Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Composition and resource prediction of the Nanxiang Basin geothermal system:a case study from the Biyang and Nanyang Sags

JI Hancheng;LI Haiquan;CHEN Liang;CHEN Xiang;JIA Haibo;ZHANG Liang;State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum(Beijing);College of Geosciences,China University of Petroleum(Beijing);Star-Shuangliang Geothermal Energy Pyroelectric Co.,Ltd,SINOPEC;Henan Oilfield Branch Company,SINOPEC;  
The geothermal system,a type of geological system,is defined as a dynamic assembly of certain correlative geological elements primarily consisting of the heat source,passage,water source,reservoir and seal,and two processes of heat transmission and underground water circulation.The condition of tectonics,sedimentary environment and hydraulics resulted from the peculiar evolution process of petroliferous basins provides strong basis for the large and medium geothermal field.Using well logging,seismic and geochemistry data,this paper illustrates the compositional characteristics of a typical sedimentary-basin geothermal system from a case study of the Nanxiang Basin.The results demonstrate that(1)the heat source of the Nanxiang geothermal field is dominated by crust and mantle heat sources,where small size magmatic rocks cannot provide sufficient heat;(2)the passage is composed of boundary fractures and depositional sand bodies;and(3)the depositional strata of the Paleogene and Neogene are the main reservoirs.Through a comprehensive analysis,this research investigates the composition and heat trapping rules of a sedimentary-basin geothermal system;the extent of geothermal resources is also calculated by the volumetric method.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved