The components and carbon isotope of the gases in inclusions in reservoir layers of Upper Paleozoic gas pools in the Ordos Basin,China

作     者：MI JingKui 1 ,DAI JinXing 1 ,ZHANG ShuiChang 1 ,ZHANG WenZheng 2 ,GONG Se 1 &LI XianQing 3 1 Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China 2 Exploration and Development Research Institute of PetroChina Changqing Oilfield Company,Xi’an 710021,China 3 Key Laboratory of Coal Resources,Ministry of Education,China University of Miningand Technology,Beijing 100083,China 

作者机构：Research Institute of Petroleum Exploration and Development PetroChina Beijing China Exploration and Development Research Institute of PetroChina Changqing Oilfield Company Xi’an China Key Laboratory of Coal Resources Ministry of Education China University of Miningand Technology Beijing China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2008年第51卷第S1期

页      面：115-121页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：the National Basic Research Program(Grant No.2006CB202307) the National Research Program(Grant No.40572085) 

主　　题：Ordos Basin Upper Paleozoic inclusion gas components carbon isotope 

摘      要：The components and carbon isotope of gases in inclusions are one of the most important geochemical indexes for gas *** analysis results of the components and carbon isotope of gases from inclusions in reservoir layers of Upper Palaeozoic gas pools in the Ordos Basin show that most inclusions grown in reservoir sandstone are primary *** is only a little difference about the components and carbon isotope between the well gases and the secondary inclusions *** indicated that the epigenetic change of gas pools is *** difference between the well gases and the secondary inclusions gases is caused by two reasons:(i)The well gases come from several disconnected sand bodies buried in a segment of depth,while the inclusion gases come from a point of depth.(ii)The secondary inclusions trapped the gases generated in the former stage of source rock gas generation,and the well gases are the mixed gases generated in all the *** is irresponsible to reconstruct the palaeo-temperature and palaeo-pressure under which the gas pool formed using carbon dioxide inclusions.