Development Strategies for Achieving High Production with Fewer Wells in Conventional Offshore Heavy Oil Fields in Bohai Bay,China

Development strategy for heavy-oil reservoirs is one of the important research interests in China National Offshore Oil Corp. （CNOOC） that plans a highly effective development for heavy oil fields in multilayered fluvial reservoirs because of their significant influence on marine oil and even on China＇s petroleum production. The characteristics analysis of multilayered fluvial reservoirs in the heavy oil fields in Bohai Bay indicates that large amounts ofoil were trapped in the channel, point bar and channel bar sands. The reserves distribution of 8 oilfields illustrates that the reserves trapped in the main sands, which is 20%-40% of all of the sand bodies, account for 70%-90% of total reserves of the heavy oil fields. The cumulative production from high productivity wells （50% of the total wells） was 75%-90% of the production of the overall oilfield, while only 3%-10% of the total production was from the low productivity wells （30% of the total wells）. And the high productivity wells were drilled in the sands with high reserves abundance. Based on the above information the development strategy was proposed, which includes reserves production planning, selection of well configuration, productivity design, and development modification at different stages.

less、fewer、lesser的用法比较

less 在英语中是一个常用词。初学者常常将它和与之对应的 fewer及由它派生的 lesser 相混淆。这三个词都是比较级形式,有时可互相换用,有时又不能。因此在用法上将它们作一比较是很有必要的。

A Prosperous Cooperative with Fewer Births

Nonglian Village of Sheyang County,Yancheng City.Jiangsu Province has 454 families(1,460 people)and 356 women of childbearing age.In the past,the village was povcrty-stricken and plagued with unwanted births.Between 1980 and 1990.more than 100 unplanned children were bom.

Fewer Children Mean a Greater Income

A new and novel way to encourage carefully planned parenthood among China's farmers:ofer them economic incentives for having fewer children.To show how this plan is working out on the grassroots level,we bring you short personal accounts from two young farmwomen.

为何与何为:新发展阶段民生服务领域供给侧结构性改革

在新发展阶段,无论是为应对复杂不确定的国内外发展环境而构建以国内大循环为主体的新发展格局,还是积极应对日益严峻的少子老龄化形势,都需要充分发掘民生服务的基础性、战略性作用。民生领域出现的“难”“贵”“烦”等社会问题,正是民生服务有效供给不足、作用尚未充分发挥的集中反映。强调依靠改革的办法促进供给灵活适应需求的供给侧结构性改革,是破解民生服务有效供给不足难题的有效途径。为此,必须直面重点民生服务领域存在的突出问题,积极践行以人民为中心的发展思想,深化供给侧结构性改革,加快建设包容性制度体系与政策生态,采取包容审慎性监管体制与方式,有效调动各类主体的积极性,全面推进不同性质与类型的民生服务包容性发展与治理。

传统慈孝伦理在少子老龄化社会如何转化

慈孝伦理是中国传统社会的基本伦理规范。其以亲慈子孝的家庭代际伦理为起点,推而扩之为社会国家的公共伦理,并以亲子天然血缘之情与“天生民而立之君”之道均以“慈幼之”的天道为最高依据,以自然农业经济生产方式和聚族、聚业而居的生活方式为基础,维系传统中国人代际间亲慈爱子—子敬孝亲的家庭和睦以及君慈惠民—忠君体国的社会稳定秩序。时至今日,慈孝观念和行为仍然是中国家庭伦理的底色,也是国家制定国计民生相关政策措施的出发点。但随着少子老龄化和城市化的冲击,出现了家庭主体缺失、多元,以及国家社会的公共伦理层面都面临全方位可持续地承受“老有所养”“幼有所育”的“一老一小”慈孝压力的新情况,传统慈孝伦理急需进行创造性转化和创新性发展。

Geometrical principium of fewer-axis grinding for large complex optical mirrors

Ultraprecision grinding is an important approach to efficiently fabricate large complex optical mirrors, and five-axis grinding method is commonly used for ultraprecision grinding. However, this method can hardly meet the high stiffness requirement for grinding large mirror, especially with a diameter over 2 m. Meanwhile, the use of fewer-axis grinding solves this problem, as it reduces the number of the grinder's axes to improve the rigidity of the system and minimize deformation for hard and brittle materials. But its characteristic of unfixed grinding point which changes with workpiece surface curvature increases geometric complexity and requires a higher geometric shape accuracy of grinding wheel. This paper parameterizes grinding wheel's geometric shape, reveals the relationship between fewer-axis and five-axis grinding methods from the point of view of the differential geometry, and establishes virtual-axis equivalence principium of feweraxis grinding. A quantitative method to determine grinding wheel's geometric parameters and its shaft inclination angle is proposed based on the requirements of geometric properties of optical mirror, grinder features and grinding process. Moreover, according to the properties of Gauss curvature of curved surface, the wear law of the toric grinding wheel is found and the surface geometric error distribution due to wear is achieved for fewer-axis grinding. The correctness of the principium and method above are verified through simulations.

