石油实验地质Issue(2):176-181,6.DOI:10.11781/sysydz201402176
塔里木盆地巴麦地区东河塘组储集层特征与成岩作用
Reservoir characteristics and diagenesis of Devonian Donghetang Formation in Bachu-Maigaiti area
摘要
Abstract
According to the analyses of rock slice, cast slice, SEM and well logging data, the sedimentary, petrologic characteristics and diagenesis of the upper and the lower sandstone segments of the Donghetang Formation in the Bachu-Maigaiti area were studied. Deposited in littoral environment, the Donghetang Formation was featured by higher compositional maturity and textural maturity, and both of the 2 maturities were higher in the upper sandstone segment than in the lower one. Dissolution pores served as the main reservoir space, and their distribution was determined by grain size and intergranular material. For example, the dissolution pores were well developed in the sandstone segment with bigger grain size and calcareous cementation. The most important diagenesis effects included compaction, cementation, cement dissolution, quartz alkali dissolution, metasomasis, recrystallization and structure cataclasis. According to the division standard of diagenetic phase, the Donghetang Formation was in the B stage of middle phase.关键词
成岩作用/储集特征/东河塘组/巴麦地区/塔里木盆地Key words
diagenesis/reservoir property/Donghetang Formation/Bachu-Maigaiti area/Tarim Basin分类
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张永东,邵志兵,乔桂林,韩彧..塔里木盆地巴麦地区东河塘组储集层特征与成岩作用[J].石油实验地质,2014,(2):176-181,6.基金项目
中国石化科技部项目“巴麦地区古生界油气成藏条件与勘探方向”( P10023)资助。 ()