水注

This paper analyzes that the main reason of low injectivity of water injection wells is that the Sr 2+ in formation water reacts with the SO 4 2- in the Yellow River water to produce precipitate of BaSO 4 when the Yellow River water mixes with formation water.

该文分析了胜坨油田注水井吸水能力降低的主要原因是黄河水与地层污水混注时，地层水中的Sr2＋、Ba2＋与黄河水中的SO2－4反应生成BaSO4、SrSO4沉淀。

In this review paper the methods and techniques for removing various precipitations plugged in raservoirs and for enhancing injectivity of water injection wells in Daqing Oil Fields are described briefly for their basic principles, characteristic features and proper uses.

大庆油田为确保稳油控水而进行的注水结构调整中使用了多种注水井解堵增注方法。

The Valley Heads Moraine prevented old rivers from flowing south, as they had before. This left the valleys filled with water. And this is how scientists say the Finger Lakes came to be.

冰碛谷阻碍了以前从南方流来的河流，这使得许多山谷注满了水，这就是科学家们所说的手指湖形成的过程。

Results show that floes' VC and D at the surface water were closely related to current velocity; and the peaks of VC lag those of the current velocity. The lag variation during ebb and flood tides is 10-30min and 30-50 min, respectively. Current velocity at 50 cm/s is a turning point of D vs. vertical average current velocity, before the point, Dm increases with current velocity, and decreases after the point. Similarly, VC at 75μl/L becomes a critical point in the surface water, below the point, D increases with VC, and above the point, D stabilizes.Δp is D dependent, larger floes have much lower Δp than smaller floes. Both D and Δp of floes affect ω. In the surface water during spring tide and neap tide, a power exponent relationship exists between Δp and D, and ω and D.

研究表明：①长江口徐六泾表层絮凝体体积浓度主要受水流流速影响，再悬浮现象明显，体积浓度过程线滞后流速过程线，落潮期间滞后10-30min，涨潮则滞后30-50min；②小于一定流速时絮凝体平均粒径随流速增大而增大，大于一定流速时絮凝体平均粒径则随流速增大而减小，徐六泾夫、小潮表层絮凝体在50cm/s的垂线平均流速时出现平均粒径与垂线平均流速关系的转折；③徐六注大、小潮表层絮凝体平均粒径在体积浓度75μl/L时出现平均粒径与体积浓度关系的转折，体积浓度小于75μl/L时粒径随体积浓度增加而增大，超过75μl/L时粒径随体积浓度的增加变化不明显；④絮凝体有效密度由粒径大小控制，粒径大，有效密度小，反之亦然，粒径和有效密度共同决定絮凝体静水沉速，有效密度和沉速与平均粒径之间均存在良好的幂指数关系。

Hand wheel,lever and spanner driving and safety valve,pressure reducing valve,traps overleap this symbol.

注：1、手轮、手柄和扳手传动以及安全阀、减压阀、疏水阀省略本代号。

With the technics of purdah infusion to stem water , surface sinking of large area can be prevented.

采用帷幕注浆堵水工艺可防止大面积地表塌陷的发生。

Analysis of the characteristics of soft rock roadway, combined with practical application, designed to spray a new anchor shell supporting structure and proposed mechanism of interaction with the rock that anchors the shell surrounding rock and shotcrete support system as an entity, anchor-body system and the deep rock formation deep rock control system, housing system and the formation of shallow shallow rock rock control system, through the bolt will be deep and shallow rock together, sprayed on the rock-body system to play the role of three-dimensional constraints, bolting technology, including high water, quick-setting grouting material between two groups, roof anchoring resin full-length high-strength bolts and small-diameter prestressed anchor to strengthen support for the conservation and help the two longer anchoring resin bolting.

分析软岩巷道的特点，结合实际应用，设计了锚壳喷新型支护结构，并提出了与围岩相互作用机理，认为围岩与锚壳喷支护体系作为统一体，锚体系统与深部围岩形成深部围岩控制系统，壳体系统与浅部围岩形成浅部围岩控制系统，通过锚杆将深、浅部围岩共同作用，喷体系统对围岩起到三维约束作用，锚杆支护技术，包括高水速凝材料注浆加固两帮、顶板采用树脂全长锚固高强度锚杆和小孔径预应力锚索加强支护及两帮树脂加长锚固锚杆支护。

The temperature was measured rectally and through the stomach.

水池里注满了水，并且加入冰块，直到测量水温在37.4 F，而实验对象穿着飞行服或被裸体放入水中，并测量直肠和胃里的温度。

The basins were filled with water and ice was added until the water measured 37.4 f and the experimental subjects were either dressed in a flying suit or were placed in the water naked. the temperature was measured rectally and through the stomach.

水池里注满了水，并且加入冰块，直到测量水温在37.4 f，而实验对象穿着飞行服或被裸体放入水中，并测量直肠和胃里的温度。

All those three types of slurry have good performance, able to meet the cementing requirements.

这3种渗透性水泥浆体系的基本性能良好，能够达到注水泥施工的要求。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。