| 鄂尔多斯盆地南部直罗油田长8油层油气沸腾包裹体群研究 |
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| 引用本文： | 王志辉,黄伟.鄂尔多斯盆地南部直罗油田长8油层油气沸腾包裹体群研究[J].地球科学与环境学报,2011,33(2):146-151. |
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| 作者姓名： | 王志辉 黄伟 |
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| 作者单位： | 1. 西安石油大学油气资源学院，陕西西安710065;陕西延长石油(集团)有限责任公司延长油田股份有限责任公司直罗采油厂，陕西富县727500
2. 陕西延长石油(集团)有限责任公司延长油田股份有限责任公司直罗采油厂,陕西富县,727500 |
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| 基金项目： | 陕西延长石油(集团)有限责任公司延长油田股份有限责任公司项目 |
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| 摘 要： | 运用激光拉曼光谱、包裹体充填度测定等方法对鄂尔多斯盆地直罗油田富南3井、6井长8油层裂缝岩芯充填物中包裹体群进行分析,发现富南3井、6井与英旺油田英16井长8油层中油气沸腾包裹体群完全相同,密集分布的气泡不停晃动,证实油气沸腾包裹体群不是孤立的、偶然的地质现象。富南3井、6井和英16井长8油层裂缝岩芯的原始裂缝性质为滑动-剪切裂缝和剪切裂缝,在区域构造的作用下,反复发生拉张-挤压交替活动;在拉张发生的瞬间,与裂缝沟通的油层里的原油发生减压沸腾,原油中的轻质馏分和其他流体进入裂缝空间;在随后的挤压发生时,裂缝基本封闭,一部分流体返回原来的油层,一部分被挤到别的裂隙空间形成新的油藏;残留在裂缝里的碳酸钙,在较高的地层压力下逐渐结晶,并把残留的轻质馏分包裹,形成油气包裹体;这些油气包裹体形成压力较高,又包裹着成分类似液化气的轻质馏分,在常温常压下就处于沸腾状态;这样的过程反复进行,在裂缝充填物中形成了沿着晶体生长线以及成片、成带分布的油气沸腾包裹体群。上述油气沸腾包裹体群的形成过程就是油气的地震泵运移机制,丰富了油气运移地震泵地质模型。
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| 关 键 词： | 鄂尔多斯盆地 油气沸腾包裹体群 剪切裂缝 剪切-滑动裂缝 油气运移 地震泵地质模型 |
Study on Oil/gas Boiling Inclusion Group of Chang-8 Oil-bearing Bed in Zhiluo Oilfield,the Southern of Ordos Basin |
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| WANG Zhi-hui,HUANG Wei.Study on Oil/gas Boiling Inclusion Group of Chang-8 Oil-bearing Bed in Zhiluo Oilfield,the Southern of Ordos Basin[J].Journal of Earth Sciences and Environment,2011,33(2):146-151. |
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| Authors: | WANG Zhi-hui HUANG Wei |
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| Institution: | WANG Zhi-hui1,2,HUANG Wei2(1.School of Oil and Gas Resources,Xi'an Shiyou University,Xi'an 710065,Shaanxi,China,2.Zhiluo Oil Production Plant,Yanchang Oilfield Company Limited,Shaanxi Yanchang Petroleum(Group) Company Limited,Fuxian 727500,China) |
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| Abstract: | By the means of laser Raman spectroscopy and filling degree of inclusion,the inclusion groups of fillings of Chang-8 oil-bearing beds from wells Funan3 and Funan6 in Zhiluo Oilfield,the southern of Ordos Basin were studied.The results showed that the oil/gas boiling inclusion groups of Chang-8 oil-bearing beds from wells Funan3 and Funan6 were exactly the same to that from well Ying16 in Yingwang Oilfield,and a lot of bubbles moved constantly;the geological phenomenon for oil/gas boiling inclusion groups we... |
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| Keywords: | Ordos Basin oil/gas boiling inclusion group shear fracture shear-slip fracture oil/gas migration geological model of seismic pumping |
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