Volume 32 Issue 6
Nov.  2015
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WANG Xuguang. Effect of Re-dispersible Powdered Latex on Properties of Low Temperature Cement Slurry[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(6): 65-67,71. doi: 10.3969/j.issn.1001-5620.2015.06.017
Citation: WANG Xuguang. Effect of Re-dispersible Powdered Latex on Properties of Low Temperature Cement Slurry[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(6): 65-67,71. doi: 10.3969/j.issn.1001-5620.2015.06.017
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Effect of Re-dispersible Powdered Latex on Properties of Low Temperature Cement Slurry

doi: 10.3969/j.issn.1001-5620.2015.06.017

  • Department pf Drilling Fluid, Research Institute of Drilling Engineering Technology, Babaixiang, Daqing, Heilongjiang 163413, China

  • Received Date: 2015-07-02
  • Publish Date: 2015-11-30
    Abstract
  • Effects of re-dispersible powdered latex of the properties low temperature cement slurry were studied.It is found that the permeability of set cement can be remarkably reduced by adding re-dispersible powdered latex into the cement slurry, the bond strength of the interface between set cement and casing string/borehole wall at the same time is increased.At concentration of 4.0% redispersible powdered latex, the permeability of the set cement is reduced by 94.2%, while the bond strengths of the interfaces between set cement and casing string/borehole wall are increased by 66.4%and 84.1%, respectively.Addition of the re-dispersible powdered latex improves the micro-structure of the set cement and the interfaces, making them denser and smoother.At concentrations of less than 3%, the latex has less effect on the thickening time, mobility and compressive strength of the set cement.At concentrations greater than 3%, the latex to some extent viscosifies the cement slurry, and retards the development of the strengths of the cement slurry.

     

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