回注污水

According the features of mid-slight strong sensitivity to velocity,mid-extremely strong sensitivity to water and property of non-compatibility of water-injected, back injected sullage and reservoirs of Nadu Formation and Baigang Formation in Baise Oil Field ,static expansion- protect experiment of multiple clay stabilizers and core fluid .

针对百色油田的那读组、百岗组存在着中等偏强的速敏性、中等-极强的水敏性、注入水及回注污水与储层不配伍的特点，对多种粘土稳定剂进行粘土防膨静态试验和岩芯流动试验，筛选出适合百色油田注水用最佳粘土稳定剂配方为0.5%JS-7+0.1%BF-901+1%NH_4Cl，用该配方处理后的6块岩芯，注水40～50PV后渗透率保持率为80.23%～132.14%，而且岩芯经粘土稳定剂处理后稳定性好且耐水冲刷。

So produced water how to reinject no damage into reservoir, is a very meaningful studying.

因此怎样实现污水的无伤害回注，是一个极有意义的研究课题。

In the light of serious corrosion of tubing and casing in Jianghan oil field at present,three kinds of material(N80,J55 and P110) was selected as objects to study the four kinds of flow media such as mud fluid normal acidification fluid,reinjected waste water and injected clear water used in the key stages of the development in oil field in the laboratory.

针对江汉油田油套管腐蚀比较严重的现状，实验选择3种材质(N80、J55、P110)作为研究对象，对油田开发中的几个关键阶段所用到的4种流动介质，如钻井泥浆液、常用酸化液、回注污水、注入清水，综合地进行了油、套管腐蚀室内实验研究。

The technology for waste mud reinjected into high-permeability reservoir is applied in Linnan Oil Field, which reduces the pollution of solid mud for environment. The field test in Xia52-414 Well shows that the injection pressure can be kept to 11 million Pascal when the concentration of sludge in waste mud is ten percent.

引 言 胜利油田有限公司临盘采油厂临南油田属中低渗透油藏，注入水为回注污水(pH值为6.5，总矿化度为40511～55149 mg/L)，注采系统腐蚀、结垢严重，为解决此矛盾，实施了改性水工程，但在取得防腐、防垢较好效果的同时，所产生的固体废物则急剧增加。

Reinjection is applied for sewage disposal in Daniudi gasfield. Sewage contains some sulfate ion. The main ion in formation water with high salinity includes K, Na, Ca, Mg and Ba. So reinjected sewage combining with original formation water will generate scaling, And the scaling type is mainly sulfate scale.

中文摘要：大牛地气田对污水处理采用回注方法，污水中含有一定量的硫酸根离子，而地层水中也有很高的矿化度，主要离子为钾、钠、钙、镁、钡，因此回注污水与原地层水相混，会产生结垢现象，结垢类型主要为硫酸盐垢。

The plant is suitable for treating oily water in situ and for reinjecting the treated oily water into formation in small block oilfield i n progressive development in China.

该装置对我国在小断块油田滚动开发中用于污水就地处理和回注是可行的，可节约开发成本，提高经济效益。

So, the paper brings out a feed forward cascade PID control method in order to optimize control process according to technological flow and control theory. It promotes the system stability and decreases the cost of the water process.

通过分析处理工艺流程及生产控制原理提出了前馈串级控制的控制方法，利用该控制方法对控制过程优化，提高了系统适应能力，降低了污水处理加药费用，同时保证了回注油田污水的质量。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。