Reinforced concrete is one of the most widely used materials in engineering construction
and reinforced concrete structures can be degraded by CO 2 in a humid environment. This …

Understanding the tensile strength and failure mechanism of rock–cement interfacial
transition zone (ITZ) is of vital significance to the sealing integrity of cement sheath under …

Wellbore leakage is complicated to understand due to the range of potential leakage
pathways and uncertainties regarding their capacities. In this study we present a novel …

Squeeze cementing is a process used to repair leaking oil and gas wells, in which a cement
slurry is driven under pressure to fill an uneven leakage channel. This results in a Hele …

In the context of CO 2 geological storage, the wellbore is a critical location for potential CO 2
leakage, with the cement bond surface being the primary pathway. The mechanical bond …

Maintaining sealing integrity of cement sheath is essential to oil and gas well completion.
The development of large-scale hydraulic fracturing reservoir stimulation technology in …

Heterogeneously distributed micromineral aggregates (MMAs) are common in shale
reservoirs. The interfaces between these MMAs and the surrounding minerals significantly …

Microchannels located at the cement–rock interface can form potential pathways for
formation fluid leakage in oil and gas wells. The effects of geometric shape, quantity, and the …

Mitigating greenhouse gas emissions from hydrocarbon wells is an industrywide challenge,
with microstructural variations in the cement sheaths lining the wells recognized as key …

The integrity of cement–salt rock interfaces (CSI) in salt cavern gas storage wells may be
damaged during circulating gas injection, production, and long-term gas pressure …