Volume 33 Issue 2
Mar.  2016
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QI Ben, FU Jiawen, SUN Qinliang, LIU Wenming, YU Qianqian, DU Bin. High Temperature Salt Resistant Nonionic Anti-channeling Styrene Butadiene Latex[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(2): 79-83. doi: 10.3969/j.issn.1001-5620.2016.02.017
Citation: QI Ben, FU Jiawen, SUN Qinliang, LIU Wenming, YU Qianqian, DU Bin. High Temperature Salt Resistant Nonionic Anti-channeling Styrene Butadiene Latex[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(2): 79-83. doi: 10.3969/j.issn.1001-5620.2016.02.017

High Temperature Salt Resistant Nonionic Anti-channeling Styrene Butadiene Latex

doi: 10.3969/j.issn.1001-5620.2016.02.017
  • Received Date: 2015-12-03
  • Publish Date: 2016-03-31
  • Oil well cement slurries treated with nonionic styrene-butadiene latex have poor stability,low temperature tolerance and low salt resistance,not suitable for cementing high temperature deep wells or wells with complex borehole profile.An anti-channeling latex,BZT-L2,has recently been developed by adding two alkylphenol ethoxylate of different degrees of polymerization into the nonionic styrene-butadiene latex.Evaluation of the BZT-L2 latex revealed that a cement slurry treated with 8% of the latex at temperatures between 30℃ and 170℃ had API filter loss controlled less than 50 mL,and the latex can be used in saturated salt system.The latex treated cement slurries had good stability and the thickening curves were right-angled.BZT-L2 not only reduced filter loss of the cement slurries,it also rendered the cement slurries anti-channeling capability.The non-ionic styrene-butadiene latex had good compatibility with other cement slurry additives,and the general properties of cement slurries,such as rheology,free water and stability have all been excellent.

     

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