[1]劉貴賓,連宇博,韓創輝,等.抗硫緩蝕劑在長慶油田含硫區塊某轉油站的應用效果研究[J].石油管材與儀器,2020,6(03):22-25.[doi:10.19459/j.cnki.61-1500/te.2020.03.006]
 LIU Guibin,LIAN Yubo,HAN Chuanghui,et al.Application Effect of Special Antisulfur Corrosion Inhibitors in a Gathering Station of Changqing Oilfield[J].Petroleum Tubular Goods & Instruments,2020,6(03):22-25.[doi:10.19459/j.cnki.61-1500/te.2020.03.006]
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抗硫緩蝕劑在長慶油田含硫區塊某轉油站的應用效果研究
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《石油管材與儀器》[ISSN:2096-0077/CN:61-1500/TE]

卷:
6
期數:
2020年03期
頁碼:
22-25
欄目:
試驗研究
出版日期:
2020-06-20

文章信息/Info

Title:
Application Effect of Special Antisulfur Corrosion Inhibitors in a Gathering Station of Changqing Oilfield
文章編號:
2096-0077(2020)03--0022-04
作者:
劉貴賓1連宇博1韓創輝1陸瀟2焦生寧1李文娟1范磊3
1.西安長慶化工集團有限公司 陜西 西安 710018;2.中國石油長慶油田分公司第十一采油廠 陜西 西安 710016;3.中國石油集團石油管工程技術研究院,石油管材及裝備材料服役行為與結構安全國家重點實驗室 陜西 西安 710077
Author(s):
LIU Guibin1 LIAN Yubo1 HAN Chuanghui1 LU Xiao2 JIAO Shengning1 LI Wenjuan1 FAN Lei3
1.Xi′an Changqing Chemical Group Co. Ltd.,Xi′an, Shanxi 710018,China; 2.The Eleventh Exploit Factory of PetroChina Changqing Oilfield Company, Xi′an ,Shanxi 710016,China; 3. State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi′an, Shaanxi 710077, China
關鍵詞:
抗硫緩蝕劑集輸站場H2S腐蝕腐蝕監測
Keywords:
antisulfur corrosion inhibitorsgathering stationH2S corrosioncorrosion monitoring
分類號:
TG174.42
DOI:
10.19459/j.cnki.61-1500/te.2020.03.006
文獻標志碼:
A
摘要:
長慶油田含硫區塊某轉油站站內集輸管線及閥組管線材質為20#碳鋼,針對站內集輸管線在高含水、高H2S分壓、高礦化度和高CO2分壓腐蝕環境下常常發生穿孔泄漏的腐蝕問題,開發了抗硫專用緩蝕劑,完成了現場試點應用。采用腐蝕掛片監測裝置進行對比試驗,結果表明,在現場應用過程中抗硫緩蝕劑的緩蝕率達到99.87%,點蝕速率降低兩個數量級。采用SEM-EDS等對現場掛片的腐蝕產物成分、結構進行分析。結果表明,未加注緩蝕劑時,腐蝕產物可以分為FeCO3為主的內層和FeS為主的外層。加注緩蝕劑時腐蝕產物為FeS,原始機械劃痕清晰可見,腐蝕非常輕微。但是當油泥和Sr、Ba沉淀附著在表面時,仍然有局部腐蝕發生,但是局部腐蝕風險較低。
Abstract:
The pipeline material steel used in the gathering station in the sulfurcontaining block of Changqing Oilfield is 20# carbon steel. The corrosion of the pipeline in the station is serious under high water content, high H2S partial pressure, high salinity and high CO2 partial pressure. Corrosion problems with perforated leakages often occur. A kind of special antisulfur corrosion inhibitors for this serious corrosion was developed and applied at the gathering station. Comparing the monitoring results, it was found that the corrosion inhibition rate of this corrosion inhibitor reached 99.87% during the field application. The composition and structure of the corrosion products were analyzed by SEMEDS. The results showed that the corrosion products can be divided into the inner layer of FeCO3 and the outer layer of FeS without corrosion inhibitor. When the corrosion inhibitor is added, the original mechanical scratches are clearly visible, and the corrosion is very slight, resulting in the corrosion product FeS. However, when the sludge and the Sr and Ba precipitates adhere to the surface, there was still a risk of local corrosion.

參考文獻/References:

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備注/Memo

備注/Memo:
基金項目: 陜西省自然基金項目“固態NH4Cl與水蒸汽協同作用下加氫換熱器管束中溫腐蝕研究”(項目編號:2018JQ-213);中國石油集團公司超前儲備項目"微納米自修復表面功能化技術理論研究"(項目編號:2018Z-01) 第一作者簡介:劉貴賓,男,1986年生,2010年畢業于中國石油大學(華東)應用化學專業,主要從事油氣田開發工作。E-mail:[email protected]
更新日期/Last Update: 2020-06-25
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