土壤渗滤处理技术在海岛生活污水处理中的应用     

焦卫东 《台湾海峡》2005,24(3):304-309

土壤渗滤处理系统设备简单、投资少、操作管理方便、能耗低,净化效果良好,在处理海岛生活污水领域具有广阔的发展前景.根据鼓浪屿目前污水水质、水量的特点,采用土壤渗滤高度水处理技术对污水进行处理,污染物经过土壤的物理、化学和生物作用,出水达到《城市污水再生利用城市杂用水水质》(GB/T18920-2002),具有不产生污泥,运行简单,氮磷去除效率高,无二次污染等特点.  相似文献   

A Linear Programming Model for Seabed Oil-Gas Pipe Network     

LI Hongwei  TAN Jiahua Ph. D. Candidate  School of Naval Architecture  Ocean Engineering  Shanghai Jiaotong University 《中国海洋工程》1998,(4)

This paper analyzes the pipe network system of oil-gas collection and transportation foroffshore oilfield development.A"0-1"integer linear programming model is constructed to optimize theinvestment of seabed pipe network.The mathematical model is solved by the spanning tree method ofgraph theory and network analysis.All spanning trees of a network graph compose all the feasible solu-tions of the mathematical model.The optimal solution of the model is the spanning tree with the minimumcost among all spanning trees.This method can be used to optimize the seabed pipe network system andgive a minimum cost plan for the development of offshore marginal oilfield groups.  相似文献   

油田水动力系统与油气藏的形成   总被引：6，自引：0，他引：6  

陈建文  厉玉乐  孙德君  闫同生 《海洋地质与第四纪地质》1999,19(4):31-38

油田水中存在“沉积承压水”和“地表渗入水”两个相对独立而又相互作用的水动力系统,前者由上覆地层重量所引起的地静压力以及地静压力等引起的异常孔隙流体压力所形成,具有内循环承压式水交替特征,后者为大气降水和地表水向储集层的渗入而形成,以外循环渗入或水交替为特征。这两大系统（尤其是前者）的作用在很大程度上控制了含油气盆地中油气的运移、聚集和保存,油气聚集区主要位于水文地质带中的交管阻滞一停滞带内,沉积交替强度的低值区是油气富集区,沉积水的离心流使凹陷中的油气围绕凹陷中心呈带状分布。  相似文献   

烟台市污水处理深海排放工程设计方案研究与选择   总被引：2，自引：0，他引：2  

王文喜  李明基 《海岸工程》1997,16(1):30-35

沿海城市污水处理深海排放工程在我国起步较晚，烟台市污水处理深海排放工程我国目前规模最大的同类工程，且已进入施工阶段，本文详细阐述了该工程及水工设计方案，在我国城市污水２深海排放工程领域作了积极有益的探索。  相似文献   

松辽盆地葡萄花油田北部鞍部地区成藏控制因素分析   总被引：2，自引：2，他引：0  

张文起  车廷信  王长生  王李郑 《现代地质》2008,22(4)

在系统描述葡萄花油田北部鞍部地区构造特征和断裂体系的基础上,分析了烃源岩大量排烃期与构造形成时期的匹配关系、砂体分布、地层压力和断层封闭性对研究区成藏的控制作用。研究结果表明:烃源岩大量排烃期和构造形成时期良好匹配,地层压力低势区和在成藏时期断块边界断层侧向开启是成藏的有利条件,构造和砂体分布则是成藏的主要控制因素。研究区成藏条件较好,可作为有利扩边潜力区。  相似文献   

Study on the connectivity of heavy oil reservoirs by ultraviolet spectrum technique in the western part of the QHD32-6 oilfield     

Yaohui Xu  Dan Chen 《中国地球化学学报》2008,27(3):306-309

As a new method, the ultraviolet spectrum technique is applied to studying the connectivity of biode-gradable heavy oil reservoirs. The similarity of crude oils can be judged according to the extinction coefficient （E） because aromatic hydrocarbons and non-hydrocarbons have conjugated bonds and obvious absorption in the ultraviolet range, and different materials have different characteristics and additives. The relationship diagram is made in terms of the extinction coefficients （E） of the samples by taking E as the Y-axis and wavelength as the X-axis. The connectivity of oil reservoirs is estimated according to the curve positions and characteristic fingerprints of the sampies. The connectivity of part of the reservoirs in the western part of the QHD32-6 oilfield was studied with this method. The results showed that the connectivity of samples from wells F7 and F8 in the Nm-2 oil reservoir zone is good, that of samples from wells F17 and F20 in the Nm-1 oil reservoir zone also is good, and that of samples from wells F17, F19, and F20 is poor.  相似文献   

