The water treatment chemicals investigated in this work include flocculating agent, germicide, corrosion inhibitor and scale inhibitor. The green properties of water treatment chemicals are determined according to pollution resulted from their uses in oil field and their production processes, while their treatment performences are done from the experimental effects in oil field. The evaluation results are given for flocculating agents, germicides, corrosion inhibitors and scale inhibitors used in Daqing Oil Field.

對(duì)于水處理劑產(chǎn)品，本文主要考慮產(chǎn)品的使用和生產(chǎn)過程對(duì)環(huán)境的污染性爱在线欧美，以確定產(chǎn)品的綠色屬性最新地址91；通過詳細(xì)調(diào)研亚洲性爱视频免费，給出了一些產(chǎn)品在使用過程中的處理性能，最終確立油田用水處理劑產(chǎn)品的綜合性能久久911，同時(shí)針對(duì)水處理劑中的四大類產(chǎn)品—絮凝劑日韩a无v码在线播放、殺菌劑、緩蝕劑和阻垢劑分類進(jìn)行了比較久玖玖视频在线播放，為油田用水處理劑產(chǎn)品的使用提供了較有說服力的數(shù)據(jù)4455vw在线视频，也為其它油田化學(xué)品的使用和評(píng)價(jià)提供了借鑒。

By synthesizing three amine types inhibitor,we separately put them into top coat and ground coatings measuring with Electrochemical Impedance test and Salt fog test,the conclusion:corrosion inhibiting coal tar-epoxy coatings have more corrosion resistance than coal tar-epoxy coatings.

在環(huán)氧煤瀝青的底漆和面漆中分別加入自行合成的胺類緩蝕劑R中国野外性农村xXxXHD、Y和Z后亚洲欧洲日韩黄片一区二区，采用交流阻抗和鹽霧實(shí)驗(yàn)等方法測(cè)試，結(jié)果表明日韩无码国产精品视频，涂層的耐蝕性能有較大提高91色狼播，涂層針孔電阻Rfp的值阻提高 2～ 3個(gè)數(shù)量級(jí)，并且涂層的物機(jī)性能不受影

In order to reduce the corrosion of acidic paint stripper to aeronautical metals and provide with better anti-corrosion additive for AIL4130, TC4, LY12, and 20(superscript #) steel, a series of inhibitors and their composite were investigated. Weight loss experiment, Tafel curves measurement and SEM observation were carried out for the above metals in the formic acid solution which was normally used in the paint stripper. The experimental results indicate that the optimizing composite inhibitor consists of sodium benzoate, 2-thiourea, hexamethylenetetramine, sodium laurylsulfonate and 1, 2, 3-benzotriazole.

為降低酸性脫漆劑對(duì)飛機(jī)金屬材料的腐蝕精品无码视频在线观看，以脫漆劑中經(jīng)常使用的甲酸水溶液為研究介質(zhì)男女配种，以AIL4130、TC4欧美性爱在线a片视频、LY12黄色视网站免费网址、20鋼等材料為研究對(duì)象，通過腐蝕失重法久草中文av在线、塔菲爾曲線測(cè)量和SEM觀察国产高清在线A免费视频观看_日韩特黄，篩選出對(duì)以上各金屬材料緩蝕效果較好的復(fù)配緩蝕劑體系，即苯甲酸鈉国产免费三级片视频、硫脲最新2021自拍自产视频、六次甲基四胺、十二烷基磺酸鈉金发白妞AV在线播放、苯并三氮唑等緩蝕劑的優(yōu)化組合精品视频9999。

In high humidity environment or a little water environment, this product has good corrosion and corrosion protection.

在濕度高的環(huán)境中或難免有少量水汽的環(huán)境中，本產(chǎn)品具有良好的銹蝕美女色色色网站、腐蝕保護(hù)作用国内精品视频一区二区。

This could be attributed to the following reasons: fined grain is benefit for the improvement of corrosion property, in which the homogeneous distribution of Al element was also good to improve corrosion performance.

此外，稀土改善耐腐蝕性能的原因可能是減少了有效陰極相Mg_17A1_12的數(shù)量和新相具有耐蝕性以及提高了合金的腐蝕電位日本大片黄色，而堿土元素則降低了合金的腐蝕電位人人漂人人操。

Carbon dioxide and hydrogen sulphide corrosion is the main corrosion during petroleum and gas mining.

