应用吸水剖面资料确定吸水层动态残余油饱和度的方法

基于岩心长期注水试验资料，认识到吸水层的残余油饱和度的变化是一个缓慢减小的过程。文章给出了动态残余油饱和度的概念，提出了利用吸水剖面测井资料来确定动态残余油饱和度的方法。通过现场实测资料的解释，建立了动态残余油饱和度与吸水层每米累计吸水量的定量关系，为剩余油分布研究提供新思路。     

油气输导体系的类型及配置关系

将输导体系划分为储集层输导体系、断裂输导体系和不整合输导体系3大类，8种类型，指出输导体系的时空配置关系是决定油气藏的重要因素；着重阐明了输导层在空间和时间上的配置关系，认为这些配置关系是影响输导体系有效性的重要因素；提出了运移级次性的概念，讨论了划分运移级次对油气运移研究的意义，指出准噶尔盆地西北缘邻近玛湖以储集层输导体系和不整合输导体系为主．边缘地区以断层输导体系为主。浅层油气成藏期主要取决于断层的活动期。     

Stretchable Gold Tracks on Flat Polydimethylsiloxane (PDMS) Rubber Substrate

A process to fabricate stretchable gold tracks on silicone rubber substrates is studied by XPS, static water contact angle measurement, AFM, and SEM. The process involves several steps: removing uncured oligomers by hexane Soxhlet extraction; pre-stretching the substrate; activating the strained silicone surface by an oxygen plasma treatment; coating the strained substrate with 5 nm titanium and 80 nm gold layers; and finally releasing the sample. The plasma treatment creates a thin brittle silica-like layer that temporarily increases the substrate's surface energy. Indeed, the plasma treatment is followed by a hydrophobic recovery. As a consequence, the delay between plasma treatment and metal deposition has to be reduced as much as possible. The silica-like layer can be nicely observed after release. The entire process allows us to obtain stretchable metallized samples that remain conductive even after an excessive deformation leading to electrical failure.     

Effect of carbon surface oxidation on platinum supported carbon particles on the performance of gas diffusion electrodes for the oxygen reduction reaction

The effect of carbon surface oxidation on platinum supported carbon particles (Pt/C) with nitric acid was investigated by cyclic voltammetry, electrochemical impedance spectroscopy, polarization experiments and chronoamperometry. Cyclic voltammograms, polarization curves and electrochemical impedance spectra showed that the treated catalyst had much larger active surface area and higher ionic conductivity than the untreated catalyst, and provided enhanced performance for oxygen reduction. The formation of acidic groups was examined by IR spectra. The Pt/C surface oxidation had a large effect on the performance of a gas diffusion electrode for oxygen reduction reaction.     

Water and salt permeability of reinforcement polymer‐gel composite membrane

The charged mosaic polymer membrane (CMM) without reinforcement and the composite charged mosaic polymer membrane (CCMM) with reinforcement were investigated in terms of salt and water transport (permeability). The composite charged mosaic polymer membrane (CCMM) with reinforcement showed a unique transport behavior such as preferential material transport L_p and ω. Water permeability coefficient, L_p and salt permeability coefficient, ω were estimated by taking account of active layer thickness of composite polymer gel. The L_p and ω values of CCMM with reinforcement were larger than those of CMM without reinforcement. On the other hand, the reflection coefficient of CCMM, σ, showed negative value, which suggested preferential material transport to solvent transport. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

羊二庄油田二断块NgI3小层低阻油层识别

在精细地层对比的基础上 ,细分目的层段。利用 40多口井的测井数据 ,建立了纯水层以及NgI3潜力层的“RT -RXO”与“RT -AC”关系图版 ,消除了钻井液侵入对冲洗带电阻率和地层电阻率的影响 ,并以此为油层复查的标准 ,识别出 3个潜力层。经补孔证实 ,消除钻井液侵入的影响可以识别出电阻率值在 3Ω·m以上的薄油层。     

薄层隔热保温涂料的研制及应用

常规保温材料的研究以提高孔隙率、提高热阻、降低传导传热性能为主,但其对流传热及辐射传热较难降低。当今以传热机理改进保温材料及保温结构是重要发展方向。文章介绍了一种借鉴国外航天工业用高科技绝热涂层的技术思路,并结合国情研制成功的具有高辐射率的薄层隔热保温涂料,它可弥补常规保温材料的不足。该保温涂料以液态涂料方式存在,干燥后的涂层热阻较大,特别是热反射率高,可有效地降低辐射传热,施工方便,涂层薄,无接缝,附着力好,集防水隔热外护于一体。绝热等级为R21.1,热反射度0.79,热辐射率0.83,固含量54％,性能接近国外同类产品水平,成本仅为国外产品的1/4左右。可直接以涂层方式使用,也可与其他多孔保温材料复合构成低辐射传热结构,作为石油石化行业成品油罐及储罐的隔热保温、管道及设备的保冷及屋面隔热保温涂层使用,综合节能效益高。     

兴山煤矿地质构造体系的分析

通过简单的力学分析 ,总结了兴山煤矿断层发展、发育的规律。