Work

Mechanical integrity of cement sheath barriers in deepwater wells under earthquake-induced fault slip: A three-dimensional finite-element study for offshore geohazard conditions

Year: 2026

Type: article

Abstract: • A 3D contact FE model links earthquake magnitude to formation slip. • Fault slip localizes tensile and shear damage near the slip plane. • Mohr-Coulomb and contact criteria quantify cement-sheath barrier risk. • Cement modulus, Poisson's ratio, dip angle and Mw govern stress buildup. • Flexible cement systems support anti-shear design for deepwater wells.

Source: Ocean Engineering

DOI: 10.1016/j.oceaneng.2026.126251

Authors: Chuanying Tian, Hu Meng, Jiang Wu, Kai Bai, Kaide Zhao, Shuangjin Zheng

Institutions: Yangtze University, Key Laboratory of Drilling and Production Engineering for Oil and Gas, Hubei Province, China National Offshore Oil Corporation (China)

Language: English

Topic: Drilling and Well Engineering

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,150

Funders: National Natural Science Foundation of China, Yangtze University