CAJ | 학술논문

根据沉积特征、岩石矿物特征、生物特征及地球化学特征的综合分析,将塔里木盆地白垩—第三系划分为3个沉积相组、12个沉积相、20个沉积亚相和若干个沉积微相,并首次在塔北发现海相沉积.塔里木盆地白垩—第三纪储集体包括碎屑岩和碳酸盐岩两种.东北坳陷区储层主要为碎屑岩,特别是下白垩统卡普沙良群亚格列木组是沙雅隆起上的重要储层,上白垩统巴什基奇克组是库车前陆盆地的重要储层.西南坳陷区储层包括碎屑岩储层和碳酸盐岩储层两种岩性,如下白垩统上部乌鲁克恰特组滨岸海滩砂砾岩及上白垩统依格孜牙组生物丘灰岩等也构成较好的储集层.
근거침적특정、암석광물특정、생물특정급지구화학특정적종합분석,장탑리목분지백성—제삼계화분위3개침적상조、12개침적상、20개침적아상화약간개침적미상,병수차재탑북발현해상침적.탑리목분지백성—제삼기저집체포괄쇄설암화탄산염암량충.동북요함구저층주요위쇄설암,특별시하백성통잡보사량군아격렬목조시사아륭기상적중요저층,상백성통파십기기극조시고차전륙분지적중요저층.서남요함구저층포괄쇄설암저층화탄산염암저층량충암성,여하백성통상부오로극흡특조빈안해탄사력암급상백성통의격자아조생물구회암등야구성교호적저집층.
From Cretaceous to Tertiary, the Tarim basin developed many types of sedimentary facies. There are marine, non-marine and transitional facies distributed over this area. The Upper Cretaceous-Paleogene marine deposits are scattered mainly over the foothills of West Kunlun to Southwest Tianshan Mountains in the southwestern depression of Tarim basin, but do not occur in the northeastern depression of Tarim basin. The Lower Cretaceous-Miocene strata mainly have non-marine deposits. According to an integrated analysis of the features of sedimentation, rocks and minerals, organism and geochemistry, the Cretaceous-Tertiary deposits in Tarim basin can be divided into 3 sedimentary facies groups, 12 sedimentary facies, 20 sedimentary subfacies and a certain number of sedimentary microfacies, and the Late Cretaceous marine deposits have been found for the first time in the northern Tarim basin. From Cretaceous to Tertiary there were developed two kinds of reservoirs in Tarim basin?clastic reservoirs and carbonate reservoirs. The reservoirs in the northwestern depression of Tarim basin are mainly clastic rocks. The Lower Cretaceous Yageliemu Formation of Kapushaliang Group, in particular, is a significant reservoir in Shaya uplift, and the Upper Cretaceous Bashijiqik Formation is an important reservoir in Kuqa foreland basin. The reservoirs in the southwestern depression include clastic reservoirs and carbonate reservoirs. The sandstone and conglomerate of the upper Lower Cretaceous Wulukeqiate Formation, the bioherm limestone of the Upper Cretaceous Yigezia Formation in the front of the foothills of west Kunlun can also form fairly good reservoirs.