| 绥中36-1油田注聚井注入压力高原因分析及增注措施 |
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| 引用本文： | 陈华兴,高建崇,唐晓旭,崔刚,朱凯.绥中36-1油田注聚井注入压力高原因分析及增注措施[J].中国海上油气,2011,23(3). |
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| 作者姓名： | 陈华兴 高建崇 唐晓旭 崔刚 朱凯 |
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| 作者单位： | 1. 中海油能源发展股份有限公司钻采工程研究院
2. 中海石油(中国)有限公司天津分公司 |
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| 基金项目： | 国家重大专项“海上油田注入水综合治理技术研究( |
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| 摘 要： | 绥中36-1油田注聚井注入压力高导致欠注井的比例占到35％.造成注聚井注入压力高的原因主要为:储层岩石胶结疏松、泥质杂基含量高,微粒易运移；早期注水已使储层遭受一定程度的污染；聚合物的吸附滞留造成近井地带堵塞；现阶段井口平台注入水水质不达标；高浓度聚合物母液与配注用生产污水不完全配伍；过滤系统精度不够,大颗粒絮团或聚合物鱼眼随注入水进入地层.可通过严格控制注入水水质、确定最佳清污混注比例以及在注聚系统加多重滤网过滤消除注聚井外来物质堵塞,并采用复合型化学解堵剂进行解堵,从而达到增注目的.
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| 关 键 词： | 绥中36-1油田 注聚井 注入压力高 欠注 原因分析 增注措施 |
Cause analysis of high injection pressure and measure of augmented injection in polymer injectors of SZ 36-1 oilfield |
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| Chen Huaxing,Gao Jianchong,Tang Xiaoxu,Cui Gang,Zhu Kai.Cause analysis of high injection pressure and measure of augmented injection in polymer injectors of SZ 36-1 oilfield[J].China Offshore Oil and Gas,2011,23(3). |
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| Authors: | Chen Huaxing Gao Jianchong Tang Xiaoxu Cui Gang Zhu Kai |
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| Affiliation: | Chen Huaxing1 Gao Jianchong2Tang Xiaoxu2 Cui Gang2 Zhu Kai2 (1.CNOOC Energy Technology & Service-Oilfield Engineering Research Institute,Tianjin,300452,2.Tianjin Branch of CNOOC Ltd.,300452) |
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| Abstract: | There are 35% polymer injectors are under-injected in SZ 36-1 oilfield due to high injection pressure.The high injection pressure is caused mainly by that,reservoir rocks are loose cemented,with high mud content and particles transported easily;early water injection led to the reservoir damage in a certain degree;polymer adsorption retention blocked near borehole zone;the injection water quality on the wellhead platform does not satisfy the requirments of standard at present;the polymer mother liquor is not... |
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| Keywords: | SZ 36-1 oilfield polymer injector high injection pressure under-injected cause analysis measure of augmented injection |
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