Optimization of large capacity six-strand tundish with flow channel for adapting situation of fewer strands casting

Closing a single nozzle or multiple nozzles for a temporary casting operation(fewer strands casting)was common in a tundish due to insufficient molten steel or equipment failure.However,nozzle clogging usually happens under the situation of fewer strands casting.Hence,a temperature deviation index was introduced to characterize the temperature stratification of molten steel for a large capacity tundish,and a new calculation method of residence time curve was used to describe the different flow types of molten steel at each outlet.Based on hydraulics experiment and numerical simulation,important parameters of present case and modified case were compared.Under the situation of fewer strands casting,the proportion of internal-recycle flow after modification decreased from 30.68%to 24.55%;the standard deviation of the response time reduced from 27.59 to 13.16,and the interquartile range of temperature deviation index changed from 0.89 to 0.27.

少子老龄化背景下日本女性社会参与:政策推展、成效评估及动因分析

20世纪90年代以来,在少子老龄化背景下,日本通过颁布《男女共同参与社会基本法》等相关政策和法律,逐步打破了长期以来“良妻贤母主义”的垄断地位,加大了日本女性社会参与政策改革的力度,推动了建设“男女共同参与社会”的进程。其中,政策领域女性人权的彰显、经济领域政策目标的调适、文化领域男女共同参与的推进以及社会教育领域女性机构的建立,是推动日本女性社会参与政策不断调整和完善的主要动因。日本女性社会参与政策的实施成效和动因中折射出的“男女共同参与”观念、教育中嵌入的“性别认同”、政策中体现的“性别主流化”以及女性理论研究等,对推进日本女性社会参与起到了重要作用。这些经验对于中国女性社会参与政策的未来发展取向具有一定的参考价值。

Fewer Taxes, Better Growth

More details are emerging about the government’s 370-billion-yuaneconomic stimulus package for 2009 Acouple of recent reports detailing thegovernment’s plan to further stimu-late the country’s economy next yearhave caused a pleasant stir amonginvestors and enterprises alike.

诉源治理在基层人民法院中的实践与探索

诉源治理已成为当前最大限度减少和避免社会纠纷发生、有效控制诉讼案件总体增量、全面提升基层人民法院非诉解纷的综合治理能力、破解“案多人少”困境的重要举措。实践中存在的理念认知不深、治理力量不足、数字化建设不够等问题影响了诉源治理的成效。基层人民法院通过强化宣传引导,提高诉源治理社会认同度;加强诉源治理力量,积极壮大调解队伍;推进数字化建设,提高诉源治理整体效能等举措,一定程度上能够实现诉源治理在观念建构、队伍建设、智能化提升等导向性和创设性功能臻于至善,并以此推动形成以“源头预防为先,非诉机制挺前,法院裁判终局”为核心的诉源治理新格局。

more,less,fewer精讲精练

more,less,fewer常用来比较数量的多少。【知识梳理】1.more是形容词many,much'许多的'的比较级,既可以修饰可数名词,也可以修饰不可数名词,表示'更多的……'。例如:There will be more trees in the neighborhood.社区里将会有更多的树木。Is there more water pollution in cities?城市有更多的水污染吗?2.less是形容词little'少的'的比较级,与不可数名词连用,表示'更少的……'。

Fewer Americans Than Ever Getting Married——Study

男大当婚,女大当嫁。在当今之中国,这条古训的生命力依然强大。然而,这篇短文却让我们感受到了一种令人难以置信的美国新潮婚姻文化:男大不婚,女大不嫁。 据调查,1996年美国1000名未婚女子中的成婚者从1960年的87.5名跌到了49.7名！换言之,今天的美国只有5％的未婚女子结婚成家！ 然而,不婚或不嫁,并不意味当今的美国青年男女都成了“禁欲主义者”。下面的这组数据又让我们眼界一开: 同时,未婚而同居者则从1960年的439,000名上升到1998年的4.2million！ 宁可同居而不结婚,这是一个极为复杂的社会现象。本文没有详作探讨,只是顺便提到了以下3点: The secularization(现世化)of society, extended affluence(富裕),a changein what Americans expect from marriage. 笔者认为,其中的第3点比较实际。 本文的另一个重要信息是:and despite a small drop in the divorce rate,nearly 50 percent of all marriages will end in divorce. 当离婚率达到50％的时候,what Americans expect from marriage就可怜,甚至有点可怕了。“男大不婚,女大不嫁”也就不难理解了。

Fewer Cambodia Pupils Cheat on Final Exams

我曾经在柬埔寨大使馆工作过,深知该国“高考”作弊现象之猖獗。政府终于下了决心,下了猛药:动用警察和宪兵,使用监视器！也许是神经过敏了,一场骚乱差点发生。因为,在一家书店发现了今年高考试题的答案！】

