| 渤中34-2/4油田注入水相容性研究 |
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| 引用本文： | 张美,李海涛,山金城,乔文波,李龙飞.渤中34-2/4油田注入水相容性研究[J].石油化工高等学校学报,2014(1):29-34. |
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| 作者姓名： | 张美 李海涛 山金城 乔文波 李龙飞 |
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| 作者单位： | [1] 西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]中海石油 （中国） 有限公司天津分公司,天津300452 |
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| 基金项目： | 中国海洋石油（中国）有限公司项目“中国近海低孔低渗油气藏勘探开发关键技术与实践”（CNOOC-SY-001）和“低渗透油田注水水质综合评价与注水剖面均衡控制研究”（CCL2012TJPZTS0380）. |
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| 摘 要： | 根据渤中34-2/4油田注入水与地层水特征,通过结垢软件预测了注入水与地层水的结垢趋势,静态结垢实验得到了注入水与地层水的结垢量,动态结垢实验评价了注入水结垢对岩心渗透率的伤害程度。结果表明,该油田注入水与地层水相容性较差,注入过程中会产生碳酸钙垢,最大结垢量为1 199mg/L,结垢量为800mg/L时,岩心渗透率伤害程度较大,达到32%。对比了有机磷酸和聚合物两大类共6种阻垢剂的阻垢效果,确定了针对该油田阻垢效果较好的为PBTCA阻垢剂;加入该阻垢剂后,静态阻垢率达85%,动态实验中岩心渗透率的伤害程度降低到13%。
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| 关 键 词： | 注入水 地层水 相容性 结垢 渗透率伤害 阻垢剂 |
Compatibility between the Injection Water and Formation Water in Bozhong 34-2/4 Oilfield |
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| Zhang Mei,Li Haitao,Shan Jincheng,Qiao Wenbo,Li Longfei.Compatibility between the Injection Water and Formation Water in Bozhong 34-2/4 Oilfield[J].Journal of Petrochemical Universities,2014(1):29-34. |
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| Authors: | Zhang Mei Li Haitao Shan Jincheng Qiao Wenbo Li Longfei |
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| Affiliation: | 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu Sichuan 610500, China; 2. Tianjin Branch of CNOOC China Limited, Tianjin 300452, China) |
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| Abstract: | Comprehensive evaluation in Bozhong 34-2/4 oilfield has been made via software , static and dynamic scaling experiments .The results show that incompatibility between the injection water and formation water and calcium carbonate scale would produce during injection process ,it’s scaling reached 1 199 mg/L .When scaling of 800 mg/L ,core permeability damage up to 32% .Scale studies of the six kinds of inhibitors suggest that ,for this oilfield ,inhibitor PBTCA has better anti-scaling effect ,static-scaling reduced by 85% and core permeability damage reduced approximately by 13% . |
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| Keywords: | Injection water Formation water Compatibility Scale Core permeability damage Inhibitor |
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