本文選題：吡啶類(lèi)季銨鹽　切入點(diǎn)：緩蝕性能　出處：《表面技術(shù)》2017年10期 　論文類(lèi)型：期刊論文

【摘要】：目的改善緩蝕劑在高溫酸液中的緩蝕性能,滿足油田高溫井酸化施工的要求。方法在合成一種新型吡啶季銨鹽的基礎(chǔ)上,添加炔醇、碘化鉀等助劑進(jìn)行復(fù)配,得到一種新型高溫酸化緩蝕劑HTCI-1。使用HK-1高溫高壓動(dòng)態(tài)腐蝕儀對(duì)其緩蝕性能進(jìn)行測(cè)試,通過(guò)電化學(xué)測(cè)試、SEM、EDS等實(shí)驗(yàn)對(duì)其緩蝕機(jī)理進(jìn)行分析。結(jié)果該酸化緩蝕劑在160℃、16 MPa、20%HCl或者土酸(12%HCl+3%HF)、質(zhì)量分?jǐn)?shù)3.0%的條件下,使N80試片的腐蝕速率分別為24.53 g/(m~2·h)和23.72 g/(m~2·h),達(dá)到了SY/T 5405—1996中的一級(jí)指標(biāo)。結(jié)論在高溫酸液中,N80鋼片腐蝕速率降低,主要是由于緩蝕劑分子吸附到碳鋼表面形成了一層致密的疏水性吸附膜,從而降低了侵蝕性離子與鋼鐵表面接觸的幾率,腐蝕電極反應(yīng)過(guò)程受到抑制,達(dá)到了高溫條件下防護(hù)金屬的目的。
[Abstract]:Objective to improve the corrosion inhibition performance of corrosion inhibitor in high temperature acid solution and to meet the requirements of acidizing operation of oilfield high temperature wells. Methods based on the synthesis of a new pyridine quaternary ammonium salt, the additives such as acetylene alcohol and potassium iodide were added. A novel high temperature acidizing inhibitor HTCI-1 was obtained. The corrosion inhibition performance of HTCI-1 was tested by HK-1 high temperature and high pressure dynamic corrosion tester. The corrosion inhibition mechanism was analyzed by electrochemical test, such as SEMN EDS and so on. Results the acidizing inhibitor was prepared under the condition of 160 鈩，

本文編號(hào)：1560564