| 南襄盆地泌阳凹陷油、碱共生的地质条件 |
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| 引用本文： | 秦伟军, 段心建. 南襄盆地泌阳凹陷油、碱共生的地质条件[J]. 地质科学, 2004, 39(3): 339-345. |
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| 作者姓名： | 秦伟军 段心建 |
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| 作者单位： | 1. 中国石油化工股份有限公司石油勘探开发研究院 北京 100083; 2. 河南油田地质研究院 河南 南阳 473132 |
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| 摘 要： | 南(阳)襄(樊)盆地泌阳凹陷是一个油、碱共生的蒸发岩盆地,已探明规模石油与天然碱(NaHCO3和Na2CO3·3NaHCO3)地质储量。原油分为成熟油和未熟(低熟)油,成熟油储集于碎屑岩中,未熟(低熟)油储集于白云岩的裂缝和孔洞之中,而天然碱矿的围岩就是白云岩(裂缝和孔洞中也有天然碱赋存)。其地质特征与美国绿河盆地和犹英塔盆地十分相似,油碱共生受控于大地构造背景、古地貌、古地理、古气候、古沉积环境和物质来源等地质条件。
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| 关 键 词： | 油、碱共生 地质条件 南襄盆地泌阳凹陷 蒸发岩盆地 |
| 文章编号： | 0563-5020(2004)03-0339-07 |
| 收稿时间： | 2003-01-22 |
| 修稿时间： | 2003-01-22 |
GEOLOGICAL CONDITIONS FOR PARAGENESIS OF OIL AND ALKALI IN THE BIYANG DEPRESSION, NAN-XIANG BASIN |
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| Qin Weijun, Duan Xinjian. GEOLOGICAL CONDITIONS FOR PARAGENESIS OF OIL AND ALKALI IN THE BIYANG DEPRESSION, NAN-XIANG BASIN[J]. Chinese Journal of Geology, 2004, 39(3): 339-345. |
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| Authors: | Qin Weijun Duan Xinjian |
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| Affiliation: | 1. Exploration and Production Research Institute, China Petroleum & Chemical Corp., Beijing 100083; 2. Research Institute of Henan Oilfield, Nanyang, Henan 473132 |
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| Abstract: | A phenomenum of paragenesis of oil and trona (natural alkali, namely, NaHCO3 and Na2CO3·3NaHCO3) occurred in the Biyang Depression, Nan Xiang Basin in central China. The Nan-Xiang Basin was an evaporite basin during the Eogene, where the exploration proved certain scale oil and trona reserves. The crude oil could be divided into mature oil reserving in clastic reservoirs and immature (low mature) oil keeping in dolomite fractured and dissolved cavern reservoirs. Specially, the alkali layers were closely related to dolomites, namely, the wall rocks of the alkali deposits was these dolomites. There were similar geological conditions for the oil-trona paragenesis between the Biyang Depression and the Green River or the Uinta Basins in North America. The oil-trona paragenesis might be controlled by the tectono-paleogeomorphical evolution, paleogeography-paleogeoclimate situation, paleosedimentary environment, provenance and metallogenic material sources. |
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| Keywords: | Paragenesis of oil and alkali Geological conditions The Biyang Depression of Nan-Xiang Basin Evaporite basin |
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