李自安,张锐,施尚明,施龙
Li Zi-an; et al. ( Guangzhou Geochemical Research Institute of Chinese Science Academy; Guangzhou 510640; China);

• 1:中国科学院 广州地球化学研究所
• 2:黑龙江大学 化学化工与材料学院
• 3:大庆石油学院
• 4:大庆油田有限责任公司天然气分公司 广东广州 510640 中国科学院 边缘海地质重点实验室

摘要(Abstract)：

杜蒙地区在纵向上分别被嫩一、二段泥岩、青一段泥岩和泉一、二段泥岩所分隔,形成四套热储组合,即上部热储组合、中部热储组合、下部热储组合和深部热储组合。热储水流的数值模拟表明,地质历史时期,盆地西北部斜坡边缘为低势区,而靠近盆地中部(或沉积拗陷中心)为高势区,热储中水流由盆地中部高势区向盆地西北部边缘低势区运移,这一时期盆地西北部边缘为泄水区、盆地中心(沉积拗陷中心)为补给区;而现今杜蒙地区热储中水流由盆地西北部中部边缘高势区向盆地中部低势区运移,盆地西北部边缘为补给区。
Dumeng area is separated vertically by shale in NenⅠ and NenⅡ　Member, QingⅠ Member, and QuanⅠ and Quanll Member. There are 4 heat reservoir assemblies; the upper, middle, lower and deeper one. The most widely distributed ions in subsurface water in Dumeng area include: Cl- , SO42- , HCO3- , Na+ , Ca2 + and Mg2 +. Salinity of formation water is between 4000 -8000g/l with the main water types of NaHCO3 type and Cad, type. According to water quality analysis water here, which has high quality , is suitable for medical care. Based on numerical simulation of heat current, geologically, the slope margin in northwest part of the basin was low potential region while near basin' s center ( or sedimentary depression' s center) it was high potential area. The hot current migrated from high potential region in basin' s center to low potential area in northwest margin in the basin. During this period the northwest margin in the basin was discharge area and the basin' s center ( sedimentary depression ' s center) was feeding area; at present in Dumeng area the hot current moves from the high potential part in central margin of northwest to low potential in basin ' s center, and the northwest margin is the feeding area.

关键词(KeyWords)： 杜蒙地区;地热田;水文地质;化学特征;数值模拟
Dumeng area; subsurface hot-water; hydrogeology; chemical features; numerical simulation

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 李自安,张锐,施尚明,施龙
Li Zi-an; et al. ( Guangzhou Geochemical Research Institute of Chinese Science Academy; Guangzhou 510640; China);

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