Control of coupling among three major factors for formation of high-efficiency gas reservoir A case study on the oolitic beach gas reservoir in Feixianguan Formation in the northeast Sichuan Basin

Through a case study of the high-efficiency gas reservoir in Feixianguan Formation in the northeast Sichuan Basin, quantitative and semi-quantitative analyses of key elements such as hydrocarbon generation, migration and accumulation, and reservoir evolution as well as their interplay in the critical moment of reservoir formation controlled by the energy field were carried out, by means of numerical modeling of the energy field. It was found that the climax time for Permian hydrocarbon generation was Late Triassic-Early Jurassic and accumulation of oil and gas has resulted in large-scale paleoreservoirs in paleostructural traps in Feixianguan Formation, a process facilitated by fractures connecting the sources. The paleoreservoirs have been turned into high-efficiency gas kitchens due to pyrolysis, which resulted from deep burial at a temperature of 170-210℃ as induced by tremendously thick sedimentation in the foreland basin of Daba Mountain in Late Jurassic-Cretaceous period. Meanwhile, abundant acid gas like H2S produced from thermo-chemical sulfate reduction （TSR） at high temperatures leads to extensive dissolution of dolostone in the paleoreservoirs, which may in turn result in modification of the reservoirs and preservation of the reservoir rock porosity. The present distribution of gas reservoirs was ultimately determined in the processes of adjustment, cooling and decompression of the paleoreservoirs resulting from intense deformation in the front of Daba Mountain during the Himalayan orogeny.     

鄂北工区气测值影响因素及排除对策

介绍了油气勘探中气测录井的作用,在分析影响气测值各种因素的基础上,提出了相应的解决措施。     

液化石油气代替汽车燃料的应用现状及性能分析

本文对国内外用液化石油气作为车用燃料的应用状况作以介绍；对双燃料汽车的性能进行了分析。     

扩大用煤种类 降低发生炉煤气生产成本

对煤气发生炉使用优质无烟煤原料之外其他相关煤种反应适应性进行了试验研究，从选择煤种、确定用煤比例和生产过程控制等方面进行综合评价，提出了扩大用煤种类，降低生产成本的有效途径。     

“可控脉冲压裂”技术名称考

本文透过可控脉冲压裂技术的发展过程,分析了在这一过程中听用过的名称的含义及其使用情况和趋势,阐述了这一名称最能代表这项技术的基本特征,并把这项技术与其他压裂技术区别开来。因而认为,采用“可控脉冲压裂”这一名称比用其他名称更为合适。     

气相色谱法测定中药药膏中的樟脑

本文建立了气相色谱法测定中药药膏中的樟脑分析方法。对色谱的条件,回收率以及样品的予处理进行了研究,并成功地用于药膏中樟脑的测定。     

手提式13 kg F-12气瓶实际应力测试与分析

国产手提式13 kg F-12气瓶在生产过程中,发现比国外相同规格的产品壁厚大一倍,重量也相应增加一倍。为了分析产生这种差异的主要原因,对此气瓶进行了实际应力的测试与分析。应力与应变的测定采用电阻应变测量法。由实际的应力测试数据,从壁厚强度、设计压力、焊缝系数、冷作硬化等方面进行了研究。     

Dynamical Mechanisms of Effects of Landslides on Long Distance Oil and Gas Pipelines

According to the investigations on the oil and gas pipelines such as the Lan-Cheng-Chong pipeline and the Southwest pipeline, there are two ways of laying pipeline： pipelines paralleling （approximately） to the main slide direction and pipelines perpendicular （approximately） to the main slide direction. If earth-retaining walls have been built for pipelines paralleling to the main slide direction, they will prevent the lands from sliding; On the contrary, without earth-retaining walls, the sharp broken rocks in the backfilling soil will scratch the safeguard of the pipeline when the landslides take place. Pipelines perpendicular to the main slide direction can be classified into four types according to the relative positions between pipelines and landslides： Pipelines over the slide planes, pipelines inside the fracture strips of slide planes, pipelines below the slide planes and pipelines behind the backsides of landslides. The different dynamical mechanisms of the process in which landslide acts against pipelines are analyzed based on whether the pipelines are equipped with fixed frusta, because the sliding resistance depends on whether and how many fixed frusta are equipped and the distance between frusta.     

增压流化床（PFBC）烟气流量测量

增压流化床（ＰＦＢＣ）烟气流量测量蔡瑞洪，蒋守国，王双群，贾玉琴（东南大学热能所，南京２１００１８）为了估算烟气轮机的热效率，必须测量含尘烟气流量，ＰＦＢＣ含尘烟气经多级除尘后可使含尘浓度在２００ｍｓ／ｍ‘以下，尘粒粒径在１０ｕｒｎ以下，这种含尘烟气...     

“灭蚕蝇”中乐果含量的快速测定

采用气相色谱法快速测定农药“灭蚕蝇”中主成分乐果的含量，样品经丙酮萃取的直接进样，用氢焰检测器（FID）检测，以双柱法定性，外标法定量，本法线性良好，回收率98．9％，变异系数1．2％，满足分析精准确要求，且简便快速，适用性强。