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High-strength low-density oil field oil well cement mainly low, low permeability, easy loss cementing strata appear in the issue of lost circulation. In the low-voltage, low-permeability, easy loss stratigraphic drilling, cementing, logging and other underground work, the working fluid leakage under the pressure into the formation of the phenomenon of lost circulation. The use of high-strength low-density cement cementing oil wells can be effectively solved by cementing in the high pressure column of cement slurry, water slurry infiltration of oil, of oil pollution. At home and abroad for high-strength low-density study of oil well cement slurry system more and more concentrated in the admixture of materials and reduce the overall performance on the research, the main strength of the cement produced study material is rarely found in the literature. In this paper, Hailaer Daqing region of low pressure, low permeability, easy loss of formation, to carry out high-strength low-density study of oil well cement and cement matrix evaluate performance. Daqing Oilfield Cementing papers in accordance with the needs of the existing home and abroad in the study of high-strength low-density oil well cement slurry system, based on an increase of research on the cement matrix, high-strength low-density properties of oil well cement aging research, so that the cement mixture from the oilfield site Cementing to mix cement manufacturer by professional production possible. Research papers in the temperature of 45 ℃ conditions, low pressure, low permeability, easy loss cementing formation of high-strength low-density required for the preparation of oil well cement program, the use of closest packing theory, the nucleation theory techniques to study the cement matrix, reduce the material, the cement admixture of the three aspects of high-strength low-density properties of oil well cement, indoor study of the system. The results show that the study of cement matrix and reduce the materials and additives to optimize the preparation of high-strength low-density cement to meet the Daqing oil region Hailaer cementing requirements. The cement slurry prepared with a high early strength, suitable for thickening time, rheological properties and flow of good, good stability of cement slurry characteristics of the settlement to meet the needs of formation cementing. The cement blocks in the Daqing oil field cementing Hailaer more than 230 mouth, cementing quality. Key words: oil well cement base cement compressive strength of low-temperature rheological properties of low-density

1、答辩和论文虽然分两项，但最后只出一个成绩，而这个成绩以论文为主，答辩这块主要为了考察考生对论文条理的掌握和梳理，因此整个过程都是围绕论文，也就是说论文就是你答辩的范围，不会超出这个范围2、历年答辩这个环节的通过率都是比较高的，不用太紧张，紧张会影响发挥，楼主就记住，考官知道自考生在学术方面缺乏系统的教育，因此在考试期间不会太难为人的，只要正常发挥，一般问题都不大3、答辩最紧张的是看到前面的考生一个个进去的时候，这时候一定要稳住，也不要试图去问别人都考了什么，因为大家的论文选题不同，问题肯定不一样，无形中还增加了自己的紧张感4、答辩时考官可能会是1-3人，首先要表现出你的礼貌，如果是多位考官，要适当将视线平分，不要只盯着一个人；考试的时间通常控制在20分钟左右，根据考官对考生的考察深度拉长或缩短，一般3、4个问题就可以了5、考试前一定要针对论文系统复习，准备论文大致介绍（这个通常答辩时会是第一个要求考生做的），针对考官可能会深入询问的题干重点了解下，考试时考官会先要求考生阐述自己的论点，然后再根据考生的回答系统提出几个问题，要切记别不懂装懂，也不要说得过多，尽可能把考官的思路往你熟悉的部分引6、考试结束后不要试图询问考官你的考试成绩，这样容易造成考官的反感，反而引起反效果最后祝福楼主一切顺利，加油！希望我的答案可以帮到楼主，望采纳！

网友“suyupeking”回答基本上是这样的步骤，答辩其实不难，重在不要紧张，重在你的论文答辩中心都是围绕你的论文进行的，当然了这个论文来源也是来源于你对你所学的专业知识，好好准备论文，基本上不会出现什么问题，方舟无锡校区的学生论文答辩基本上还是通过的，从这个角度上看是不难的。

