... ABSTRACT Cementing is an integral operation in any oil and gas well. Although conventional cement has been used for many years, it suffers from two significant problems. These include significant numbers of failures especially at extreme conditions, and environmental damage due to high...

... ABSTRACT In carbon dioxide (CO 2 ) capture and storage (CCS) technology, one of the goals is to prevent the injected CO 2 from leaking back into the atmosphere. The leakage paths include fractures on the cement sheath sealing the injection well and/or reactivated faults going through...

... ABSTRACT The process of cementing a well is essential to ensuring the well doesn't collapse. The cement slurry is pumped into the annulus between the casing and the formation. Cement restricts the movement of formation fluids while also supporting the casing. Different types of additives have...

... ABSTRACT Artificial sandstone-like rocks fabricated in the laboratory offer great advantages in controlling their grain size distribution, grain morphology, porosity, and cement content. Synthetic granular rocks offer an efficient way to validate existing analytical models, calibrate numerical...

... ABSTRACT Cementing process is one of the most crucial parts of the drilling operation that could determine the durability and the stability of the oil or gas wells. Many additives had been introduced into the formula of the oil well cement to reach certain quality to support the well. "Greener...

... january 2023 completion risk assessment operation sustainability subsurface storage sustainable development safeguard cc project cement taiwan government united states government modeling & simulation geological subdiscipline injection well storage complex development plan...

... ABSTRACT Temperature fluctuations within a wellbore are common occurrences in various applications, including carbon sequestration, hydrogen storage, and thermal storage. To ensure long-term well integrity, it is necessary to investigate the mechanical response of the cement annulus under...

... opt for grout injection after the installation of the anchors. The present study presents the results of instrumented pull tests performed in Grouted Split Sets and its comparison with the result of tests performed in Split Sets without the application of cement, in an underground manganese mine...

..." diameter core sample that has a concentric two-inch drilled hole is used in this study. A one-inch perforated pipe, as the casing, is placed inside the 2" hole, and the cement will be placed between the pipe and the core. 72 hours after pouring the cement between the core and the pipe, hydrogen is injected...

.... This prediction plays a critical role in the determination of wellbore storage capabilities, well integrity and overall energy storage efficiency. This paper shows experimental results on measuring thermal properties of various cement properties as well as selected rock which are used as comparison. Our data...

... ABSTRACT: Wellbores constructed in high-temperature environments require more reliable cement systems to overcome complicated near-borehole loads. In this study, we numerically evaluate the effect of temperature on the interfacial bond integrity of two cementitious materials - an industrial...

.... However, there is a debate about the best technology for zonal isolation. Some experts favor cementing a liner in the borehole and fracturing through perforations or sliding sleeves in order to obtain a hydraulic connection to the reservoir rock whilst others prefer open-hole packer solutions in order...

... ABSTRACT: The strength of Portland cement material deteriorates sharply in the high-temperature environment under the shale oil in-situ conversion condition, which can reach up to 650 C. During this study, the high-temperature resistance of oil well cement modified by different grades...

... water injection operation, highlighting the importance of optimizing the cement stone’s mechanical properties. This paper presented a work flow for the cement sheath integrity of water injection well. First, in order to investigate the evolution of mechanical property for cement stone during...

... ABSTRACT: Cement matrix is exposed to several loadings, which can harm its key properties and impede its functions, especially at the early age of forming the cement matrix where its properties are not entirely developed. Nanoclay is a powder material with very fine-grained particles which...

... ABSTRACT: This paper presents the results of numerical studies aiming to assess the effects of cement hydration on the casing integrity in superhot well conditions. Casing integrity challenges for high and super-high temperature geothermal wells were first discussed. A simplified well cement...

... boundary. This paper develops a synthetic sandstone as a model material for bursting rocks prepared in the laboratory to advance the study of the rockburst phenomenon. The synthetic sandstone is composed of fine-grained F-75 Ottawa sand, type I/II cement, and water. The brittle behavior of the material...

... ABSTRACT: Cement-mud displacement plays a crucial role in the sealability of cement sheaths. An unstable interface between two fluids always leads to mud channeling, interfluid mixing, and cement contamination and degrades the cement quality. In this study, a 3D computational fluid dynamics...

... cement technology suorineni reservoir characterization backfill university acoustic emission calculation determination accuracy effect strategy attenuation ARMA 22 13 Strategy towards accurate location of seismic events sources in mining environments: Effect of voids and backfill...

...ARMA 21 1230 Estimation of initial cement stress in wells Moghadam, A., and Orlic, B. TNO Energy Transition, Utrecht, The Netherlands Copyright 2021 ARMA, American Rock Mechanics Association This paper was prepared for presentation at the 55th US Rock Mechanics/Geomechanics Symposium held...