Given sustaining exploration, the eastern zone of the Sulige gas field may soon become a key area of exploitation. In order to explore its genesis, types and distribution of the reservoir sandstones in the eastern zon...Given sustaining exploration, the eastern zone of the Sulige gas field may soon become a key area of exploitation. In order to explore its genesis, types and distribution of the reservoir sandstones in the eastern zone of this gas field, we focused in our study on the provenance and detailed sedimentary facies of sandstone of the He8 （the eighth part of the Shihezi formation, Permian system） and Shanxil （the first part of the Shanxi formation, Permian system） members, based on core observations, analyses in petrography, granularity and logging. The results show that： 1） the sandstone provenance of Shanxil and He8 in the eastern zone of the Sulige gas field is from the north of the Ordos Basin, characterized by dual directions from the north and northeast. 2） The He8 and Shanxil members were deposited in a fluvial-delta sedimentary system. The He8 was mainly deposited in braided rivers, in- cluding braided channels, channel bars, levee and floodplain sub-environments, whereas the Shanxil Member was deposited in braided rivers and deltas, including braided channels, channel bars, floodplains, tributaries and inter-tributary sub-environments. 3） Sedimentary facies bands migrated in drastic fashion towards the basin from the Shanxil to the He8 Member. Base levels of sedi- mentation generally present a trend of small increases in-amplitude, large decreasing amplitudes and slow and gradual Increases. 4） The continuity of the reservoir sandbodies along the source direction is better than that perpendicular to the direction. Compared with Shanxil, both dimensions and continuity of the sandbodies in He8 are better from which we conclude that it is the most fa- vorable part of the reservoir.展开更多
目的:通过对中药黄芪抗肿瘤方面的研究文献进行可视化分析,了解其研究热点及前沿动态,分析自2010年以来黄芪抗肿瘤的研究现状,为黄芪抗肿瘤机制的进一步研究提供参考。方法:以中国知网(CNKI)及Web of Science中的数据库为数据来源,采用V...目的:通过对中药黄芪抗肿瘤方面的研究文献进行可视化分析,了解其研究热点及前沿动态,分析自2010年以来黄芪抗肿瘤的研究现状,为黄芪抗肿瘤机制的进一步研究提供参考。方法:以中国知网(CNKI)及Web of Science中的数据库为数据来源,采用VOSviewer 1.6.18软件对纳入的2010-2022年黄芪抗肿瘤方面的文献进行文献计量学分析。结果:CNKI共纳入文献699篇,Web of Science纳入1616篇文献。黄芪抗肿瘤的发文量呈现出波浪式前进的趋势,所涉及的学科领域与基金支持相对较广,研究机构主要以全国各省中医药大学为主,涉及胃癌、宫颈癌、甲状腺癌、结肠癌、肝癌等多种癌症,主要有效成分为黄芪多糖、黄芪皂苷类、黄酮类等,主要的研究重点为免疫调节、肿瘤微环境等,其中黄芪多糖抗肿瘤出现的频次较高,因此黄芪多糖抗肿瘤的深入研究将成为黄芪抗肿瘤研究领域的热点。结论:21世纪以来,黄芪抗肿瘤研究取得了持续进步,特别是对黄芪注射液及黄芪多糖抗肿瘤的大量研究,促进了黄芪抗肿瘤新药理作用的发现与应用,提高了黄芪资源潜在的经济价值。展开更多
基金supported by the National Basic Re-search Program of China (No2003CB214603)
文摘Given sustaining exploration, the eastern zone of the Sulige gas field may soon become a key area of exploitation. In order to explore its genesis, types and distribution of the reservoir sandstones in the eastern zone of this gas field, we focused in our study on the provenance and detailed sedimentary facies of sandstone of the He8 （the eighth part of the Shihezi formation, Permian system） and Shanxil （the first part of the Shanxi formation, Permian system） members, based on core observations, analyses in petrography, granularity and logging. The results show that： 1） the sandstone provenance of Shanxil and He8 in the eastern zone of the Sulige gas field is from the north of the Ordos Basin, characterized by dual directions from the north and northeast. 2） The He8 and Shanxil members were deposited in a fluvial-delta sedimentary system. The He8 was mainly deposited in braided rivers, in- cluding braided channels, channel bars, levee and floodplain sub-environments, whereas the Shanxil Member was deposited in braided rivers and deltas, including braided channels, channel bars, floodplains, tributaries and inter-tributary sub-environments. 3） Sedimentary facies bands migrated in drastic fashion towards the basin from the Shanxil to the He8 Member. Base levels of sedi- mentation generally present a trend of small increases in-amplitude, large decreasing amplitudes and slow and gradual Increases. 4） The continuity of the reservoir sandbodies along the source direction is better than that perpendicular to the direction. Compared with Shanxil, both dimensions and continuity of the sandbodies in He8 are better from which we conclude that it is the most fa- vorable part of the reservoir.
文摘目的:通过对中药黄芪抗肿瘤方面的研究文献进行可视化分析,了解其研究热点及前沿动态,分析自2010年以来黄芪抗肿瘤的研究现状,为黄芪抗肿瘤机制的进一步研究提供参考。方法:以中国知网(CNKI)及Web of Science中的数据库为数据来源,采用VOSviewer 1.6.18软件对纳入的2010-2022年黄芪抗肿瘤方面的文献进行文献计量学分析。结果:CNKI共纳入文献699篇,Web of Science纳入1616篇文献。黄芪抗肿瘤的发文量呈现出波浪式前进的趋势,所涉及的学科领域与基金支持相对较广,研究机构主要以全国各省中医药大学为主,涉及胃癌、宫颈癌、甲状腺癌、结肠癌、肝癌等多种癌症,主要有效成分为黄芪多糖、黄芪皂苷类、黄酮类等,主要的研究重点为免疫调节、肿瘤微环境等,其中黄芪多糖抗肿瘤出现的频次较高,因此黄芪多糖抗肿瘤的深入研究将成为黄芪抗肿瘤研究领域的热点。结论:21世纪以来,黄芪抗肿瘤研究取得了持续进步,特别是对黄芪注射液及黄芪多糖抗肿瘤的大量研究,促进了黄芪抗肿瘤新药理作用的发现与应用,提高了黄芪资源潜在的经济价值。
