Oil Well Cement Hardening

Abstract

Oil well cement, as the primary impermeable barrier within the wellbore, plays a critical role in maintaining this integrity by ensuring zonal isolation and providing structural support. The hardening process, also referred to as the setting process, involves a complex interplay of physical, chemical, and mechanical transformations that are crucial for achieving long-term wellbore stability. A comprehensive understanding of cement hardening, particularly the evolution of its mechanical properties and state of stress over time, is fundamental for predicting cement failure and assessing wellbore integrity. This chapter provides a detailed exploration of the hardening process of oil well cement, focusing on its physical, chemical, and mechanical aspects. To advance the quantitative understanding of cement behavior, an innovative experimental study is introduced, measuring the stress evolution during and after hardening in the cement under the in situ condition. The findings provide valuable insights into cement performance under downhole conditions.

Department(s)

Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

cement chemistry; cement failure; Cement hardening; laboratory investigation; wellbore operations

International Standard Book Number (ISBN)

978-032399587-0;978-032399586-3

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Elsevier, All rights reserved.

Publication Date

01 Jan 2025

Link to Full Text

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