| 歧口凹陷热液流体活动及其对储集层的改造 |
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| 引用本文： | 侯中帅,周立宏,金凤鸣,陈世悦,蒲秀刚,鄢继华,李宏军. 歧口凹陷热液流体活动及其对储集层的改造[J]. 地球科学, 2021, 46(1): 200-214. DOI: 10.3799/dqkx.2019.282 |
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| 作者姓名： | 侯中帅 周立宏 金凤鸣 陈世悦 蒲秀刚 鄢继华 李宏军 |
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| 作者单位： | 河北地质大学交叉科学研究院,河北石家庄 050031;中国石油大学地球科学与技术学院,山东青岛 266580;中国石油大港油田公司,天津 300280;中国石油大学地球科学与技术学院,山东青岛 266580 |
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| 基金项目： | 中石化胜利油田分公司科技项目;国家科技重大专项 |
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| 摘 要： | 为了明确富油气凹陷中热液流体活动的发育特征及其对储集层的改造作用,以渤海湾盆地歧口凹陷为研究对象,通过岩心、薄片、XRF元素扫描、扫描电镜观察和地层水矿化度、热解、包裹体均一温度、黏土矿物、微量元素、稀土元素、常规物性等资料,分析了歧口凹陷热液流体活动发育的证据,明确其对不同类型储层的改造方式,认为歧口凹陷中热液流体活...
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| 关 键 词： | 热液流体 储层改造 歧口凹陷 改造方式 石油地质 |
| 收稿时间： | 2019-11-23 |
Hydrothermal Fluid Activity and Its Reformation on Reservoirs in Qikou Depression |
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| Hou Zhongshuai,Zhou Lihong,Jin Fengming,Chen Shiyue,Pu Xiugang,Yan Jihua,Li Hongjun. Hydrothermal Fluid Activity and Its Reformation on Reservoirs in Qikou Depression[J]. Earth Science-Journal of China University of Geosciences, 2021, 46(1): 200-214. DOI: 10.3799/dqkx.2019.282 |
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| Authors: | Hou Zhongshuai Zhou Lihong Jin Fengming Chen Shiyue Pu Xiugang Yan Jihua Li Hongjun |
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| Affiliation: | (Interdisciplinary Science Research Institute,Hebei GEO University,Shijiazhuang 050031,China;School of Geocinseces,China University of Petroleum,Qingdao 266580,China;Petrochina Dagang Oilfield Compamy,Tianjin 300280,China) |
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| Abstract: | In order to clarify the development characteristics of the hydrothermal fluid activity and its reformation effect on the reservoir in the oil-rich depression,the Qikou depression in the Bohai Bay basin was studied.Based on the analysis of core,thin sections,XRF,SEM,salinity of formation water,pyrolysis,homogenization temperature of inclusions,clay minerals,trace elements,REE and conventional physical properties,the evidences of hydrothermal fluid activity in Qikou depression of Bohai Bay basin were analyzed,and the reformation patterns on different types of reservoirs were identified.we regard that the hydrothermal fluid activity in the Qikou depression is relatively developed and has a strong reformation effect on the reservoir.The results show that there are several types of hydrothermal fluid activity indicators in the Qikou depression,including:hydrothermal breccia,zebra fabric,faded mudstone and several kinds of hydrothermal mineral associations;abnormally high formation water salinity;mudstones with abnormally high Tmax or S1 and S2 values;the homogenization temperature of inclusion exceeding the maximum temperature of normal thermal evolution;the abnormally high content of kaolinite in shallow strata sandstones and the abnormally high content of chlorite in mid-deep strata sandstones;the abnormally high characteristics of trace elements such as Zn、Cd、Ba and Pb in mudstones;the rare earth elements in carbonate rocks showing Eu positive anomaly.In different kinds of reservoirs,the reformation patterns of hydrothermal fluid are different:hydraulic fracturing and dissolution are mainly developed in the carbonate rocks,hydraulic fracturing and promoting devitrification are mainly developed in the tuff,hydraulic fracturing is mainly developed in the basalt,while the hydrothermal fluid reform sandstone reservoirs by dissolution and promoting chlorite development. |
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| Keywords: | hydrothermal fluid reservoir reformation Qikou depression reformation pattern petroleum geology |
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