This paper analyzes the defects in acid sensitivity standards from the rock/acid reaction mechanism and experimental methods and points out existing results from acid sensitivity evaluations cannot be as the judged bases for performing acid treatment in this reservoir.

從酸-巖反應(yīng)機(jī)理和試驗(yàn)方法兩方面分析了酸敏評(píng)價(jià)標(biāo)準(zhǔn)存在的問題，指出現(xiàn)行的酸敏評(píng)價(jià)試驗(yàn)結(jié)果不能作為儲(chǔ)集層能否進(jìn)行酸化處理的判定依據(jù)A片在线视频观看。

We have used GC to follow up the formation of epoxy acid and established the acidify condition; we have done series of parallel experiments to better the pivotal condensation reaction between acid and amine; In the cyclization step, we use cheap and available reagent-Lithium amide , rather than expensive LiHMDS, to proceed the reaction; and at last, we introduced green reagent-ozone to clear the phenyl group of nitrogen to avoid using heavy metal reagent-CAN. The total yield for this method is 29.8%.

通過GC監(jiān)測(cè)人人摸人人艹人人，確定環(huán)氧酸的最佳酸化條件99视频色色；對(duì)關(guān)鍵的酸和胺的縮合步驟黄色国产区视频，平行試驗(yàn)了多種條件亚洲欧美卡通图区丝袜；在環(huán)合一步，用價(jià)廉易得的氨基鋰及催化量的HMDS代替昂貴的LiHMDS進(jìn)行反應(yīng),国产男靠女免费视频网站；氮上苯基的脫除采用臭氧国产老太性交，避免了重金屬試劑-硝酸鈰銨的使用，總收率為29.8％国产调教免费视频免费专区。

The results showed that it is more difficult to demulsify for the emulsion of reacted acid and crude oil.

通過模擬酸化工藝，對(duì)樁西采油廠長(zhǎng)堤線国产午夜三级片免费观看、混合線和樁一線的原油在殘酸存在前后乳狀液破乳脫水的對(duì)比實(shí)驗(yàn)日韩激情无码一级毛片久久，研究了殘酸返排液對(duì)乳狀液破乳的影響。

Soil ecological degradation can be defined as the process and phenomenon of a series of deterioration of soil ecological environment such as structural destruction and functional recession of soil ecosystem, decrease of soil biodiversity and productivity, dcsertification, drought, hardness, acidification and salination of soils, deficit and unbalance of soil nutrients, and loss of soil and water, resulting from human activities and adverse natural environmental conditions.

土壤生態(tài)退化是指由于人類活動(dòng)及惡劣的自然環(huán)境條件作用或二者共同作用下造成的土壤生態(tài)系統(tǒng)結(jié)構(gòu)破壞亚洲国产aⅴ精品一区不卡、系統(tǒng)功能衰退午夜理伦电影在线不卡717、土壤生物多樣性減少、土壤生產(chǎn)力下降以及土壤荒漠化性爱A片、干旱化中文字幕无码永久无线无码、板結(jié)化、酸化禁16无码黄片、鹽堿化和養(yǎng)分虧缺與失衡等一系列土壤生態(tài)環(huán)境惡化的過程和現(xiàn)象日韩精品牲交一区。

In this article, three representative oil and fat resourse (edible raw oil, unedible linseed oil and waste oil and fat) were used to study the fatty acid methyl ester preparation technology, and the products from different technologies were compared and analysed. For plant oil, ester exchange process was performed immediately after simple decolorating and alkali refining pretreatment.

對(duì)于植物油脂，采用簡(jiǎn)單的脫色拍拍欧美性爱、堿煉預(yù)處理后在线视频cao，直接進(jìn)行酯交換的工藝；對(duì)于廢油脂欧美性影院，由于其成分變質(zhì)較嚴(yán)重一级片在线观看电影，預(yù)處理也顯得相對(duì)復(fù)雜，采用了先預(yù)酯化再酯交換的工藝和先皂化酸化后再酯化的兩種工藝网站最国产2020最新。

Acidizing and fracturing are performed on perforated Berea sandstone targets after perforating tests in labs.

在實(shí)驗(yàn)室條件下對(duì)貝雷砂巖進(jìn)行射孔試驗(yàn)美女视频黄的全免费男人，并分別對(duì)射孔后的靶體進(jìn)行酸化、壓裂工藝處理18禁三级片网免费看，利用核磁共振和工業(yè)X-CT技術(shù)分別對(duì)未射孔的靶體明星福利第九页、射孔后的靶體、射孔后酸化的靶體、射孔后壓裂的靶體進(jìn)行測(cè)試国产在线国偷精品产拍。

For the two digestions of material proportion 83∶17 and 62∶38）with pH adjustment to 7.2 at the acidification stage, the stable pHs for methane production were 7.4~8.0, total VFA concentrations were 500~900 mg·L-1, propionic acid concentrations were 100~550 mg·L-1, and no ethanol production was detected.

實(shí)驗(yàn)結(jié)果表明WWAVA一片，與單獨(dú)利用食物垃圾以及未調(diào)節(jié)酸化階段pH的厭氧消化相比，調(diào)節(jié)酸化階段pH=7.2的食物垃圾與廢紙聯(lián)合厭氧消化能夠避免揮發(fā)性脂肪酸抑制黄网站啊啊啊在线免费、保證消化穩(wěn)定性并提高消化性能黄色小电影在线资源。

The results show that bioleached sludge at pH 3.5～1.95 can be used successfully as inoculums for the next batch bioleaching trial with the similar bioleaching efficiency,by which pH of the treated sludge can be reduced to less than 2 within 5 days for hydraulic residence time of bioleaching.

結(jié)果表明，用淋濾過程中pH3.5～1.95的生物酸化污泥作菌種找小姐放黄片手机播放播放，污泥的pH值都能夠下降到2.0以下免费線上看国产黄色网站，而且不同pH值的生物酸化污泥作菌種的淋濾效果差異并不顯著，說明淋濾過程中pH在3.5以下的污泥都可以作為菌種两男一女激情毛片视频，接入到下一批次待處理的污泥中進(jìn)行生物淋濾欧美大片A片在线观看免费。

The object of this study is to prepare of soy oleic acid from the acidic oil , which was made from soap stock by acidification with sulfur acid, followed by hydrolysis, distillation and emulsification separation.

本研究利用皂腳酸化得到的酸化油進(jìn)行水解，得到粗制脂肪酸www欧美性交，然后通過蒸餾2017人人摸、乳化分離得到所需的大豆油酸產(chǎn)品。

The object of this study is to prepare of soy oleic acid from the acidic oil , which was made from soap stock by acidification with sulfur acid, followed by hydrolysis, distillation and emulsification separation.

以菜籽油或酸化油為原料国产精品91在线，進(jìn)行了菜籽油及酸化油合成生物柴油工藝中試91精品麻豆；得出了較理想的合成工藝條件；利用氣相色譜及化學(xué)分析法国产精品视频2021，對(duì)生物柴油的燃燒特性進(jìn)行了分析在线超碰。