Super-large natural gasfields have been discovered in the deep and ultra-deep layers of onshore and offshore petroliferous basins in China since the beginning of the 21st century,and the geological conditions for the ...Super-large natural gasfields have been discovered in the deep and ultra-deep layers of onshore and offshore petroliferous basins in China since the beginning of the 21st century,and the geological conditions for the formation of these gasfields and their development laws have already been discussed in a large number of literatures,but the relationship between over pressure and the formation of this kind of gasfields is still less researched.In this regard,this paperfirstly analyzed the gas reservoir development law,sealing conditions and over pressure char-acteristics of deep and ultra-deep super-large gasfields.Then,the formation mechanisms of deep and ultra-deep over pressure caprocks were investigated and the development law of deep and ultra-deep super-large gasfields and their relationship with over pressure caprocks were discussed.Finally,the favorable areas for the next exploration of deep and ultra-deep natural gas were pointed out.And the following research results were obtained.First,the formation of deep and ultra-deep super-large gasfields is closely related to the development of over pressure caprocks.Over pressure caprock is a necessary condition for the formation of deep and ultra-deep super-large gasfields,and there are three over pressure formation mechanisms,including pressure seal of salt-gypsum layer,pressure seal of residual uplift and pressure seal of hydrocarbon-generating pressurization.Second,as for deep and ultra-deep over pressure caprocks and super-large gasfields,there are four reservoirecaprock assemblage modes under different pressure environments,i.e.,over pressure salt-gypsum seal and over pressure super-large gasfield(Type I),internal over pressure compartment and over pressure super-large gasfield(Type II),high-pressure argillaceous shale seal at the bottom of over pressure compartment and normal-pressure super-larger gasfield(Type III),and over pressure source rock seal and normal-pressure super-larger gasfield(Type IV).In conclusion,there are Type I super-large gasfields in the Kuqa Depression of the Tarim Basin,types II and III in the Junggar Basin,types IeIV in the Sichuan Basin and Type IV in the Bohai Bay Basin.展开更多
网络管理一直是网络研究的一项重要的课题.设计制作了一个具跨层管理功能的网管系统,该系统将网络管理者的管理方法与模式转换成自动化的管理方式,这样有助于增加网络运营管理的稳定性.一般的管理者自行研发网管系统往往借由OSI模型(Ope...网络管理一直是网络研究的一项重要的课题.设计制作了一个具跨层管理功能的网管系统,该系统将网络管理者的管理方法与模式转换成自动化的管理方式,这样有助于增加网络运营管理的稳定性.一般的管理者自行研发网管系统往往借由OSI模型(Open System Interconnection Reference Model)中第二层的交换机进行异常的处理,鲜少结合第二层与第三层协作处理,文中对异常处理提供跨层管理的功能,这样对于网络环境异质度高的系统,提供了更有效率并更具弹性的作法.经实际上线启用,证实该系统能更快速处理使用者IP地址使用问题、校内蠕虫病毒发作及校内外异常连接等问题,并有效节省管理者对其他异常处理判断的时间.展开更多
基金supported by the Special and Significant Project of National Research Council of Science and Technology"Evaluation of Hydrocarbon Accumulation,Distribution Law and Favorable Areas in the Foreland Thrust Belt and Complex Structure Area"(No.:2016ZX05003-002).
文摘Super-large natural gasfields have been discovered in the deep and ultra-deep layers of onshore and offshore petroliferous basins in China since the beginning of the 21st century,and the geological conditions for the formation of these gasfields and their development laws have already been discussed in a large number of literatures,but the relationship between over pressure and the formation of this kind of gasfields is still less researched.In this regard,this paperfirstly analyzed the gas reservoir development law,sealing conditions and over pressure char-acteristics of deep and ultra-deep super-large gasfields.Then,the formation mechanisms of deep and ultra-deep over pressure caprocks were investigated and the development law of deep and ultra-deep super-large gasfields and their relationship with over pressure caprocks were discussed.Finally,the favorable areas for the next exploration of deep and ultra-deep natural gas were pointed out.And the following research results were obtained.First,the formation of deep and ultra-deep super-large gasfields is closely related to the development of over pressure caprocks.Over pressure caprock is a necessary condition for the formation of deep and ultra-deep super-large gasfields,and there are three over pressure formation mechanisms,including pressure seal of salt-gypsum layer,pressure seal of residual uplift and pressure seal of hydrocarbon-generating pressurization.Second,as for deep and ultra-deep over pressure caprocks and super-large gasfields,there are four reservoirecaprock assemblage modes under different pressure environments,i.e.,over pressure salt-gypsum seal and over pressure super-large gasfield(Type I),internal over pressure compartment and over pressure super-large gasfield(Type II),high-pressure argillaceous shale seal at the bottom of over pressure compartment and normal-pressure super-larger gasfield(Type III),and over pressure source rock seal and normal-pressure super-larger gasfield(Type IV).In conclusion,there are Type I super-large gasfields in the Kuqa Depression of the Tarim Basin,types II and III in the Junggar Basin,types IeIV in the Sichuan Basin and Type IV in the Bohai Bay Basin.
文摘网络管理一直是网络研究的一项重要的课题.设计制作了一个具跨层管理功能的网管系统,该系统将网络管理者的管理方法与模式转换成自动化的管理方式,这样有助于增加网络运营管理的稳定性.一般的管理者自行研发网管系统往往借由OSI模型(Open System Interconnection Reference Model)中第二层的交换机进行异常的处理,鲜少结合第二层与第三层协作处理,文中对异常处理提供跨层管理的功能,这样对于网络环境异质度高的系统,提供了更有效率并更具弹性的作法.经实际上线启用,证实该系统能更快速处理使用者IP地址使用问题、校内蠕虫病毒发作及校内外异常连接等问题,并有效节省管理者对其他异常处理判断的时间.
