摘要:从鲕粒碳酸盐岩层的测井响应特征出发,在提取岩性特征测井参数和建立电相—岩相库统计模式的基础上,采用极值方差聚类法实现自动分层,以灰色关联法识别单井剖面的鲕粒碳酸盐岩地层,并结合储层物性参数的精细解释建立了鲕粒储层测井识别模式,编制了相应的处理程序。应用表明,该套方法具有较高的分辨力,能识别出单井剖面中0.5?m以上的鲕粒储层,提高了鲕滩储层的纵横向预测精度。%Based on well logging response characteristic of oolid reservoirand electrical- lithologic database from log parameters of lithology, automatic classifying formation is realized. By gray conjunction method, oolid formation of each well profile is identified and the log recognition pattern for oolid reservoir is established by combining reservoir parameters and then the programs is developed. The application shows that this method has higher resolution and is able to classify oolid reservoirs of thicker than 0.5 meter and improves the prediction precision in vertical and horizontal direction.
摘要:对高渗透水泥体系的综合性能和防砂能力进行了试验分析研究。结果表明该高渗透水泥具有良好的施工性能和较强的阻挡出砂的能力;可以将该高渗透水泥在钻井和扩眼后泵注到可能出砂的裸眼层段进行先期防砂;对于已经出砂的油井,也可以在清洗砂堵后将高渗透水泥浆挤入高渗砂层,待其凝固后形成高渗透性人工屏障进行后期防砂。从而为防砂提供了一种新的技术思路,既是在钻井完后,在固井施工时对于可能出砂的层段就考虑采用高渗透水泥充填以代替裸眼完井、砾石填充等常规完井工艺。这将是裸眼完井技术的一种革新,是一种有发展潜力的防砂技术。%The experimental study on the performance and sand controlcapability of the high permeable cement has been conducted. Results have shown that the system has good effects in the operation and sand control. After drilling and reaming, we may pump the slurry into the expected open-hole productive zone where sand is probably produced in order to put up the initial sand control. For the oil well where sand has been produced, we may squeeze the slurry into high permeable sand after sand plug is cleaned out. It will form a high permeable artificial borehole after solidification in order to provide the sand control during later period. As a result, a new sand control technology is put forward. That is, the high permeable cement replaces some conventional completion methods such as open hole and gravel pack completion after drilling. This will be a technological innovation on open hole completion and a promising sand control technology.
摘要:Overrunning Speed Clutch is one of the key pats in impulseStepless Speed Regulators, and working capability depends on the control factor of its mechanism efficiency, twist moment and life - span. Aiming at the characteristic of poor dynamic - power, additional dynamic load and speed fluctuation of the higher pair Overrunning Speed Clutch, we put forward a new lower - pair Differential and Double Brake - block Overrunning Speed Clutch, and introducing the process of its evolution. The internal contact between the natural increment coefficient and brake blocks was studied, the natural increment coefficient is an important gist, which scales and distinguishes whether Differential and Double Brake - block Overrunning Speed Clutch can realize normal work or not. According to analyze the company coupler mechanism of Differential and Double Brake - block Overrunning Speed Clutch, we consider this kind of Overrunning Speed Clutch possesses the character functions that can pressurize through internal force. It can automatically adapt to the slight size change of output shaft in the direction of X axis and Y axis. So the working ability is improved.%超越离合器系脉动无级变速器的关键部件,其工作能力决定了整机效率的高低、输出扭矩的大小和耐用寿命的长短。针对目前广泛使用的高副式(如滚柱式)超越离合器承载能力低、工作稳定性较差的缺陷,介绍了新型低副差动双制动块式超越离合器的演化过程。研究了衡量差动双制动块式超越离合器工作能力的自然增值系数v与制动块个数n之间的内在联系。通过对该类型超越离合器的伴生连杆机构的分析,认为该机构属于具有自调自适应性的内力加压装置,即能够自动适应输出轴在其端面两个方向上的尺寸微量变化,提高了机构工作可靠性。
摘要:The distributed computing technology is now widely used insoftware development, which makes the developing of large complicated network application easy. The Component Object Model-COM and Distributed Component Object Model-DCOM technology is one of the distributed computing techniques presented by Microsoft. This paper analyzed the distributed computing Architecture based on COM/DCOM in detail, and summarized some implementing methods of COM/DCOM components and 3-tier client/server application. Finally, and 3-tier client/server application based on COM components was given.%分布式计算技术在软件开发中得到了广泛的应用,它使复杂的大型网络应用程序变得易于开发。基于组件对象模型COM(Component ObjectModel)和分布式组件对象模型DCOM(Distributed COM)的组件技术是微软的分布式对象技术。通过详细地分析基于COM/DCOM组件技术的分布式计算的基本原理,总结了开发COM/DCOM组件的基本方法和三层分布式应用程序的实现过程。最后,给出了一个用COM组件构造的三层分布式应用系统实例。
