Cement-casing shear bond strength: a review of the affecting variables and various enhancement techniques
- 27 July 2022
- journal article
- review article
- Published by Taylor & Francis in Petroleum Science and Technology
- Vol. 41 (21) , 1971-1984
Abstract
A significant concern in oil and gas well construction is well integrity. The inability to obtain proper zonal isolation during cementation can lead to severe consequences threatening the integrity of the wellbore. Micro-annulus in the bulk cement or behind the casing causes leakage when the cement bonds fail. Thus, the bonding between the cement and the casing is crucial in preserving the wellbore integrity. The bond mechanically supporting the casing pipe in the cement sheath is the cement-casing shear-bond. Many factors have a crucial part in strengthening the shear-bond are discussed in detail. This review systematically summarizes the efforts made on this topic in the recent past. The primary objective of this review is to discuss the factors affecting the strength of the cement-casing shear-bond by describing the different perspectives. It also explains the laboratory and the various bond evaluation methods applied in the field. In addition, it also discusses the challenges and the research gap along with the future scope in this domain.Keywords
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