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.

通過對已開展的二類油層注聚試驗區(qū)和工業(yè)化區(qū)塊的動態(tài)反映特征分析成年人网站在线视频，指出二類油層在聚驅(qū)開發(fā)過程中存在著注入能力差想看一级片在哪里看、產(chǎn)液能力低、見效含水低值期短欧美又乱又伦观看、聚驅(qū)平面矛盾突出等問題国产在线黄色小。

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.

該文分析了勝坨油田注水井吸水能力降低的主要原因是黃河水與地層污水混注時，地層水中的Sr2＋、Ba2＋與黃河水中的SO2－4反應(yīng)生成BaSO4亚洲综合在线视频小说、SrSO4沉淀日韩一区二区高清。

There exist strong negative correlation between crystal size and crystallinity of illite in altered mylonite of low strain and low water/rocks ratios, and positive correlation between crystal size and crystallinity of chlorite in altered untramylonite of high strain and high water/rocks ratios.

在巖石應(yīng)變較弱、水／巖比較小的糜棱巖帶一区二区美女又爽又粉嫩，伊利石的平均結(jié)晶大小與結(jié)晶度成負(fù)相關(guān)国产午夜福利电影，而在巖石應(yīng)變較強(qiáng)、水／巖比較大的超糜棱巖帶韩日一级黄色网站，綠泥石的平均結(jié)晶大小與結(jié)晶度成正相關(guān)伊人久久影院一区二区三区。

The" high water","middle water",and "Low water" in some mangrove literature should be " high water spring tide"," high water middle tide", and "high water neap tide" in tidology terminolo-gy.

潮汐和浸淹形成的環(huán)境梯度控制了紅樹林在潮灘上的總體分布和群落結(jié)構(gòu)，是紅樹林能量特征最重要的組成部分「www..com国产精品一区二，成為紅樹林生態(tài)學(xué)研究的重要內(nèi)容日韩精品黄在线看。

This paper performs an numerical modelling on constant water flooding of water injection well arrays and production well arrays in low permeable reservoirs and analyses the factors effecting the recovery of water flooding in low permeable reservoirs, including pore structure of porous medium, oil water relative permeability curve, starting...

通過對低滲透油藏中注水井排和采油井排的定壓水驅(qū)進(jìn)行數(shù)值模擬，分析了低滲透油藏水驅(qū)采收率的影響因素欧美性爱人人操人人射，包括多孔介質(zhì)孔隙結(jié)構(gòu)精品精油按摩毛片、油水相對滲透率曲線黄色视频在线免费观看操使劲不要高潮、啟動壓力梯度国产久一黄色网站、注入速度和注采井距。

2Nd, hydrology condition this project is situated at north Yangtze River, its hydrologic remime is as follows: Yangtze River history maximum high-water: 45.22m (in 1998) Yangtze River history most low water level: 30.37m Yangtze River mean water level: 35.745m Yangtze River average sand content: 1.16kg/m3 the subsoil water level (water volume is rich, water quality good): after 0.8m the Three Gorges Dam completes, the Yangtze River Shashi hydrologic station's water level, will rise 1-2 meters equally in the waterless season, the ample flow season will drop above equally 1-2 meters, both are advantageous to the flood prevention, and can guarantee that 3000 tonner barges year to year normally navigate and anchor.

水文條件該項目地處長江北部欧美男女性爱视频网站，其水文情況如下：長江歷史最高水位：45.22m（1998年）長江歷史最低水位：30.37m 長江平均水位：35.745m 長江平均含砂量：1.16kg/m3 地下水位：0.8m 三峽大壩建成后国产吧在线视频，長江沙市水文站的水位，在枯水季節(jié)將平均上升1—2米99日韩一区二区搜索，豐水季節(jié)將平均下降1—2米以上在线看人成视频人成视频免费看，既有利于防洪，又能保證3000噸級駁船的常年正常航行和蛍ww.xx性xx？吭谙吖劭从谰妹夥丫贰?/p>

Numerical experimental results showed that the perimeter air deflectable deposited burner could ensure the flame stability to satisfy combustion requirements under low load and can prevent spout fire carrying, low concentration of particle matters around the water-wall ensures the water-wall to be in oxidation atmosphere to solve problems of high temperature erosion and slagging, and particle matters separated from main spray caused by deflectable deposited perimeter air plays a significant role in low NO combustion control.

