A Novel Topological Index F and Its Correlation With Standard Formaton Enthalpies of AB_n(g) Molecules

The topological index F* is defined and obtained by the method of a non-dimensional unit calculation in which three matrices multiply with each other. These matrices represent the connective cases of atoms in a molecule, the structural features of atoms on top and the bonded cases of the adjacent atoms respectively. The standard formation enthalpies of ABn(g) molecules were correlated with F'* (A = C, Al, Si, Ti, Zr, B = F, Cl, Br, I, H, n=1 -4) and these correlation coefficients are all more than 0.96. Some molecules (e.g CH4, SiH4,etc. )can be preferably handled by F* but can not be dealt with by other topological indices. By contrast to traditional hydrogen suppressed graph, the contribution of hydrogen atoms to structures and properties of molecules is considered.     

应用地层测试流动段资料确定油井稳定产能方法研究

提出了一种根据地层测试流动段压力资料预测油井稳定产能的方法，该方法以比采油指数作为对比参数，对测试比采油指数的计算进行了推导，采用回归分析方法建立了测试比采油指数和生产比采油指数之间的关系式。应用建立的关系式对其它井的稳定产能进行了预测，误差分析表明预测结果比较正确。     

高含酸性气碳酸盐岩气藏流体敏感性实验研究

对川东北雷口坡组、嘉陵江组、飞仙关组、长兴组高含H，S及032的碳酸盐岩储层流体敏感性进行了实验研究，结果表明岩样速敏损害弱～强，水敏和盐敏损害中偏弱～极强，碱敏损害严重。岩石学分析揭示，川东北高含酸性气碳酸盐岩储层发育伊利石、微晶石英、白云石、方解石、硫化钙等潜在损害物质。钻井完井液侵入会破坏储层各物质间的原始动态平衡，诱发储层损害。主要损害机理为：①储层流体pH增加引起黏土矿物以及微晶石英失稳；②碱液与微晶石英、长石、白云石反应生成硅酸盐、高岭石、水镁石等新矿相；③流体矿化度改变可降低伊利石微粒间的连接力；④硫化钙水解产生OH^-，过量的OH-与Ca^2＋结合形成氢氧化钙沉淀；⑤储层含水饱和度和流体离子浓度改变，致使焦沥青脱附并在储层深部沉积；⑥硬石膏水化膨胀、分散运移。针对该气藏损害机理，可采用屏蔽暂堵技术以形成优质滤饼，有效降低储层流体敏感性损害。图5表2参10。     

Continuous formation of slurry ice by cooling water–oil emulsion in a tube

Water-silicone oil emulsion with an additive, (C₂H₅O)₃SiC₃H₆NH₂, was examined as a heat storage material. A spiral tube used as a heat exchanger was immersed in a low temperature bath and the emulsion was circulated in the tube to make ice continuously. Ice was separated from the ice–liquid suspension in an outlet tank. The amount of formed ice, the temperatures of the inlet and the outlet of the heat exchanger, and the temperatures in the tube wall were measured and the overall heat transfer coefficient and the heat flux through the tube were calculated. Experiments were carried out, varying the flow rate, the temperature of cooling brine, and the thickness of tube wall. The condition under which slurry ice was formed continuously without adhesion of ice to the cooling wall was clarified. Though decrease in the thermal resistance of the tube increased the rate of ice formation or raised the brine temperature, it narrowed the range of the flow rate and of the brine temperature in which slurry ice was formed continuously.     

In Situ Formation of a Novel Nanocomposite Structure Based on MCM-41 and Polyethylene

M41S materials are prepared by in situ assembly of inorganic precursors and organic template and can be viewed as nanocomposites of the siliceous phase and organic surfactant. Calcination of these precursors gives the M41S materials that have been used to prepare novel nanocomposite structures, in which the organic phase inside the nano-sized pores is isolated by the nano-sized inorganic pore walls. The nanocomposite structures can be formed by in situ polymerization of monomers inside the channels. Polymerization of ethylene takes place inside the nano-sized pores, producing the desired nanocomposite structure. The resulting polyethylene was found to be a mixture of crystalline and amorphous phases.     

A new Thermo-viscoplastic Material Model for Finite-Element-Analysis of the Chip Formation Process

A new material model for describing the thermo-viscoplastic flow behavior of workpiece material in metal cutting is presented. In order to express the complex flow behavior which depends on the local strain, strain rate and temperature, a new methodology for sequential formulation is proposed. The material parameters which are achieved by using the flow stress data available at low strain rates are enhanced by matching the results of the experimental investigations and finite element simulations of the orthogonal cutting process. As a result, a material model which has a wide validity range of strain, strain rate and temperature is established.     

活性炭中甲烷水合物的生成动力学

在温度275．75－279．95K和压力5．6－9．6MPa的静置条件下，测定了14组甲烷水合物在活性炭中的生成动力学数据（压力－时间关系），分析了甲烷水合物在活性炭中生成的物理过程，结合边界层理论和结晶学原理，提出了单液膜传质控制机理的生成动力学模型，并求得了解析解,使用Levenberg-Marquardt方法拟合模型参数，模型预测值与实验值符合良好。     

垦东地区上第三系馆陶组上段成藏规律研究

通过对山东垦东地区构造特征，地层特征和储层特征的研究，从油气运聚，储盖组合，油藏类型及分布和油气控制因素等方面对馆陶组上段成藏规律进行了综合分析，研究表明，研究区的储层主要为曲流河沉积砂体，原油来源于周边的4个生油凹陷，通过不整合曲，储集层以及断层运移到垦东地区后聚集成藏。     

长脉冲激光沉积原位生成YBaCuO超导膜

用长脉冲激光(脉冲宽度150μs,波长1.06μm)辐照高温烧结的YBa_2Cu_3O_(7-x)靶,在6Pa的氧气压强下,巳在(100)YSZ单晶衬底上原位生成YBa_2Cu_(?)O_(7-x)超导膜。衬底置于750℃的加热器上,衬底与靶之间的距离5cm,用该法制得的薄膜光亮坚实,正常态呈金属性,零电阻温度为84.7K。用XRD和SEM对薄膜进行了分析研究。     

G104-5P42分支水平井钻井液工艺技术

G104-5P42井是在高尚堡G104-5区块构造较高部位部署的一口重点开发井，也是冀东油田第一口鱼骨型水平分支井，钻探目的是开发高浅北区Ng12油层，挖掘高浅北区井间剩余油潜力。该井主井眼斜深为2388m，水平位移为736．42m，水平段长243m，第一分支斜深为2342m，水平段长120．25m，水平位移为682．14m，第二分支斜深为2421m，水平段长117m，水平位移为761．73m。三开选用无固相甲酸盐聚合醇钻井液，在钻进油气层前加入GN-YBJ-I保护剂。应用结果表明，无固相甲酸盐聚合醇钻井液具有好的防塌能力和润滑减阻效果，性能稳定、黏度、切力较低，有利于减少环空压力损耗；在油气层段密度控制在1．08g／cm^3以内，为近年来同区块密度使用最低井，减小了有害固相及滤液对储层的伤害密度，经测试该井获高产油流；该井全井平均机械钻速为15．09m／h，钻井周期比原设计提前15d。该体系的配制及维护成本较高，适宜在目的层井段使用，但可回收再利用。