石油化工2011，Vol.40Issue(7)：770-774,5.
有机酸在海上油田酸化中的应用
Organic Acid Used in Offshore Oilfield Acidification
张磊 1金千欢 1梁伟 1张君 1成梅华 1李建兵1
作者信息
- 1. 中国石化胜利油田分公司采油工艺研究院,山东东营257000
- 折叠
摘要
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 acid and the core was slow, SW-A acid could be used in the acidification in the depths of the offshore oilfields. The captive corrosion test revealed that the corrosion degree of SW-A acid to the pipelines was only about 1. 4 g/(m2 · h) and it could maintain the stability of Fe3+. The demulsification experiment showed that SW-A acid wouldn' t lead to the crude oil emulsification and affect its dehydration.关键词
油田酸化:残酸返排/溶蚀实验/破乳/有机酸Key words
acidification in offshore oilfield/acid flow-back/corrosion experiment/demulsification/organic acid分类
能源科技引用本文复制引用
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):770-774,5.
