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1)  class II reservoirs
二类油层
1.
Based on the analysis of dynamic characteristics in field tests area and commercialized production areas for polymer injection in class II reservoirs, some problems about polymer flooding in class II reservoirs can be found, such as low injectivity, low liquids productivity, short period with low water cut and serious planar conflicts.
通过对已开展的二类油层注聚试验区和工业化区块的动态反映特征分析,指出二类油层在聚驱开发过程中存在着注入能力差、产液能力低、见效含水低值期短、聚驱平面矛盾突出等问题。
2.
How to determine reasonable injection-production well pattern and how to optimize well pattern in class II reservoirs during polymer flooding are the problems needed to be solved at right.
喇嘛甸油田将直接面临上返的问题,但二类油层注聚开发合理的注采井距、井网如何优化等都是目前急需解决的问题。
3.
The development technology of polymer flooding in major reservoirs has become mature,however,it is hard to grasp the effectiveness regularity of the technology in class II reservoirs due to differences between major reservoirs and class II reservoirs.
大庆油田主力油层聚合物驱开发技术已经成熟,二类油层聚合物驱与主力油层聚合物驱相比有很大的差别,二类油层聚合物驱见效规律也难以把握。
2)  sub-layers
二类油层
1.
Optimization of the injection parameters of sub-layers polymer flooding in Daqing Oil Field;
大庆油田二类油层聚合物驱注入参数的优选
2.
Properties and mechanism of high mass concentration polymer solution in sub-layers
二类油层高质量浓度聚合物溶液性能及机理
3.
The heterogeneity of Sub-layers is grave.
二类油层非均质性严重,这一特性决定了二类油层注聚过程中不可避免同一单元内存在水、聚两驱共存现象,使聚驱潜力难以得到发挥。
3)  second class reservoir
二类油层
1.
Through cases of the representative block,usage status and flooding status of the second class reservoir can be analyzed with the completion logging data in the block.
通过以典型区块为实例,应用诸多产出、注入时间推移测井资料,分析判断二类油层动用状况;利用该区块内的完井电测资料,分析二类油层水淹状况;在此基础上,依据油藏工程理论,将各类测井资料与其它动、静态资料相结合,定量分析二类油层采出程度,从而确定二类油层宏观剩余油潜力。
4)  ClassⅡoil reservoir
二类油层
1.
According to the geologic features of ClassⅡoil reservoir in North Saertu development area, this paper has made careful study on the development effect and economic profit of ASP flooding, so as to find the favorable well spacing, combination of strata series and ASP development optimization method.
针对萨北开发区二类油层的地质特点,为探索适合二类油层三元复合驱的井网井距、层系组合方法,优化二类油层进行三元复合驱的开发方式,从开发效果、经济效益等方面进行了详细的论证,总结出以聚驱控制程度为中心,对二类油层采取限定对象、缩小井距、细分层系的开发方式。
5)  medium and low permeable reservoirs
二三类油层
6)  flooding upwards in thin and poor layers
二类油层上返
补充资料:多氯二苯并二噁英类
分子式:
CAS号:

性质:(1)多氯二苯并二噁英类(polychlorinated dibenzo-p-dioxins;PCDD)的简称。又称二苯基二噁英(diphenylene dioxins)。中间环5、10两位置为氧原子,其余1~4,6~9各位置可被卤素原子或有机基团取代。被氯原子取代时,随氯原子数(1~8个)的多少,可形成8个同系物,75个异构体(同族体)。性质稳定,不易分解。其毒性与氯原子取代的位置密切相关,有4个氯原子的二噁英是有毒的(共22个),其中四氯二苯并二噁英(TCDD)毒性最强。二噁英的前驱物是氯联苯、氯苯、氯苯酚等含氯芳香烃化合物,在燃烧过程中形成二噁英。它在自然界能天然生成,人为来源主要是废弃物的焚烧排放物,如城市垃圾、工业废物、医院废物、防腐剂处理过的木材、有机制品、电容器和绝缘器中绝缘液、旧轮胎作能源等的焚烧;工业生产的排放源有造纸厂漂白废液、生产氯的石墨电极渣、催化剂高温氯化活化、钢铁冶炼和废金属回收等。在环境中的分布,地表土中含量最多,植物和河湖沉积物中其次,大气飞灰和地表水中较少。动物实验证实二噁英有致癌致畸作用,列为人类可疑致癌物,其毒性危害程度远超过有机氯农药和多氯联苯。(2)特指四氯二苯异二噁英。

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