| 辽河西部凹陷地层水特征及其成因分析 |
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| 引用本文： | 冷济高a,b 庞雄奇a,b 张凤奇 崔丽静 刘海波. 辽河西部凹陷地层水特征及其成因分析[J]. 西南石油大学学报(自然科学版), 2008, 30(5): 58-63. DOI: 10.3863/j.issn.1000-2634.2008.05.012 |
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| 作者姓名： | 冷济高a b 庞雄奇a b 张凤奇 崔丽静 刘海波 |
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| 作者单位： | 1.中国石油大学：a.天然气成藏机理教育部重点实验室，b.盆地与油藏研究中心，北京102249；2.西安石油大学油气资源学院，陕西西安710065;3.中国石油辽河油田分公司勘探开发研究院，辽宁盘锦124010;4.延长油田股份有限公司，陕西延川717208 |
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| 摘 要： | 辽河西部凹陷886个水样分析化验测试数据表明，地层水型主要为低矿化度的NaHCO3水型，94.3%的地层水化学组分为HCO3－、Cl－、Na+，NaHCO3和NaCl是其主要的表现形式
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| 关 键 词： | 地层水化学特征 矿化度 水－岩相互作用 辽河西部凹陷 |
CHARACTERISTICS OF FORMATION WATER AND THE GENESIS ANALYSIS IN THE WESTERN LIAOHE SAG |
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| LENG Ji-gaoa,b PANG Xiong-qia,b ZHANG Feng-qi CUI Li-jing LIU Hai-bo. CHARACTERISTICS OF FORMATION WATER AND THE GENESIS ANALYSIS IN THE WESTERN LIAOHE SAG[J]. Journal of Southwest Petroleum University(Seience & Technology Edition), 2008, 30(5): 58-63. DOI: 10.3863/j.issn.1000-2634.2008.05.012 |
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| Authors: | LENG Ji-gaoa b PANG Xiong-qia b ZHANG Feng-qi CUI Li-jing LIU Hai-bo |
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| Affiliation: | 1.China University of Petroleum:a.Key laboratory of Hydrocarbon Accumulation of Education of Ministry,b.Basin & Reservoir Research Center,Beijing 102249,China; 2.School of Petroleum Resources,Xi′an Shiyou University,Xi′an Shaanxi 710065,China；3.Exploration and Development Research Institute,Liaohe Oilfield Company,PetroChina,Panjin,Liaoning 124010,China； 4.Yanchang Oil field co.,Ltd,Yanchuan Shaanxi 717208,China |
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| Abstract: | Low-salinity,94.3% chemical composition of HCO3－、Cl－、Na+the main formation water form with NaHCO3and NaCl are the basic characteristics of the NaHCO3 type fluid in the west Liaohe sag,based on the 886 samples of formation water analysis.Na+ cation takes up not only absolute superiority but also controls of chemical spatial distribution the formation water.Rich albitization of plagioclase of the source rocks in the vicinity is the key factor controlling Na+ coming into being.Besides of water-rock interaction,the large number of hydrocarbon generation has close relationship with HCO3－accumulation.Cl－comes from the dissolved salt matter.Impacted by basement morphology and tectonic evolution,formation water can be divided into two relatively independent fluid activity units in north and south respectively.The north is mainly affected by the water evaporation and the south is controlled by hydrocarbon generation. |
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| Keywords: | geochemistry of formation water salinity water-rock interaction western Liaohe Sag |
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