| 聚合物低剪切井下配注器的研制及应用 |
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| 引用本文： | 马宏伟,单晶,申秀丽,张宏禄,袁云. 聚合物低剪切井下配注器的研制及应用[J]. 石油机械, 2005, 33(8): 33-34 |
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| 作者姓名： | 马宏伟 单晶 申秀丽 张宏禄 袁云 |
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| 作者单位： | 河南油田分公司石油工程技术研究院 |
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| 基金项目： | 中石化集团公司2001年科技攻关项目的部分研究内容,项目名称：改善聚合物驱开发效果技术,编号：P01045,该产品已获国家专利,专利号：ZL03242874.X. |
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| 摘 要： | 为了解决聚合物井下低剪切配注问题,研制了新型聚合物配注器。该配注器阻流段采用同心双环形连续扩缩管结构,对聚合物限流阻力大、剪切率低,当流量在25～170m3/d范围时,可产生压降1.5～3.6MPa,剪切降解率小于6%;配注器出口通道设计有低剪切洗井滑阀,具有反洗关闭、正注增阻的双重功能,可以避免地层返吐物堵塞水嘴,并实现反洗井,提高分注适应性,延长分注工艺有效期。现场应用42井次114套次,工艺成功率95%,取得了良好的应用效果。
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| 关 键 词： | 聚合物驱 配注器 分注 剪切降解 |
| 收稿时间： | 2005-03-02 |
| 修稿时间： | 2005-03-02 |
Development and application of down-hole flow regulator for polymer flooding |
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| Ma Hongwei. Development and application of down-hole flow regulator for polymer flooding[J]. China Petroleum Machinery, 2005, 33(8): 33-34 |
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| Authors: | Ma Hongwei |
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| Abstract: | A new kind of down-hole flow regulator for polymer flooding is developed to solve the problem of multi-layer separate injection at low shear rate. Provided with two concentric ring ripple pipes, the flow regulator exerts a large flow resistance on the polymer and therefore a low shear rate can be realized. When the flow rate is within 25-170 m3/d, a pressure drop of 1.5-3.6 MPa can be produced, and the shearing degradation rate of the polymer will be less than 6%. A slide valve which can be closed during back washing is fixed at the outlet of the flow regulator. The regulator has been used in 42 wells with good effect. |
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| Keywords: | polymer flooding flow regulator separate injection shearing degradation |
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