| 降滤失剂作用机理研究——对不同类型降滤失剂的分析 |
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| 引用本文： | 张春光,孙明波,侯万国,刘玉英,孙德军. 降滤失剂作用机理研究——对不同类型降滤失剂的分析[J]. 钻井液与完井液, 1996, 0(3) |
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| 作者姓名： | 张春光 孙明波 侯万国 刘玉英 孙德军 |
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| 作者单位： | 山东大学胶体与界面化学研究所 山东济南(张春光，孙明波，侯万国，刘玉英)，山东大学胶体与界面化学研究所 山东济南(孙德军) |
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| 摘 要： | 在滤饼电性质、滤饼渗透率、滤液粘度、电镜分析和粒度分布等方面研究结果的基础上,论述了非离子、阴离子型降滤失剂的作用机制。分析了不同类型降滤失剂性能差异的根本原因,即分子结构的不同导致了降滤失剂效果的不同,包括含有极性基的数量和种类、分子量、分子结构以及空间位阻。非离子型降滤失剂主要通过全方位堵塞滤饼毛细孔发挥作用;阴离子型降滤失剂则是通过增加滤饼负电荷密度,缩小毛细孔孔径来达到降滤失目的;非离子型降滤失剂没有分散作用,而阴离子型降滤失剂则有一定的分散作用;但降滤失剂都有良好的护胶作用。
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| 关 键 词： | 水基钻井液 降滤失剂 作用 机理 |
Study on function mechanism of filtration reducer: Comparison |
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| Zhang Chun-Guang, Sun Ming-Bo, Hou Wan-Guo, Liu Yu-Ying, and Sun De-Jun. Study on function mechanism of filtration reducer: Comparison[J]. Drilling Fluid & Completion Fluid, 1996, 0(3) |
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| Authors: | Zhang Chun-Guang Sun Ming-Bo Hou Wan-Guo Liu Yu-Ying Sun De-Jun |
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| Affiliation: | Zhang Chun-Guang, Sun Ming-Bo, Hou Wan-Guo, Liu Yu-Ying, and Sun De-Jun,Institute of Colloid and Interface Chemistry of Shandong University,Shandong Province |
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| Abstract: | Based on results in the investigation about the electrokinetic property of filter cakes, purmeabili-ty, filtrate viscosity, electronic microscope photos, and mud particle distribution, the mechanism of non-ionic and anionic filtrate reducers are discussed. The properties of filtrate reducer contribute to their different molecular structure. Non-ionic filtrate reducers work by means of completely blocking the filter cake pore, and anionic ones by means of increasing negative charge density of filter cakes and decreasing pore size. Anionic species cause further clay dispersion, but non-ionic do not, and both of them are beneficial to colloid stability. The order of filter cake quality for various fluid loss additives is also given. |
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| Keywords: | Fluid Loss Additive Water Base Mud Mud Additive Mechanism |
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