Volume 34 Issue 4
Jul.  2017
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FENG Yingtao, SONG Maolin, ZHANG Hao, LI Houming. Liquid Cementing Fluid Reduced Lightened Deep Water Light-weight Cement Slurry[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(4): 80-84. doi: 10.3969/j.issn.1001-5620.2017.04.015
Citation: FENG Yingtao, SONG Maolin, ZHANG Hao, LI Houming. Liquid Cementing Fluid Reduced Lightened Deep Water Light-weight Cement Slurry[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(4): 80-84. doi: 10.3969/j.issn.1001-5620.2017.04.015

Liquid Cementing Fluid Reduced Lightened Deep Water Light-weight Cement Slurry

doi: 10.3969/j.issn.1001-5620.2017.04.015
  • Received Date: 2017-02-11
  • Publish Date: 2017-07-31
  • Contrary to the surface hole cementing operation, deep water surface hole cementing imposes new requirements on well cementing operation because of the deep water environment and the operation condition. A new liquid light weight agent PC-P81L has been developed for use in cementing the surface hole in deep water drilling, and a cementing fluid was formulated with PC-P81L. Laboratory experimental results showed that PC-P81L can be used to adjust the density of cement slurry between 1.30 g/cm3 and 1.70 g/cm3. PC-P81L has strong suspending capacity; it can suspend cement slurries with water/cement ratio of 2. PC-P81L is not only a light weight agent, it is also a strength enhancer in cement slurries with conventional densities. PC-P81L can accelerate the setting of cement slurry in deep water low temperature environment. By increasing the water/cement ratio, the density of the deep water low density cement slurry can be reduced, and the yield of the cement slurry increased, thereby reducing the consumption of cement in field application. The formulation of the cement slurry is simple and the properties of the cement slurry are easy to adjust. The additives used are added in liquid form, thereby lightening the field labor intensity. The use of the cement slurry has satisfied the needs for deep water low temperature operation, providing insurance for drilling the deeper formation. Compared with hollow microsphere, the operation cost of the light weight cement slurry is quite lower.

     

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