Application of Spectral Decomposition to Detection of Fracture-Cavity Carbonate Reservoir Beds in the Tahe Oiifieid, Tarim Basin, NW China     

Liu Xiaoping  Yang Xiaolan  Zhang Yazhong  Han Long 《《地质学报》英文版》2008,82(3):530-536

Ordovician fracture-cavity carbonate reservoir beds are the major type of producing formations in the Tahe oilfield, Tarim Basin. The seismic responses of these beds clearly changes depending on the different distance of the fracture-cavity reservoir bed from the top of the section. The seismic reflection becomes weak or is absent when the fracture-cavity reservoir beds are less than 20 ms below the top Ordovician. The effect on top Ordovician reflection became weaker with deeper burial of fracture-cavity reservoir beds but the developed deep fracture-cavity reservoir beds caused stronger reflection in the interior of the Ordovician. This interior reflection can be divided into strong long-axis, irregular and bead string reflections, and was present 80 ms below the top Ordovician. Aimed at understanding reflection characteristics, the spectral decomposition technique, which uses frequency to ＂tune-in＂ bed thickness, was used to predict Ordovician fracture-cavity carbonate formations in the Tahe oilfield. Through finely adjusting the processing parameters of spectral decomposition, it was found that the slice at 30 Hz of the tuned data cube can best represent reservoir bed development. Two large N-S-trending strong reflection belts in the mid-western part of the study area along wells TK440- TK427-TK417B and in the eastern part along wells TK404-TK409 were observed distinctly on the 30 Hz slice and 4-D time-frequency data cube carving. A small N-S trending reflection belt in the southern part along wells T403-TK446B was also clearly identified. The predicted reservoir bed development area coincides with the fracture-cavities connection area confirmed by drilling pressure testing results. Deep karst cavities occur basically in three reservoir bed-development belts identified by the Ordovician interior strong reflection. Spectral decomposition proved to be a useful technique in identifying fracture-cavity reservoir beds.  相似文献   

浊积砂体沉积微相及储层非均质性研究——以东营胜坨油田T74地区古近系沙河街组三段中亚段浊积砂体为例   总被引：1，自引：0，他引：1  

蔡传强  严科  杨少春  任怀强  陈宁宁 《高校地质学报》2008,14(3)

利用岩心观察、测井相分析、测井资料处理与评价、图像分析等方法,系统研究了胜坨油田T74地区古近系沙河街组三段中亚段浊积砂体的沉积微相及储层非均质性.研究表明,T74地区沙河街组三段中亚段储层由三期浊积砂体叠加形成,可划分为中心微相和边缘微相两种沉积微相带;各期浊积砂体储层非均质性较强,层内非均质性以韵律性不明显、渗透率差异大为主要特征,层间及平面非均质性主要受沉积微相控制,中心微相储层的物性要好于边缘微相;不同沉积相带储层微观孔隙结构存在差异,中心微相主要发育中孔中喉和细孔中喉型孔隙结构,边缘微相主要发育细孔细喉以及微孔型孔隙结构.  相似文献   

基于MapObjects的城市污水管网信息系统     

桑稳姣  阮戟 《地理空间信息》2008,6(2):22-24

以地理信息系统为技术支持,结合在线监测技术,在VB环境下利用MapObjects控件进行二次开发建立了污水管网信息系统。该系统能对污染源排污状况及污水管网运行状况进行实时监控,是城市污水管网运行管理强有力的工具。  相似文献   

Numerical simulation of migration–accumulation of oil resources     

Yirang Yuan  Yuji Han 《Computational Geosciences》2008,12(2):153-162

Numerical simulation of oil migration and accumulation is to describe the history of oil migration and accumulation in basin evolution. It is of great value to the evaluation of oil resources and to the determination of the location and amount of oil deposits. This thesis discusses the characteristics of petroleum geology and permeation fluid mechanics. For the three-dimensional problems of Dongying hollow of Shengli Petroleum Oil Field, it puts forward a new model and a kind of modified method of upwind finite difference fractional steps implicit interactive scheme. For the famous hydraulic experiment of secondary migration–accumulation, the numerical simulation test has been done, and both the computational and experimental results are basically identical. For the actual problem of Dongying hollow, the numerical simulation test and the actual conditions are basically coincident. Thus, the well-known problem has been solved.  相似文献