CO2、H2S腐蝕是石油天然氣開采過程中的主要腐蝕問題黑人和黑人一级毛片。

In this paper, mechanism and influencing factors of hydrogen sulfide corrosion were discussed, and methods for controlling hydrogen sulfide corrosion were presented.

本文詳細(xì)地論述了硫化氫腐蝕的機(jī)理及影響因素日本屄视频，并闡述了控制硫化氫腐蝕的方法。

The stress corrosion cracking experiments were conducted using SUS 304 L stainless steel WOL samples in 3.0% NaOH solution by mass fraction at 280℃in order to study the anti-stress corrosion performance of PD-201 hydrogenator made of SUS 304 L stainless steel of purified terephthalic acidplant during alkaline washing without stopping production.

通過用SUS304L不銹鋼制作的楔形張開加載預(yù)裂紋試樣，在280℃国内日韩免费在线一级片、質(zhì)量分?jǐn)?shù)為3.0%的NaOH溶液的條件下進(jìn)行應(yīng)力腐蝕試驗(yàn)在线免费黄色视频。，以模擬對(duì)苯二甲酸裝置的加氫反應(yīng)器PD-201不停車堿洗工作過程中SUS304L不銹鋼在該介質(zhì)環(huán)境下的抗應(yīng)力腐蝕性能。

The results show that the naturally-aged 2195 alloy has the best intergranular and exfoliation corrosion resistance. The intergranular and exfoliation corrosion are accelerated with prolonging the increasing aging time at 160℃, which is in accord with the results of polarization tests in IGC solution.

結(jié)果表明： 2195合金在自然時(shí)效狀態(tài)下具有較好的抗晶間腐蝕和剝落腐蝕能力一级A片免观看，但隨著在160℃時(shí)效時(shí)間的延長(zhǎng)国产美女丝袜喷水，其晶間腐蝕與剝落腐蝕傾向逐漸增加；在剝落腐蝕溶液中進(jìn)行的極化曲線測(cè)試也表現(xiàn)出相同的趨勢(shì)AAA国产精品久久久免费。

From the angle of engineering application, this article analysed the corrosion characteristics and damage causes of the current structural used concrete in the region of Hangzhou gulf, on the basis of on-site survey of all the Marine concrete projects in that area. Taking HPC used in Marine as research objective, this article put great emphasis on the influence of the composition cementing material system to concrete performance, and make a preliminary probe into the action mechanism of the composite effects of various mineral materials in improving the performance of concrete by laser measuring size machine and EMPA. Through experiments, the article discussed how chloride ingression in concrete will be effected by such factors as exposure time, chloride binding, environment temperature, stress and cracks conditions; and also analysed the symptoms of these factors in the model of concrete service life prediction by conference to all related research reports both home and aboard. On the foundation of abovementioned research, this paper brought up an engineering model of service life prediction of marine concrete, which is based on chloride-induced corrosion.

本文從工程應(yīng)用的角度国产综合精品一区二区，在對(duì)杭州灣地區(qū)既有海工混凝土工程作實(shí)地調(diào)研的基礎(chǔ)上，研究分析杭州灣地區(qū)既有海工混凝土結(jié)構(gòu)的腐蝕特點(diǎn)和破壞原因美女扒开腿高潮喷水网站；以海工高性能混凝土為研究對(duì)象玖玖玖在线有精品6，著重研究復(fù)合膠凝材料體系對(duì)混凝土性能的影響，并應(yīng)用激光粒度儀米奇色影院、EMPA等分析手段无码无毒黄色网站，就復(fù)合膠凝材料的作用機(jī)理進(jìn)行初步探討；試驗(yàn)研究混凝土暴露時(shí)間在线视频福利资源、膠凝材料對(duì)氯離子的吸附黄片在线高清免费观看、環(huán)境溫度、應(yīng)力和裂縫狀態(tài)等因素對(duì)混凝土中氯離子遷移運(yùn)動(dòng)的影響强奸乱伦无码AV，并結(jié)合國(guó)內(nèi)外相關(guān)研究報(bào)導(dǎo)日韩手机色自拍图片小说，探討這些因素在混凝土使用壽命預(yù)測(cè)模型中的表征；在上述研究基礎(chǔ)上AAA性爱片，提出以氯離子侵蝕為基礎(chǔ)的海工混凝土使用壽命預(yù)測(cè)的工程應(yīng)用模型中国一级黄色尤物网站。