclusions.

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