Taking the Paleogene Shahejie Formation in Nanpu sag of Bohai Bay Basin as an example,this study comprehensively utilizes seismic,mud logging,well logging,physical property analysis and core thin section data to inves...Taking the Paleogene Shahejie Formation in Nanpu sag of Bohai Bay Basin as an example,this study comprehensively utilizes seismic,mud logging,well logging,physical property analysis and core thin section data to investigate the metamorphic reservoir formed by contact metamorphism after igneous rock intrusion.(1)A geological model of the igneous intrusion contact met amorphic system is proposed,which can be divided into five structural layers vertically:the intrusion,upper metamorphic aureole,lower metamorphic aureole,normal sedimentary layers on the roof and floor.(2)The intrusion is characterized by xenoliths indicating intrusive facies at the top,regular changes in rock texture and mineral crystallization from the center to the edge on a microscopic scale,and low-angle oblique penetrations of the intrusion through sedimentary strata on a macroscopic scale.The metamorphic aureole has characteristics such as sedimentary rocks as the host rock,typical palimpsest textures developed,various low-temperature thermal metamorphic minerals developed,and medium-low grade thermal metamorphic rocks as the lithology.(3)The reservoir in contact metamorphic aureole has two types of reservoir spaces:matrix pores and fractures.The matrix pores are secondary"intergranular pores"distributed around metamorphic minerals after thermal metamorphic transformation in metasandstones.The fractures are mainly structural fractures and intrusive compressive fractures in metamudstones.The reservoirs generally have three spatial distribution characteristics:layered,porphyritic and hydrocarbon impregnation along fracture.(4)The distribution of reservoirs in the metamorphic aureole is mainly controlled by the intensity of thermal baking.Furthermore,the distribution of favorable reservoirs is controlled by the coupling of favorable lithofacies and thermal contact metamorphism,intrusive compression and hydrothermal dissolution.The proposal and application of the geological model of the intrusion contact metamorphic system are expected to promote the discovery of exploration targets of contact metamorphic rock in Nanpu sag,and provide a reference for the study and exploration of deep contact metamorphic rock reservoirs in the Bohai Bay Basin.展开更多
目的:探讨酒精性肝硬化腹水中医证候与临床相关指标的关系,为中医辨证治疗该病及判断预后提供参考。方法:通过对120例酒精性肝硬化腹水住院患者的临床资料的回顾性研究,分析其中医证型分布特点、白蛋白、门静脉宽度及终末期肝病模型(Mod...目的:探讨酒精性肝硬化腹水中医证候与临床相关指标的关系,为中医辨证治疗该病及判断预后提供参考。方法:通过对120例酒精性肝硬化腹水住院患者的临床资料的回顾性研究,分析其中医证型分布特点、白蛋白、门静脉宽度及终末期肝病模型(Model for End-stage Liver Disease,MELD)评分,深入研究中医证型与其相关指标之间的联系。结果:在120例酒精性肝硬化腹水患者中湿热证型所占的比例最高,其次为血瘀证患者。在各证型的患者中,白蛋白水平差异有统计学意义(P<0.05),其中湿阻证在轻度低蛋白血症患者中所占的比例最高;重度低蛋白血症在阴虚证患者中所占的比例最高。同时,各证型患者的门静脉宽度值有差异,其中阴虚证、阳虚证患者的门静脉宽度值分别比湿阻证、湿热证患者高,血瘀证患者的门静脉宽度值比湿阻证患者高(P<0.05)。各证型患者的MELD均值有差异,阳虚证患者的MELD均值比湿阻证患者高,阴虚证患者的MELD均值比湿阻证、湿热证、血瘀证患者高,差异显著(P<0.05)。结论:酒精性肝硬化腹水患者的中医证型与相关指标存在一定的相关性。展开更多
基金Supported by the Basic Science Research Fund Project of PetroChina Affiliated Institute(2020D-5008-06)。
文摘Taking the Paleogene Shahejie Formation in Nanpu sag of Bohai Bay Basin as an example,this study comprehensively utilizes seismic,mud logging,well logging,physical property analysis and core thin section data to investigate the metamorphic reservoir formed by contact metamorphism after igneous rock intrusion.(1)A geological model of the igneous intrusion contact met amorphic system is proposed,which can be divided into five structural layers vertically:the intrusion,upper metamorphic aureole,lower metamorphic aureole,normal sedimentary layers on the roof and floor.(2)The intrusion is characterized by xenoliths indicating intrusive facies at the top,regular changes in rock texture and mineral crystallization from the center to the edge on a microscopic scale,and low-angle oblique penetrations of the intrusion through sedimentary strata on a macroscopic scale.The metamorphic aureole has characteristics such as sedimentary rocks as the host rock,typical palimpsest textures developed,various low-temperature thermal metamorphic minerals developed,and medium-low grade thermal metamorphic rocks as the lithology.(3)The reservoir in contact metamorphic aureole has two types of reservoir spaces:matrix pores and fractures.The matrix pores are secondary"intergranular pores"distributed around metamorphic minerals after thermal metamorphic transformation in metasandstones.The fractures are mainly structural fractures and intrusive compressive fractures in metamudstones.The reservoirs generally have three spatial distribution characteristics:layered,porphyritic and hydrocarbon impregnation along fracture.(4)The distribution of reservoirs in the metamorphic aureole is mainly controlled by the intensity of thermal baking.Furthermore,the distribution of favorable reservoirs is controlled by the coupling of favorable lithofacies and thermal contact metamorphism,intrusive compression and hydrothermal dissolution.The proposal and application of the geological model of the intrusion contact metamorphic system are expected to promote the discovery of exploration targets of contact metamorphic rock in Nanpu sag,and provide a reference for the study and exploration of deep contact metamorphic rock reservoirs in the Bohai Bay Basin.
文摘目的:探讨酒精性肝硬化腹水中医证候与临床相关指标的关系,为中医辨证治疗该病及判断预后提供参考。方法:通过对120例酒精性肝硬化腹水住院患者的临床资料的回顾性研究,分析其中医证型分布特点、白蛋白、门静脉宽度及终末期肝病模型(Model for End-stage Liver Disease,MELD)评分,深入研究中医证型与其相关指标之间的联系。结果:在120例酒精性肝硬化腹水患者中湿热证型所占的比例最高,其次为血瘀证患者。在各证型的患者中,白蛋白水平差异有统计学意义(P<0.05),其中湿阻证在轻度低蛋白血症患者中所占的比例最高;重度低蛋白血症在阴虚证患者中所占的比例最高。同时,各证型患者的门静脉宽度值有差异,其中阴虚证、阳虚证患者的门静脉宽度值分别比湿阻证、湿热证患者高,血瘀证患者的门静脉宽度值比湿阻证患者高(P<0.05)。各证型患者的MELD均值有差异,阳虚证患者的MELD均值比湿阻证患者高,阴虚证患者的MELD均值比湿阻证、湿热证、血瘀证患者高,差异显著(P<0.05)。结论:酒精性肝硬化腹水患者的中医证型与相关指标存在一定的相关性。
