油藏高含水期注采优化调整及挖潜

该油藏构造复杂,断块小、舍油层位多。针对在注水开发存在注采井距小、压降快、注水见水快、水驱采收率低、注采井网调整余地小的状况,制定了先注后采、以吸水指示曲线分层测试资料为指导的周期注水、逐层注水等注水开发政策,有效控制含水上升速度,延长稳产期,提高水驱油效率。     

利用特高含水期细分调整有效改善水驱开发效果

油田已进入特高含水期开发阶段,注入水易沿着已形成的注水通道在高渗透层突进。为控制含水上升速度,减缓产量递减,最大限度挖掘剩余油,需进行细分调整来改善注水效果。某水驱区块通过近几年加大细分调整力度,有效改善了注水井区层间吸水剖面,油层动用程度有所增加。     

高效自适应纳米乳液调驱技术在东北油田的应用

油田开发过程中高含水一直制约着油田高效开发,无效注水、高含水采出液水处理成本的增加大幅度提升吨油成本.由于油田高含水,为降低油田开发成本实施大面积关停,引进膨胀纳米乳液调驱新技术实施降水增油,基于分散架桥二次聚并机理,强化注水、调剖调驱,结合调驱技术室内实验及矿场实验,对实施技术进行优化,实现有效封堵水窜大孔道,并取得...     

吸水剖面资料在低渗透油藏开发中的应用

在低渗透性油藏的注水开发过程中,由于存在层间、层内、平面的三大矛盾,以及裂缝的存在,注入水主要沿着渗透性较好的方向单向突进,而相对低渗透层则吸水量较少或不吸水,对应油井变化是含水上升快和难以见到注水效果两极差异。利用吸水剖面测试技术,结合油水井动、静态资料可以从纵向上和横向上了解油层的吸水状况、水驱方向和注水波及特征。结合相关资料能对油水井作出及时的调整措施,达到提高注水效率和区块稳产的目的。     

鄂尔多斯盆地顾屯油区高含水原因剖析及治理技术

目前顾屯油区长6储层采油井生产周期短、含水上升快、采出程度低等突出性的问题,严重制约着油田的勘探开发以及采收率的提高.基于此,针对研究区实际状况应用相渗特征和水驱曲线对研究区潜力进行了论证,对其高含水原因详细分析,以及对应综合治理技术的探讨.结果表明,研究区高含水特征主要分为油水混储、油层水淹、裂缝开启、正常基质高含水等四大类,主要综合治理方法为改善注水技术、三次采油技术等.     

深部调剖技术在胜二区沙二3的研究与应用

正韵律油藏在注水开发过程中自然递减幅度大,含水上升较快。针对这一问题,提出利用水膨体堵剂、分段塞注入工艺在此类油藏中实施大剂量深部调剖。通过对胜二区沙二3单元实施深部调剖试验的做法进行总结,对调剖效果进行分析,认为该项技术对控制稠油油藏的自然递减、提高最终采收率具有可行性。     

深部调剖技术在胜二区沙二3的研究与应用

正韵律油藏在注水开发过程中自然递减幅度大，含水上升较快。针对这一问题，提出利用水膨体堵剂、分段塞注入工艺在此类油藏中实施大剂量深部调剖。通过对胜二区沙二3单元实施深部调剖试验的做法进行总结，对调剖效果进行分析，认为该项技术对控制稠油油藏的自然递减、提高最终采收率具有可行性。     

暂堵酸化技术的研究与应用

分析安塞油田酸化措施导致油井综合含水上升原因,根据室内实验和暂堵剂性能评价,确定了适宜安塞油田酸化使用的酸化暂堵剂,确立了安塞油田暂堵酸化工艺技术。在安塞油田现场试验7口井。措施成功率较高,控制油井综合含水上升效果明显。     

可控硅的记忆效应在闭环控制系统设计中的妙用

在通用技术课程实验演示中,闭环控制系统的实验案例选择的是闭环水位控制系统。它需要完成的目标是,当无水或水位低于最低水位探测点时,注水电机开关闭合,向内注水,一直到水位上升到最高水位探测点时,注水电机开关断开,停止注水。当水位再降低,只要不低于最低水位探测点,注水电机均不工作,从而完成系统的闭环水位控制工作。在教材或参考资料上,实     

普通稠油水驱后转CO_2吞吐实验研究

由于普通稠油油藏的原油粘度高、流度比大,加之油藏非均质性的影响,其注水开发效果较差,大部分原油到含水高于90%时仍未开采出来。因此,有必要在水驱末期转换开发方式,进一步提高采出程度。针对以上问题,采用室内实验方法研究了普通稠油油藏水驱开发后期转CO2吞吐的可行性,并根据实验结果,分析了影响CO2吞吐效果的各项因素。分析认为,CO2吞吐的周期注气量、注气速度、焖井时间和生产过程中的井底流压及降压方式都是影响CO2吞吐效果的重要因素。因此,合理控制各注气参数可以得到较好的CO2吞吐效果。该研究可为该类型油藏在接替技术方面提供参考。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.