Slag Gelled Material for Cementing Slurry System Research

  • Qiwei Mu
  • Ming Li
  • Lu Liu
  • Jianzhang Hao
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)


A slag cementing slurry was investigated in this study, which based on the slag MTC technology, drilling fluid technology and multifunctional curable liquid separation technology. According to the downhole temperature of different depth section, the impact of the solidified body strength performance was examined at temperature of 30, 50, 70, 90, 120 ℃. The results indicated that the slag cementing fluid application temperature was from 30 to 90 ℃, the density range was 1.30–1.60 g/cm3, and the retarder HX-31L could be used to adjust thickening time. High cementing quality of this system had been obtained in the oilfield. The engineering behavior of fluid loss, stabilization and compatibility with drilling fluid were meet the engineering needs. The high temperature hydration products of slag solidified body were analyzed by the aid of SEM, XRD and EDS. Under the condition of 90 ℃, the hydration products of slag solidified body are mainly a honeycombed or spherical C–S–H gel. The small contact surface of the hydration products results in poor cementing quality. The high Ca to Si value will produce the crystal shape shift and form in the internal stress, resulting the micro crack initiation and poor stability.


Slag Gelled material Cementing slurry system 



The authors would like to acknowledge the co-financial support by the National Science and Technology Major Project (NO. 2016ZX05020004-008 and 2016ZX05052) and Applied basic research project of Sichuan Province (2017JY0042) for the financial support.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringSouthwest Petroleum UniversityChengduChina
  2. 2.State Key Laboratory for Comprehensive Utilization of Vanadium and Titanium ResourcesPangang Group Research Institute Co., LtdPanzhihuaChina

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