| 塔里木盆地构造热液白云岩及其储层意义 |
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| 引用本文： | 焦存礼,何治亮,邢秀娟,卿海若,何碧竹,李程成.塔里木盆地构造热液白云岩及其储层意义[J].岩石学报,2011,27(1):277-284. |
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| 作者姓名： | 焦存礼 何治亮 邢秀娟 卿海若 何碧竹 李程成 |
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| 作者单位： | 中国石化石油勘探开发研究院,北京 100083;中国石化石油勘探开发研究院,北京 100083;中国石化石油勘探开发研究院,北京 100083;University of Regina, Regina, SK S4S 0A2;中国地质科学院地质研究所国土资源部大陆动力学重点实验室,北京 100037;中原石油勘探局勘察设计研究院,濮阳 457001 |
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| 基金项目： | 本文受国家重大专项(2008ZX05005-002)、国土资源部全国油气资源战略选区调查与评价项目(2009GYXQ02)和中国石化股份有限公司科技开发部项目(YPH08110)联合资助. |
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| 摘 要： | 野外露头和岩心资料表明,塔里木盆地下古生界广泛分布与构造活动有关的热液白云岩化作用。这种构造热液白云岩化作用有其特有的岩石学特征和地球化学特征,以鞍形白云石和自形白云石为标志,多表现为裂缝和孔洞填隙物,具有粗晶结构;流体包裹体具有较高的均一温度和盐度,地球化学上具有较轻的碳氧同位素值,与围岩(白云岩)有一定范围的重叠;锶同位素放射性不明显,表现出亲源性特征。塔里木盆地下古生界构造热液白云岩与西加盆地泥盆系热液白云岩区别明显。塔里木盆地二叠纪广泛发育的岩浆热事件可能是构造热液白云岩的主要成因。与构造热液白云岩有关的储层多是优质储层,其分布与断裂、不整合密切相关,是油气勘探的有利目标。
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| 关 键 词： | 白云岩 构造-热液作用 优质储层 下古生界 塔里木盆地 |
| 收稿时间： | 2010/8/10 0:00:00 |
| 修稿时间： | 2010/12/1 0:00:00 |
Tectonic hydrothermal dolomite and its significance of reservoirs in Tarim basin |
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| JIAO CunLi,HE ZhiLiang,XING XiuJuan,QING HaiRuo,HE BiZhu and LI ChengCheng.Tectonic hydrothermal dolomite and its significance of reservoirs in Tarim basin[J].Acta Petrologica Sinica,2011,27(1):277-284. |
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| Authors: | JIAO CunLi HE ZhiLiang XING XiuJuan QING HaiRuo HE BiZhu and LI ChengCheng |
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| Institution: | SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;University of Regina, Regina, SK S4S 0A2, Canada;Key Laboratory of Continental Dynamics of the Ministry of Land and Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China;Zhongyuan Engineering Company, Puyang 457001, China |
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| Abstract: | The outcrop and core data show that there have developed wide distribution of tectonic hydrothermal dolomitization of Lower Palaeozoic in Tarim basin. This kind of dolomitization have its special characteristics from petrology and geochemistry, and marked as saddle dolomite and euhedral dolomite, existing as coarse grain structure in cracks and holes with the high homogenization temperature and salinity from fluid inclusions and the lighter carbon and oxygen isotope values which has a range of overlapping with around rocks on geochemistry, while Sr isotopes is not obvious and showing features from their origin rocks. There have obvious difference with Devonian hydrothermal dolomite in Seaga basin. The extensive development of the Permian magmatic thermal event of Tarim basin maybe is the main causes of tectonic hydrothermal dolomite. The reservoir related to tectonic hydrothermal dolomite are mostly high-quality reservoir, which distribution are closely related to fracture and unconformity, will be a favorable target for oil and gas exploration. |
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| Keywords: | Dolomite Tectonic hydrothermal High quality reservoir Lower Palaeozoic Tarim basin |
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