U. S. Says Fewer High School Students Having Sex

我一直是贵刊的热心读者。贵刊在1997年第7期发表了余皑媛选译的“Mom,I Want to Live with My Boyfriend”、作为一个“小女初长成”的母亲,我读了之后,久久不能平静,甚至还掉下了伤心的泪水。女儿在外地读大学,回来 度暑假,我同自己的女儿促膝长谈,希望她从该文中记取有益的东西,让生活的风帆永远高高升起。今年第5期的《科技英语学习》又刊登了Rosemary Adang的“关于美国女学生未婚先孕的问题”的文章,我也浮想联翩,觉得中国和美国的国情大异,而中国人的许多传统美德是我们民族的源远流长的精神财富,我们应该永远继承和发扬下去。今日,我在Internet上读到了美国中学生的“性况”,惊讶之余,觉得文章信息丰富可靠。有必要让国人知道此真情。作为贵刊前两篇文章的续篇,我寄上加注的全文。望借贵刊一隅刊登。

Study Says Secret of Long Life Is to Have Fewer Children

妇女长寿的秘密在于生育少,这个看似寻常的观点在本文却有一番学术探讨。在详细考证和研究了英国贵族的生、死和婚姻情况后,有人提出:the secret of a long life appears to be: have fewer children.不仅少生能长寿,晚育也同样能长寿:…women who had their first child later in life lived longer that those who began reproducing early.当然,这个考证和发现尚有待进一步的发掘,文章末尾的一个观点则可视作一重要补充:For genealogy(系谱)studies we cannot distinguish the effects of genetic similarity(遗传类似)from those of common environment, so it remains to be seen whether the observed patterns are due to nature or nurture(营养品).】

What Causes Some People to be Left-handed,and Why Are Fewer People Left-handed than Right-handed?

为什么右手成为大多数人的优势手?为什么左撇子虽然是少数,但依然存在呢?一项医学研究显示,在双亲均为左撇子的家庭,子女是左撇子的机率为50％。另一个证据是,左撇子的比例在某些家族中明显高于一般家族,说明用手的偏爱与遗传直接相关。

改良IVF正常受精率计算公式在获卵少周期中的应用及资料分析

目的 探讨改良IVF正常受精率计算公式在获卵数少周期中的应用。方法 回顾性分析2015年1月至2022年5月于我院生殖医学中心行IVF/ICSI助孕治疗、获卵少(获卵1~3枚)患者的临床资料,共1 777个周期。根据授精方式不同分为IVF组(行IVF授精,1 192个周期)和ICSI组(行ICSI授精,585个周期),比较两组患者的一般资料、MⅡ卵率、正常受精率、改良正常受精率、优质胚胎率和可用胚胎率等。结果 2015年1月至2022年5月在我中心行辅助生殖治疗的患者中获卵少的周期共1 777个周期,占所有取到卵周期的比例为15.8%(1 777/11 231)。IVF组和ICSI组患者的一般资料比较无显著性差异(P>0.05)。IVF组的MⅡ卵率(89.9%vs. 81.4%)、优质胚胎率(51.0%vs. 43.1%)和可用胚胎率(84.6%vs. 74.8%)均显著高于ICSI组(P<0.05),正常受精率显著低于ICSI组(75.1%vs. 86.3%,P<0.05);而采用改良公式计算后,IVF组的改良正常受精率为83.6%,与ICSI组(86.3%)比较无显著性差异(P>0.05)。结论 对获卵少、非男性因素不孕的患者,采用改良IVF正常受精率的计算公式能更好地反映成熟卵受精情况。

延安时期少捕、慎押的历史考察及当代启示

陕甘宁边区保护劳动力的客观需求、先进的革命政治理念与边区法制人物的积极推动,是延安时期产生少捕、慎押司法观念的主要因素。陕甘宁边区以形式灵活的立法确立了少捕、慎押的法律规范,并通过严格逮捕程序、明确羁押要件、推动刑事和解等方式,有效降低刑事羁押人数,形成了少捕、慎押的红色司法经验。当代刑事司法中应当贯彻新时代“枫桥经验”,与时俱进契合社会需求,完善不捕、不押后相关配套制度规范,充分发挥刑事和解程序在化解社会矛盾中的作用,使少捕慎诉慎押刑事司法政策行稳致远。

少子化趋势对工程教育未来发展的影响初探

近年来我国人口形势发生了重大变化,少子化、老龄化趋势进一步加快,人口结构增长分化、区域性别比例呈现两极发展。与此同时,我国高等教育,特别是高等工程教育仍处于资源扩张阶段,作为投入要素的人口与人才供给要素的教育在未来将出现严重的供需矛盾,并深入影响经济产业和区域协调发展等各个方面。基于上述背景,文章分析了这种供需的紧迫形势,并借鉴美、日等国家和地区少子化趋势下高等教育的发展经验,梳理了少子化趋势对我国工程教育发展的未来挑战,呼吁和冀望教育管理者和实践者立足国家整体发展战略,转变观念、付诸行动,在教育全局上由规模扩张思维向提高质量、提高效率进行转变。