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| 1 | 陕北斜坡上古生界构造裂缝及其天然气成藏意义显示文摘鄂尔多斯盆地陕北斜坡上古生界气藏发育多套储层,中上部储层(石盒子组及石千峰组)与烃源岩(山西组下部及本溪组煤系地层)之间发育280~350m致密砂泥岩隔层,由于盆地断裂构造不发育,天然气运移通道及成藏模式成为该区气藏研究的焦点。在岩心观察、微裂缝研究、测井解释、岩心孔隙度-渗透率实验研究的基础上,结合成岩作用及裂缝形成时间分析,对研究区上古生界隔层裂缝分布与中上部气藏之间的匹配关系进行了系统研究。结果表明:研究区上古生界主要发育剪性裂缝,裂缝形成于晚侏罗世早白垩世,裂缝的形成在改善储层渗透性的同时,为天然气的纵向运移提供了必要的运移通道。综合分析认为:研究区上古生界隔层裂缝与中上部气藏在时空上具有良好的耦合关系,形成了基于裂缝运移及砂岩储存的石盒子组与石千峰组'岩性-裂缝型'气藏。 | 万永平 王根厚 归榕 李春霞 银晓 周进松 | 2013 | 吉林大学学报(地球科学版)2013，43，1： | 12 |
| 2 | Diagenesis and Their Succession of Gas-bearing and Non-gas-bearing Reservoirs in the Sulige Gas Field of Ordos Basin,China显示文摘Comparisons have been made among lithology, diagenesis, and reservoir characteristics of gas-bearing and non-gas-bearing ones in the Sulige gas field of the Ordos Basin based on the laboratory analysis of thin sections, scanning electron microscope, and liquid inclusion of the reservoirs. The reservoirs of the Sulige gas field are now in the middle stage of diagenesis and have undergone compaction, cementation and dissolution. The secondary pore of the reservoir originated from the dissolution of the feldspar and tuff because of the organic acid action from the source rocks during the diagenetic middle stage. Gas-bearing reservoirs are common in soluble pore diagenetic facies of coarse detritus quartzose sandstone, whereas non-gas-bearing ones are common in tense compaction diagenetic facies of mud-bearing medium-fine detritus quartzose sandstone and residual intergranular pore diagenetic facies of mud-bearing medium-coarse detritus quartzose sandstone. The secondary pore is developed in gas-bearing reservoirs of the Sulige gas-field as the medium-coarse grain reservoirs formed in a powerful sedimentary environment and experienced strong dissolution. However, the sediments of fine grain size form the non-gas-bearing reservoirs because of less residual primary pore and secondary pore. | ZHU Xiaomin LIU Chenlin ZHONG Dakang HAN Xuefang | 2009 | Acta Geologica Sinica(English Edition)2009，83，6： | 9 |
| 3 | Late Carboniferous-Early Permian Sequence Stratigraphy and Depositional Evolution in the Northeast Ordos Basin,North China显示文摘顺序地层学的分析被用于东北 Ordos 盆的上面的含碳降低二叠的沉积继任,北方中国基于从十条全部记载的曲线和八个露头获得的数据。lithostratigraphical 单位的外形框架,太原形成在二个外形协会包括七外形,从 fluvio 三角洲变化到架障碍岛。外形在一个 chronostratigraphical 框架以内被介绍,由系统道连接了,它接着由充满表面和顺序边界是有限的。六个第三顺序的 depositional 序列被认出,由六种类型跳了 2 不顺从。一个浅得向上的来自於大陆的海沉积模型被创造,它由沙岩,煤缝接和碳酸盐继任组成。 | YANG Minghui LIU Chiyang LAN Chaoli LIU Le LI Xin ZHANG Kunshan | 2010 | Acta Geologica Sinica(English Edition)2010，84，5： | 7 |
| 4 | Geological Conditions of Tight Sandstone Gas Accumulation by Diffusion in Sulige Gasfield,Ordos Basin,China显示文摘1 Introduction Tight sandstone gas reservoirs have become the focused field in the global unconventional natural gas exploration and tight sandstone gas output accounts for 75%of the unconventional gas output(Zou et al.,2013).In China,tight sandstone gas reserves and output account for a third of the whole country natural gas reserves and | ZHAO Zhongying LU Shan | 2015 | Acta Geologica Sinica(English Edition)2015，89，A01： | 2 |
| 5 | Geological Controls on High Production of Tight Sandstone Gas in Linxing Block, Eastern Ordos Basin, China显示文摘Tight sandstone gas in the Linxing Block, eastern Ordos Basin, has been successfully exploited. The high performance is mainly a result of the special geological conditions. The key geological controls for high production have been discussed on the basis of seismic data, field observation, sample features, mercury porosimetry, mechanical properties, and basin modeling. Firstly, the coal measures have good gas generation potential, not only because of the existence of coalbeds and organic-rich shales, but also because coal laminae and microbial mats in the shales significantly increase their total organic carbon(TOC) contents. Secondly, except for the uplifted zone of the Zijinshan complex and the eastern fault zone, rare large faults develop in the Carboniferous–Permian sequence, ensuing the sealing capacity of cap rock. Small fractures generally concentrated in the sandstones rather than the mudstones. Thirdly, gas accumulation in the Linxing Block was controlled by the tectonic, burial and thermal histories. Gas accumulation in the Linxing Block started in the Late Triassic, followed by three short pauses of thermal maturation caused by relatively small uplifts;the maximum hydrocarbon generation period is the Early Cetaceous as a combined result of regional and magmatic thermal metamorphisms. Field profiles show abundant fractures in sandstone beds but rare fractures in mudstone beds. Mechanical properties, determined by lithostratigraphy, confine the fractures in the sandstones, increasing the permeability of sandstone reservoirs and retaining the sealing capacity of the mudstone cap rocks. The modern ground stress conditions favor the opening of predominant natural fractures in the NNW-SSE and N-S directions. These conclusions are useful for exploring the potential tight sandstone gas field. | QI Yu JU Yiwen MENG Shangzhi YU Kun LI Wuyang JIA Tianrang WU Jianguang CHEN Wangang LUO long | 2020 | Acta Geologica Sinica(English Edition)2020，94，2： | 0 |
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