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次生生物气
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  secondary biogenic gas
     Base on the pathway and mechanism of formation, biogenic gas was divided into five different sorts, as follow :early biogenic gas, low mature gas, late biogenic gas,secondary biogenic gas from degradation of crude oil and upgrading gas from secondary alteration of shallow oil and gas, which belonging to pristine and secondary biogenic gas respectively.
     依据生物气的形成途径和成因机理,可将广义生物成因气划分为早期生物成因气、低熟气、晚期生物成因气、原油降解次生生物气和浅层油气次生蚀变改造型天然气等5类,其分别属于原生型生物气和次生型生物气。
短句来源
  “次生生物气”译为未确定词的双语例句
     The coal reservoir's evolution history is rebuilt. The result shows that during the geological age of 120-23 Ma, the reservoir pressure, CBM content and CBM saturation are reduced due to the basement uplift; since 23Ma, the values of these parameters are resumed because coals are buried at shallow depth, generating secondary biogenic methane.
     分析了主要储层参数的变化规律及影响因素,恢复了其演化历史:即120Ma~23Ma间,储层压力、气含量、含气饱和度因煤系地层抬升剥鸿而降低,23Ma之后因煤层浅埋、次生生物气生成等原因而不同程度的恢复;
短句来源
     In coal bed gas exploration and development in recent years,the gas source of the coal bed methane is mainly considered from the viewpoint of thermogenic gas,however,whether the secondary biogas can be generated through the degradation of coal by anaerobic bacteria is always a problem concerned by the people.
     近年的煤层气勘探开发工作中,主要从热成气角度考虑煤层甲烷的气源,而煤能否被厌氧菌降解生成次生生物气则一直是人们所关心的问题。
短句来源
     It is concluded that the coal can be degraded into secondary biogas by anaerobic organism;
     结果认为,煤可以被厌氧生物降解生成次生生物气
短句来源
     The variation of methane carbon isotope can attribute to several complicated factors such as the type of source,maturity,effect of desorption diffusion migration,the mixture of secondary methane and the exchange reaction between CO 2 and CH 4.
     影响煤层气甲烷碳同位素变轻的因素相当复杂。 母质类型、成熟度、解吸扩散及运移效应、次生生物气的混入以及CO2 和CH4之间的同位素交换反应等都是影响煤层气甲烷碳同位素组成与分布的重要因素。
短句来源
     Much attention would be paid to secondary biogenetic gas pools with high exploration potential in eastern petroliferous basins and in northeastern margin of Junggar Basin.
     我国东部的含油气盆地和准噶尔盆地西北缘已发现了不少这类具有较大勘探潜力的次生生物气藏。
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  相似匹配句对
     It is concluded that the coal can be degraded into secondary biogas by anaerobic organism;
     结果认为,煤可以被厌氧生物降解生成次生生物气
短句来源
     ADVANCES IN SIMULATED TEST OF BIOGAS
     生物气模拟试验的进展
短句来源
     SECONDARY COLOUR OF JADEITE JADE
     翡翠的次生
短句来源
     biogas analyses in brief;
     生物气分析简介 ;
短句来源
     The Secondary Metabolism of Plant
     植物次生代谢
短句来源
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In coal bed gas exploration and development in recent years,the gas source of the coal bed methane is mainly considered from the viewpoint of thermogenic gas,however,whether the secondary biogas can be generated through the degradation of coal by anaerobic bacteria is always a problem concerned by the people.By use of the “Suspended inocula”as the inoculating source,an analog experiment on gas generation by biodegradation at different temperature ranks was carried out for two coal samples from the Carboniferous...

In coal bed gas exploration and development in recent years,the gas source of the coal bed methane is mainly considered from the viewpoint of thermogenic gas,however,whether the secondary biogas can be generated through the degradation of coal by anaerobic bacteria is always a problem concerned by the people.By use of the “Suspended inocula”as the inoculating source,an analog experiment on gas generation by biodegradation at different temperature ranks was carried out for two coal samples from the Carboniferous Permian in the Miaowan coal mine,Liulin,Shanxi.It is shown by the experiment that when the temperature exceeds 75 ℃,gas generation is stopped;the gas generated is methane and carbon dioxide and the methane has the property of light carbon isotope;the δ 13 C 1 is -49.16‰;and according to the gas composition and δ 13 C 1 value,the gas generated by the analog experiment belongs to biogas.It is concluded that the coal can be degraded into secondary biogas by anaerobic organism;the absolute content of coal bed methane in the shallow coal bed can be increased by secondary or superposition gas generation,thus raising the success ratio of exploration for coal bed methane;the existence of anaerobic environment reflects that the preservation condition of coal bed methane is good from other side;and the existence of secondary biogas in coal bed is a sign of surveying the coal bed methane reservoir.

