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P110油管鋼在添加元素硫的CO2模擬油田地層水溶液中的腐蝕行為研究
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石油管工程技術(shù)研究院,石油管工程技術(shù)研究院,石油管工程技術(shù)研究院,石油管工程技術(shù)研究院,石油管工程技術(shù)研究院,石油管工程技術(shù)研究院

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國家自然科學基金（青年基金）基金編號：NO.51301202，NO.21506256.


Corrosion Behavior of P110 Tubing Steel in the CO2-saturated Simulated Oilfield Formation Water with Element Sulfur Addition
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State Key Laboratory of performance and Structural Safety for Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC,State Key Laboratory of performance and Structural Safety for Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC,State Key Laboratory of performance and Structural Safety for Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC,State Key Laboratory of performance and Structural Safety for Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC,State Key Laboratory of performance and Structural Safety for Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC,State Key Laboratory of performance and Structural Safety for Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Institute of CNPC

Fund Project:

National Nature Science Foundation of China under Contracts of 51301202 and 21506256

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    摘要:

    隨著油氣需求的不斷增長，促進了高酸性氣田的不斷開發(fā)，由于元素硫、CO2，以及地層水等腐蝕因素的耦合作用，給油氣田生產(chǎn)帶來了很大的腐蝕風險。在本工作中，通過浸泡試驗和電化學測量研究了P110油管鋼在含有元素硫和二氧化碳的模擬油田地層水中的腐蝕行為。結(jié)果表明，P110鋼的腐蝕速率隨著溫度增加而增大，溫度升高促進了硫化鐵的形成，并且引起了嚴重的點腐蝕。然而， 不同溫度范圍內(nèi)溫度變化對腐蝕的影響主要歸因于不同的腐蝕控制物質(zhì)，如低溫下的二氧化碳和高溫下的元素硫?；谠摻Y(jié)果，討論了元素硫和二氧化碳的耦合效應(yīng)。

    Abstract:

    With continuously growing oil and gas demand, exploitation of highly sour reservoirs brings large corrosion risks due to the coupling effects of corrosive factors including elemental sulfur, CO2, and formation water. In the present work, corrosion behavior of P110 tubing steel in simulated oilfield formation water containing elemental sulfur and CO2 was investigated by immersion tests and electrochemical measurements. The results indicated that increasing temperature accelerated the corrosion rate of P110 tubing steel, promoted the formation of iron sulfide, and caused serious pitting corrosion. However, influence of temperature varied at different temperature range mainly due to the different corrosion-controlling species like CO2 at low temperatures and elemental sulfur at high temperatures. Based on the results, the coupling effects of elemental sulfur and carbon dioxide were discussed.

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Jian Miao, Juntao Yuan, Yan Han, Xiuqing Xu, Lei Li, Ke Wang. P110油管鋼在添加元素硫的CO2模擬油田地層水溶液中的腐蝕行為研究[J].稀有金屬材料與工程,2018,47(7):1965~1972.[Jian Miao, Juntao Yuan, Yan Han, Xiuqing Xu, Lei Li, Ke Wang. Corrosion Behavior of P110 Tubing Steel in the CO2-saturated Simulated Oilfield Formation Water with Element Sulfur Addition[J]. Rare Metal Materials and Engineering,2018,47(7):1965~1972.]
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  • 收稿日期:2017-04-24
  • 最后修改日期:2017-08-10
  • 錄用日期:2017-08-18
  • 在線發(fā)布日期: 2018-10-10
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