"It's hard to use a few words to the characteristics of outline of Japanese society, that ManHuaHua outline of easy. My impression is the culture of Japan with pragmatism audiences." This is the word. Writer scare (1) Japan and China not only geographically, "and is" quite on the culture is "line". Japan inherited Chinese culture, through hard work, continue to innovation, make the culture in the world, this is good at Paramount learning, good at innovation of Japanese. This can't help remind me of Japanese animation industry. Chinese animations origin early, early have shadow puppets, etc. And now, just mention that animation will think of Japanese doraemon, Slam Dunk ace, Japan's animation industry is already the Japanese economy's backbone industries, which of course also and the Japanese innovation consciousness is inseparable, while China's animation industry hasn't been too big progress. 3 product sushi see Japan Since many kinds of sushi, so, taste so no longer is a hard thing sushi, let's take a product yipin sushi: fresh light sushi -- advocate natural The fish in the sushi package is a raw food, the Japanese good food raw food are notoriously, someone said: "there are fish place had sushi". The Japanese is to keep food fresh, just put raw fish eating into rice bag. Japanese is the fear of nature, earthquakes and typhoon: volcano is active, activities, lack of resources will talk about people in letters a topic is scene. Season and Sushi's advocate natural, keep fresh, it is the Japanese pursues. fresh sushi. As is known to all, influenced by Confucianism thought in Japan, especially in the idea of "thought entrenched, Japanese reverence of SAN German prince is to pay attention to" and ". The 37 enacted in he presided over the first sentence in the constitution is "idea". (2) in view of this, the Japanese on the big livestock slaughter, thought and unfeeling, together with Japan plain small, cattle feeding, difficult Japanese seldom eat mutton. After the second world war, because the nutritional value that beef, it gradually eat beef and pork. Moreover, Japan all around, fishing is very convenient linhai, it creates Japanese dishes rarely raw food processing and characteristics. delicate sushi. Because Japan is island, coupled with the lack of resources, and no border, this natural environment neighbours its crisis consciousness dense, always afraid of what natural disasters in Japan to spend, genocide. Therefore, some Chinese preach to culture to Japan and to explain among Japanese. Such as "careless this idiom kill people, Japanese for" oil broken gate. They understand for: no oil (. break later), oil, an acknowledgment of rainy enemy will encountered. Therefore the Japanese associate like China, not for every meal oil to cook, to cherish oil, fuel efficient, live to peace. Therefore Japan as far as possible need not or less oil cooking dishes, as time passes development with delicate fresh for the Japanese dishes for the mainstream. pruning the sushi. Seafood Japanese cuisine, the biggest characteristic is fresh seafood. More than 4,000, seagirt islands by the Japanese islands, mild climate, four distinct seasons, has the advantageous fresh seafood, so to develop their own Marine dishes. Being determines consciousness, the development direction of the dishes on is no exception. In other words, local brew is cooking. Therefore, Japan's most people are very like to eat seafood. Pursue nature, advocate natural, formed the Japanese cuisine characteristics. Japan is a long-lived national average life expectancy, at present the first in the world. In addition to the natural environment and other factors besides, pursue natural diet in which also plays an important role it. delicate sushi -- pursue cuisine beauty Chinese food exquisite "color, aroma, taste", Japanese food is exquisite "color, shape, taste", here was a changed "form" word, the Japanese diet culture characteristics will show up. Japanese food does not pay attention to what you eat out, but special attention to "form". So, Japanese food is to use eyes to taste. It also accords with Japan. Japanese ground is narrow small and large population, protection, no damage to the natural landscape is the custom since ancient times. Japanese people always real beauty of inheriting their ancestors left. In the environment, diet permeated with the implicative inside collect still lets a person cannot ignore beauty. And the importance of the history of ancient Japanese is the eating habits of inherited a dutifully. Therefore, cooking out of the food is as natural scenery, a bunch of flowers to adorn the life of people. 我是用电脑翻译的

太简单的意思。非常常见的口语。

The excel in low density oil-well cement main solution oil field low pressure, the low seepage, easy to leak the lost circulation question which in the stratum well cementation appears. In the low pressure, the low seepage, easy to leak the stratum well drilling, the well cementation, the oil well logging and so on each kind of downhole operation, the driving fluid leaks into under the differential pressure function to the stratum phenomenon is a lost circulation. Because uses the excel in low density oil-well cement well cementation to be possible to solve in the well cementation the cement mortar head to be excessively high effectively, the cement mortar permeating oil layer, the pollution which creates to the oil layer. domestic and foreign are many to the excel in low density oil well cement mortar system research, concentrates, in the admixture and reduces the overall performance research which on the material carries on, to mainly has the compressive strength cement parent metal research to be very actually rare in the literature. This article in view of Daqing Hairlar area low pressure, the low seepage, easy to leak the stratum, the development excel in low density oil-well cement parent metal research and the cement performance evaluation. the paper according to the Daqing Oil Field well cementation need, in studies in the domestic and foreign existing excel in low density oil well cement mortar system foundation, increased to the cement parent metal research, the excel in low density oil-well cement aging performance study, causes this cement to mix from the oil field scene mixes the well cementation to transfer by the specialized cement Manufacturer carries on possibly produces into. the paper has studied in the temperature for 45℃ the condition, the low pressure, the low seepage, easy to leak the excel in low density oil-well cement configuration plan which the stratum well cementation needs, use close technologies and so on stack theory, nucleus theory, inspected the cement parent metal, to reduce the material, the cement admixture three aspects to the excel in low density oil-well cement performance influence, conducted the indoor research to this system. the findings indicated that through to the cement parent metal research as well as to reduces the material and the admixture carries on the optimization, compounds the excel in low density oil-well cement can satisfy Daqing Hairlar area well cementation request. This cement configuration's cement mortar has the early strength high, thick time being suitable, the mobility and the changing performance is good, the cement mortar subsidence stability good characteristic, can meet the stratum well cementation needs. This cement in the Daqing Hairlar oil field sub-area well cementation more than 230 mouths, the well cementation quality is qualified. key word: Oil-well cement cement parent metal low temperature low density compressive strength changing performance