摘要:Program evaluation and review technique is a scientific method ofproduction management and plan management. It has widely used in industry and agriculture as well as scientific research. In order to practical circumstances, we put forward to a problem of carrying out program evaluation and review technique, and discussing the definition and the classification of carrying out program evaluation and review technique on the base of present program evaluation and review technique. It gave out the solution of the program and an example. The results of analysis and calculation have proved that it is simple and convenient. It has a guidance meaning for practical work.%网络计划技术是一种先进的组织生产和进行计划管理的科学方法,在工农业生产及科研工作中得到了广泛的应用。从实际应用的角度出发,提出了进行中网络计划技术的问题,并在现有网络计划技术的基础上,讨论了进行中网络计划技术的定义和分类,给出了进行中网络计划技术的计算方法和计算实例。分析与计算表明,该方法简便实用,对实际工作有一定的参考价值。
摘要:龙门山系属上扬子地台内晚中新生代断褶构造活动形成的山系。川西断陷区属龙门山系的前陆盆地,是地台型海相沉积与前陆型陆相沉积组成的复合型含油气区。超晚期(N—Q)断褶构造的发育程度控制了龙门山系山前带构造圈闭的发育和裂缝型气藏的形成。印支晚期形成的天井山古隆起因受强烈的超晚期断褶构造活动的影响,使原有的油气藏遭到破坏。天井山古隆起北东倾伏端的广元昭化地区,发育隐伏断裂系伴生的背斜群,是较理想的油气聚集带;而天井山古隆起西南倾伏端的绵阳—江油—安县地区,为北东向及北西向深断裂交叉复合区,是寻找中、浅层次生气藏的有利地区。%The formation of Longmen mountain system is duo to thefaulting-folding on the Upper Yangtz platform in late Mesozoic-Cenozoic. The western Sichuan fault-depression belonging to the foreland basin of Longmen mountain system is a composite oil-gas province that consists of platform-type marine sediment and foreland-type continental deposit. The maturity of latest (N~Q) fault-fold structure controls the development of structural traps in the foothill belt and the formation of fissured gas pools. Oil and gas accumulations on the Tianjingshan paleo-uplift formed in late Indosinian were destroyed as a result of intensive activities of the latest faulting-folding. Zhaohua area in Guangyuan county, at the NE pinching end of Tianjingshan paleo-uplift, is a favorable oil-gas accumulation belt because there developed a buried fault system and its accompanying fold group. And Mianyang~Jiangyou~Anxian area, at the SW pinching end of Tianjingshan paleo-uplift, is a favorable district to prospect middle and shallow secondary gas-pools as where is the conjunction of NE-trending and NW-trending deep faults.
摘要:火山岩油藏无论在国内或国外,其数量与规模都既少又小。我国的火山岩油藏主要分布在新疆,这些油藏注水开发已有数年,其动态特征表现为:油井产能高低悬殊;油井及油田产量递减均快、油藏无稳产期;注水井吸水差别大;注水开发时少数油井水窜水淹严重、而多数油井长期不见注水效果;油藏采收率多在8%~13%之间。上述注采特征与油藏裂缝发育、非均质性极强的地质特点是相一致的。根据上述特点,建议火山岩油藏的开发应慎重注水,重点做好高产井管理,水窜严重的井组采取停注或间注等方式进行开采。%Igneous-rock reservoirs in China are mainly distributed inXinJiang, where they have been under water injection recovery for several years. Performance data show that these reservoirs are characterized by: great variation in productivity among oil wells, quick decline of producing ability for both oil wells and oil field, non-existence of a stable production period, and marked difference in absorption capacity among injection wells. Furthermore, during injection production, a few producing wells would experience severe water channeling or be quickly flooded out while most other wells would not witness injection effect for a long time. And the oil recovery is typically around 8~13%. All these are consistent with the geological character of well-developed fractures and strong heterogeneity of the reservoirs. In accordance with such characteristics, it is strongly suggested that in the development of these reservoirs water injection be carefully planned, more attention be given to the management of the high-production wells, and water injection into the well groups experiencing severe water channeling be terminated or kept at interval.
摘要:In accordance with wall of well-bore instability induced by boundwater on clays, Infrared spectrum is utilized to determine the types and boundary line of bound water on clays, and the information about chemical-bonding in water and interaction between water and clay-mineral. The results show that clay-minerals adsorb water when they interact with water. The O—H's expanded and contracted frequency v will reduce along with adsorbed water content growth in hydro-clays. The process that O—H's expanded and contracted frequency v changes along with relative vapor pressure p/ps has the characteristics - fast first, slow then, fast again, and steady forever. There are two clear turning points which are p/ps=0.9, 0.98,the two turning points are the special humidity of clay-water system. The relative vapor pressure 0.9 is the boundary line between the strong bound water and the loose bound water(osmotic bound water) on clays, the relative vapor pressure 0.98 is the boundary line between the loose bound water and free water on clays. The results are identical with Ion exchange.%针对泥页岩吸附结合水诱发或加剧井壁不稳定问题,采用红外光谱法对粘土表面结合水界限进行了定性确定,同时获得有关水分子中化学键合及水分子与粘土矿物间相互作用的信息。结果表明,粘土矿物能与水相互作用而吸附结合水,随着粘土吸附结合水量增多,水合蒙脱土中水分子的伸缩振动频率ν随之降低。在伸缩振动频率ν随相对水气平衡压p/ps的变化过程中,存在先快、中间慢、后期又快直至稳定的特点,出现两个明显的转折点p/ps=0.9、0.98,它们为粘土—水体系的两个特征湿度,前者为粘土表面强结合水与松散结合水(渗透结合水)之间的交界点(界限),后者为松散结合水(渗透结合水)与自由水之间的交界点(界限)。其结果与离子交换法获得的结果相一致。