Cement failure probability analysis in water injection well

Zhaoguang Yuan, Paolo Gardoni, Jerome Schubert, Catalin Teodoriu

Research output: Contribution to journalArticlepeer-review

Abstract

In the petroleum industry, the salt water was produced along with oil and gas. Due to the environment issue, the oil companies choose, the cheap and convenient way, to inject salt water into the reservoir. Because of the cycle load that injects water periodically, the cement fatigue failure should be considered in cement design. In this paper, the cement compressive failure, shear failure, tensile failure and fatigue failure modes were considered with different bottomhole pressures. The uncertainties of casing mechanical properties, cement mechanical properties, formation mechanical properties and wellbore geometry were also considered in the study. Based on the analysis, it is shown that within the cement compressive strength requirement, the wellbore service life can be increased by enhancing cement plastic behavior. The elastic cement with higher plasticity showed better behavior than brittle cement though the brittle cement has higher compressive strength.

Original languageEnglish (US)
Pages (from-to)45-49
Number of pages5
JournalJournal of Petroleum Science and Engineering
Volume107
DOIs
StatePublished - Jul 1 2013

Keywords

  • Cement failure
  • Injection wells
  • Probability analysis
  • Random variables

ASJC Scopus subject areas

  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology

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