數(shù)值試驗結(jié)果表明，偏置周界風(fēng)燃燒器在保證煤粉氣流著火穩(wěn)定性以滿足低負(fù)荷燃燒要求的同時在线观看国产福利，具備較強(qiáng)的防止噴口帶火能力亚洲国产很多精品一区二区三区；爐內(nèi)水冷壁附近顆粒物質(zhì)量分?jǐn)?shù)相對較小，從而能保證較高的氧化性氛圍以解決水冷壁高溫腐蝕色综合天天综合网、結(jié)渣等問題曰本A片天天看片天天爽爽；偏置周界風(fēng)所引起的爐內(nèi)氣固兩相偏析在低NO燃燒控制方面具有重要意義。

The quality of central water supply in town is relatively good the qualified rate of central water supply in village and its school and kindergarten drinking water are still low as the free chlorine residuals in the water could not meet the standard which was the main reason of excessing microorganism of drinking water.

城鎮(zhèn)集中式供水水質(zhì)較好手机看片日韩精品视频在线；農(nóng)村供水站及其學(xué)校幼兒園飲用水合格率仍偏低999国产一区二区三区，其中游離余氯達(dá)不到衛(wèi)生要求，是飲用水微生物指標(biāo)超標(biāo)的主要原因在线看片免费人成视频久网不卡。

The result shows that the erosion presents as incision when the riverbed is relative narrow and deep; To the low-water branching reach with strong boundary conditions where the riverbed is wide and shallow, the scour and deposit variation characteristics mainly presents as erosion and deposition adjustment of river island, height deviation of thalweg in the inlets and the adjustment of split ratio after impoundment To the low-water branching reach where the riverbed is wide and shallow and the lateral boundary conditions are weak, the scour and deposit variation characteristics is not restricted to the adjustment of split ratio, and the pattern of the braided reach may even be changed.

結(jié)果表明：當(dāng)河段相對窄深時中文精品久久99久久久，河段沖刷主要為下切；當(dāng)河段為相對寬淺的低水分汊河段且河岸約束較強(qiáng)時，蓄水以后的沖淤變化主要體現(xiàn)為江心洲灘的沖淤調(diào)整又插又爽的视频免费、汊道深泓高程差的沖淤調(diào)整欧美激情A片在线，并引起主支汊分流比的調(diào)整；當(dāng)河段為較為寬淺的低水分汊河段且河岸約束相對較弱時黑人又粗又大一级毛片，則沖刷調(diào)整不僅限于分流比的調(diào)整美女裸体视频A级毛片，甚至?xí)?dǎo)致大的分汊格局的調(diào)整。

Trail has been in the car division between the large half-day I walk in the six-bridge for a short complement and finishing, are somewhat ill-prepared, in the four bridge after almost no chance to get on the way to the mountain spring water, In the following trip can only be used to save the only two bottles of mineral water, and good in more than 4,000 meters above sea level the temperature is very low, low water consumption.

已在車師古道間行走了大半日的我黄色视频,免费黄色视频，在六道橋進(jìn)行了短暫的補(bǔ)充和修整一二三区公司在线观看公司，感到有些準(zhǔn)備不足的是，在四道橋過后一区二区视频日韩免费，一路之上幾乎沒有機(jī)會取到山間的泉水欧美性人交大片，只能在以下的行程中節(jié)省地使用僅有的兩瓶礦泉水，好在4000多米的海拔氣溫很低欧美视频一区二区三区，水分消耗不多日日夜夜2017。