| 有机酸在海上油田酸化中的应用 |
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| 引用本文： | 张磊,金千欢,梁伟,张君,成梅华,李建兵. 有机酸在海上油田酸化中的应用[J]. 石油化工, 2011, 40(7): 770-774 |
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| 作者姓名： | 张磊 金千欢 梁伟 张君 成梅华 李建兵 |
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| 作者单位： | 中国石化胜利油田分公司采油工艺研究院,山东东营,257000 |
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| 摘 要： | 海上油田酸化过程中存在着管柱及电缆腐蚀,残酸返排液处理成本高,残酸导致原油乳化从而使得原油脱水困难等一系列问题,严重影响了油田的正常生产和经济效益。用新型有机酸SW-A酸有针对性地解决了海上油田酸化中存在的这些难题。室内溶蚀实验评价结果表明,SW-A酸对岩心粉的最终溶蚀率达到20.575%,可有效提高渗透率26%左右。SW-A酸与岩心反应缓慢,在有效提高油藏渗透率的同时还可用于深部酸化作业。通过对SW-A酸的静态腐蚀实验得到其对管柱和设备的腐蚀程度仅约为1.4g/(m2.h),具有较好的Fe3+稳定能力;从破乳实验可以得知SW-A酸不会导致原油乳化,对原油脱水几乎无影响。
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| 关 键 词： | 油田酸化 残酸返排 溶蚀实验 破乳 有机酸 |
Organic Acid Used in Offshore Oilfield Acidification |
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| Zhang Lei,Jin Qianhuan,Liang Wei,Zhang Jun,Cheng Meihua,Li Jianbing. Organic Acid Used in Offshore Oilfield Acidification[J]. Petrochemical Technology, 2011, 40(7): 770-774 |
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| Authors: | Zhang Lei Jin Qianhuan Liang Wei Zhang Jun Cheng Meihua Li Jianbing |
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| Affiliation: | Zhang Lei,Jin Qianhuan,Liang Wei,Zhang Jun,Cheng Meihua,Li Jianbing(Shengli Oil Production Technology Research Institute,SINOPEC,Dongying Shandong 257000,China) |
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| Abstract: | A new organic acid,SW-A acid with phytic acid as the matrix liquid,was used in acidification for offshore oilfields,which could improve corrosion protection of the cables and pipelines,and treatment of acid flow-back which would lead to crude oil emulsification and the dehydration difficulty.According to the dissolution experiments,the ultimate dissolution percentage of the core powder was 20.57%(w) and the permeability of the core was improved by 26% by using SW-A acid.Because the reaction between SW-A aci... |
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| Keywords: | acidification in offshore oilfield acid flow-back corrosion experiment demulsification organic acid |
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