coal measure strata meaning in Chinese
煤系地层
Examples
- Through research , the organic matter of source rocks in carboniferous - permian coal measure strata began first hydrocarbon - generating in mesozoic , and the first hydrocarbon - filling took place . but , because of yanshan movement later , the carboniferous - permian strata rose , as a result , the first hydrocarbon - generating and reservoir - forming paused ; in early tertiary period , because carboniferous - permian strata dipping forward east originally turned into dipping forward west , the prototype of faulted block began to form gradually ; by the end of sha - 3 period of early tertiary , the paleogeotherm of carboniferous - permian strata exceed the mesozoic ' s temperature again , and accordingly , abundant hydrocarbon was generated and expulsed secondly . the trap continued to develop ; from the end of late tertiary to quaternary , the second hydrocarbon - generating and expulsing got to its peak , and the second reservoir - forming was over
研究表明，本区石炭?二叠纪烃源岩在中生代发生一次生烃和排烃，并有油气充注，后因燕山运动导致地层抬升，一次生烃和成藏过程中止；在早第三纪，原来东倾的地层变为西倾，断块圈闭开始具雏形；至早第三纪沙二末期，石炭?二叠系的大部分地层古地温再次超过中生代一次生烃的温度，开始二次生烃和排烃，圈闭持续发育；晚第三纪末?第四纪，二次生烃、排烃达到高峰，二次成藏完成。 - On the basis of analyzing and chemically examining a large numble of samples , through comprehensively studying the reservoiring geological conditions as hydrocarbon generation , petrophysical property , reservoir - caprock assemblage and lithologic trap type , by use of mathematical statistics , it was considered that yulin gas field is located in the greatest hydrocarbon - generating intensity area in the basin and its hydrocarbon source rocks are the permo - carboniferous coal measure strata , thus possessing the material conditions of forming large - sized gas fields
通过大量的化验分析样品数据，采用数理统计的方法对生烃条件、储层物性、储盖组合配置、岩性圈闭类型等成藏地质条件进行了较为深入的研究，认为榆林气田处于鄂尔多斯盆地最大生烃强度区，其烃源岩为石炭二叠系煤系地层，具备形成大型气田的物质条件。 - Then i discussed methane desorption properties including cbm - bearing saturation , critical desorption pressure , the ratio between critical desorption pressure and original coal reservoirs pressure and difference of terra decompression ; cbm - bearing characteristics of coal seams including measured / academic cbm - bearing content , coalbed methane resources content and cbm resources abundance , etc . the author respectively gave a brief account of the basic characteristics of ancient and today ' s geothermic field at 1000m and 2000m depth , coal measure strata pressure field at the depth less than 1600m , structural stress field from jurassic to present , and ancient and today ' s fluid potential field ( that is water potential and gas potential distributing in coal measure strata )
分别简述了准噶尔盆地1000m及2000m深度今古地温场、 1600m以浅的煤系地层压力场、侏罗纪至今地应力场及煤系地层水势与气势分布的今古流体势场基本特征，进而对这“四场”特征及其互动关系与煤储层物性、可采性及煤层气聚集的关系进行了探讨。从构造背景、构造演化及构造类型几方面论述了本区构造作用的控气特征。