Mechanical Properties and Microstructure of Oil Well Cement Stone Reinforced with Potassium Titanate Whiskers

  • Jiaming Yu
  • Ming Li
  • Xihui Hu
  • Jianhua Guo
  • Quan Cao
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

The cement base material is one of the brittle materials. Under the complex downhole stress this kind of material easily failed and the sealing integrity was decreased. In this case the potassium titanate whiskers (PTW) improved the mechanical properties and microstructure of oil well cement. Scanning electron microscope (SEM) analysis and the mechanical testing were carried out. The result shows that the compressive, splitting tensile and flexural strength increased by 27.5, 110.5 and 30.7% respectively with the addition of 1.5% PTW after curing for 7 days. And the whisker pullout, crack deflection and whisker bridging are regarded as the effective mechanisms for the addition of potassium titanate whiskers to improve the mechanical properties and microstructure of oil well cement.

Keywords

Oil well cement Potassium titanate whiskers Mechanical properties Microstructure Toughening mechanism 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Jiaming Yu
    • 1
  • Ming Li
    • 1
  • Xihui Hu
    • 2
  • Jianhua Guo
    • 2
  • Quan Cao
    • 2
  1. 1.School of Materials Science and EngineeringSouthwest Petroleum UniversityChengduChina
  2. 2.Engineering Technology Institute of Petro China Southwest Oil and Gas Field CompanyChengduChina

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