近年的煤层气勘探开发工作中,主要从热成气角度考虑煤层甲烷的气源,而煤能否被厌氧菌降解生成次生生物气则一直是人们所关心的问题。采用“悬浮接种物”作为接种源,对山西柳林庙湾矿石炭、二叠系的两个煤样进行了不同温阶下的生物降解产气模拟实验。实验表明:温度超过75℃停止产气;所产气体为甲烷和二氧化碳,其中甲烷具有轻碳同位素值的特征,δ13C1为-49.16‰,从气体组成和δ13C1值来看,模拟实验所产气体属生物气。结果认为,煤可以被厌氧生物降解生成次生生物气;这种二次成气或叠加成气作用可以增加浅煤层中煤层甲烷的绝对含量,相应提高煤层甲烷的勘探成功率;厌氧环境的存在从另一个侧面也反映煤层甲烷的保存条件较好;存在煤层二次生物气是寻找煤层甲烷气藏的一个标志。

The research shows that under the same thermal evolution conditions,the δ 13 C 1 values of CBM is generally lighter than those of coal derived gases,except a few of samples.The variation of methane carbon isotope can attribute to several complicated factors such as the type of source,maturity,effect of desorption diffusion migration,the mixture of secondary methane and the exchange reaction between CO 2 and CH 4.

研究表明 ,在相同热演化程度条件下 ,除少量样品外 ,煤层气δ13 C1值一般较煤型气偏轻。影响煤层气甲烷碳同位素变轻的因素相当复杂。母质类型、成熟度、解吸扩散及运移效应、次生生物气的混入以及CO2 和CH4之间的同位素交换反应等都是影响煤层气甲烷碳同位素组成与分布的重要因素。

The Permian coalbed methane(CBM) reservoir with mixed secondary biogenic and thermogenic gas in the Huainan Coalfield, Anhui Province, is affected by complex geological and hydrogeological factors. The purpose of this paper is to provide a basic understanding of CBM reservoir-forming dynamic system mechanism, which involved the thermal flux and geotemperature fields, palaeo- and modern tectonic stress fields, and hydrodynamic field. Although the CBM reservoir in the Huainan Coalfield is usually considered as...

The Permian coalbed methane(CBM) reservoir with mixed secondary biogenic and thermogenic gas in the Huainan Coalfield, Anhui Province, is affected by complex geological and hydrogeological factors. The purpose of this paper is to provide a basic understanding of CBM reservoir-forming dynamic system mechanism, which involved the thermal flux and geotemperature fields, palaeo- and modern tectonic stress fields, and hydrodynamic field. Although the CBM reservoir in the Huainan Coalfield is usually considered as a conceptual model of synformal or/and basin-centered gas accumulation, but this model emphases that, after Permian coals reaching their maturity, it had suffered uplift in large scale, unload and reburied. Due to lose of thermogenic adsorbed gas, it resulted in that the coal reservoirs were in the unsaturated status. When meteoric water seeps through coal beds, in them secondary biogenic methane and CO2 are generated from wet gas and other organic matter by the metabolism of bacteria activity. In the process of groundwater centripetal drainage, the secondary biogenic gas carried in the front (or “washing” soluble gas) was pushed to the impermeable barrier or/and the structure hinge line, and was stayed and resorbed by coal matrix, or/and was full in coal cleats, which supplements the coal reservoirs and leads to the increase of gas content and saturation, and then, it was enriched and formed CBM reservoir. Therefore, the CBM accumulation in the Huainan Coalfield is mainly controlled by the evolution of coal reservoir-forming dynamic system, and the coupling relationship between the tectonic style and the energy fields.

淮南煤田由次生生物成因和热成因气组成的混合型煤层气藏,受各种地质和水文地质条件的影响和控制。本文通过热流场和地温场、古构造应力场和原地应力场以及地下水动力场的系统分析,探讨了煤层气成藏动力学系统的形成机制,进而提出了相应的成藏地质模型。淮南煤田的煤层气藏虽然属向斜式(或盆心)聚气模型,但是,该模型强调,作为附加气源的次生生物气的补充,成藏动力学系统演化、构造样式和能量场的耦合关系,是混合型煤层气富集成藏的主因。

 
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