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phreatic adj.1.井的,鑿井取得的。2.【地質學;地理學】地下...

phren-

For dagang oilfield , cements mainly is calcite , other and fills are mud , silicate , pyrite and organic matter , at least there are two or three stages . ( 4 ) . after studying of cement stratagraphy , cementation - dissolution diagenesis is divided into four zones : phreatic , vadose , deep mixing and deep convection zones 從大港探區的實例出發,認為充填物類型除方解石外,泥質充填也較普遍,同時還有硅質、黃鐵礦、有機質等多種充填類型,充填期次至少2一3期; ( 4 )膠結物地層學研究,將膠結溶蝕成巖作用劃分出四個帶:滲流帶、潛流帶、深部混合帶和深部對流帶。

The oil field exploiting impacts on water resources are analyzed in this paper , points out that the current situation of water pollution as follow : the surface water have greatly polluted , the quality of the phreatic water is going worsen , and the deep groundwater quality is not be good , and make out the main pollutants , then utilizes the artificial neural network analyses the collected water quality information data and predicts the water quality in the daqing area , makes a reasonable assessment , which will present theoretic basis for water resources protection and pollutant prevention in oil field 摘要首先分析了油田開采對大慶地區水資源的影響,指出水污染現狀:地表水嚴重污染,潛水水質趨于惡化,深層地下水水質不佳,同時指出水污染的主要污染物,并運用人工神經網絡度對長期收集的水質監測資料進行了分析和預測,對該區水資源水質做出了比較合乎實際的評價,為油田水資源的保護和污染防治工作提供了理論依據。

The phreatic groundwater in the diluvial fan in front of the helan mountain is mainly recharged by precipitation and the lateral flow from the helan mountain ; the phreatic groundwater both in the diluvial fan of the qingtongxia gorge and in the fluvial plain is mainly recharged by the influent seepage of irrigation water from the yellow river 賀蘭山洪積扇單一潛水主要接受山區側向徑流及大氣降水補給;青銅峽洪積扇單一潛水及沖湖積平原上覆潛水,主要接受黃河灌溉水的入滲補給。

Therefore , on the basis of brief summarization of geography , society and economy of yin - chuan basin , the hydrogeological condition was stated and analyzed , the groundwater resource was assessed using balancing method . results showed the quality of phreatic water in yin - chuan basin is bad and can be easily contaminated , it is not suitable for water supply of industry and living 因此本文在對銀川盆地的自然地理和社會經濟概況進行概述的基礎上,分析、論述了盆地的水文地質條件,采用均衡法對盆地的地下水資源進行了評價,并計算了天然補給資源量、可開采資源量。

On this basis , it also studies the main recharge of groundwater , discusses the relationships between river and groundwater , shallow confined water and phreatic water , northern karst water and quaternary phreatic water as well , and get the recharge percentage which river recharges to phreatic water 在此基礎上,研究了地下水的補給來源,探討了河水與地下水、淺層承壓水與潛水、北部巖溶水與山前第四紀潛水之間的相互關系,確定了河水對潛水的補給比例。

In the third chapter , the paper describes the conceptual model of research area : in plane , the range and boundary of the model accords with that of tong - pu - he karst - groundwater sub - system ; in vertical , the model ranges from the bottom of cambrian to the phreatic surface 第三章,確定研究區概念模型如下:在平面上,模型范圍與銅蒲合巖溶水系統范圍一致。銅蒲合巖溶水系統的邊界就是該模型的邊界。在垂向上,上至潛水面,下至寒武系底面。

Among them , phreatic , vadose and in the middle of convection zones undergone dissolution ( especially in vadose zone ) . the mixing and upper convection zones undergone cementation . the lower convection zone remained unaltered 其中滲流、潛流和深部對流帶中部以溶蝕作用為主(潛流帶最強烈) ,混合帶和對流帶上部以膠結作用為主,對流帶下部成巖作用不活躍。

Because the quality of the phreatic aquifer and the first confined aquifer is not good , the primary exploitation layers of the research area are the second , the third and the forth confined aquifers 由于潛水、第承壓水水質較差,開采量很少,目前該區主要開采第、 、承壓含水層中的地下水。

Relationship between water surface evaporation and phreatic water evaporation when phreatic water buried depth is zero for different soil in tarim river basin 潛水埋深為零時塔里木盆地不同土質潛水蒸發與水面蒸發關系分析

Hydrogeological feature as well as development and utilization of phreatic water in alluvial - lacustrine deposits of ding bian - jingbian plain , northern shanxi province 陜北定靖平原沖湖積層潛水水文地質特征及開發利用

The over - exploited deep confined water , which is replenished by surface water and phreatic water , is also polluted 由于大規模開采,深層承壓水受到地表水和淺層地下水的補給,水質也有污染。

The upper boundary of model is the phreatic surface having rainfall , river and reservoir recharge and spring drainage 模型頂面是有降雨和河流、水庫入滲補給,以及泉水排泄的潛水面邊界。

Phreatic evaporation characteristics and calculation methods with the shallow water table in the saline soil region 高地下水位條件下鹽漬土區潛水蒸發特性及計算方法

Variation of phreatic evaporation and its calculation method in tarim river basin in xingjiang region 塔里木盆地潛水蒸發規律與計算方法研究

Analysis and calculation of phreatic water evaporation in hilly land of mid - south shandong province 魯中南山丘區潛水蒸發量計算分析

Effect of the sand layer position on the phreatic evaporation in the layered soil profile 層狀土壤中砂層層位對潛水蒸發的影響

Observation experiment and analysis calculation on phreatic water evaporation coefficient 潛水蒸發系數的觀測實驗與分析計算

Characteristics and calculation model of phreatic evaporation of sand - layered soil 夾砂層狀土壤潛水蒸發特性及計算模型

Analysis of phreatic line monitoring data in auxiliary dam of biliuhe reservoir 碧流河水庫一副壩浸潤線監測資料分析