.... Employing quantitative isothermal adsorption techniques, it elucidates pore structure alterations pre- and post-hydration. Quantification of the impact of fluid imbibition on different pore sizes was conducted. It was found that the influence on organic matter pores and macropores larger than 50 nm...

... ABSTRACT: We aimed to analyze the physical changes resulting from the hydration process of buffer-backfill composite materials, used in nuclear waste repositories. To achieve this, we established experimental setups capable of simultaneous hydration and X-ray CT imaging and conducted...

... ABSTRACT: The mechanical properties of reservoir rocks are of great significance to the study of rock mechanics, hydraulic fracturing design and reservoir stimulation. The failure mechanism and characteristics of rock under the condition of high temperature hydration have been one...

... well integrity hydraulic fracturing reservoir geomechanics hydration slurry transition integrity simulation modeling & simulation evolution prediction cement property percolation threshold increment clinker hydration reaction compression ARMA 24-252 THMC cement initial state...

... in a single framework. Non-analytical components of the model are resolved via one-dimensional Finite Difference schemes, and coupled with pen-and-paper solutions via simple numerical integration schemes. Time-dependent material properties of hydrating cement are taken into account in the incremental problem...

... different mechanical and thermal loadings. During hydration, the cement pastes are also exposed to various temperature conditions. After well construction, when cement hydration takes place, the cured cement is submitted to thermal cyclic loadings following a batchwise CO 2 injection. Injected from...

... to investigate the behavior of these materials. In this study we assessed the swelling behavior of KJ-II Gyeongju bentonite under hydration using X-ray CT technology. A cylindrical sample of 27.5 mm in diameter and 34 mm in height using was utilized in a tailor-made hydration cell, and water was injected...

... 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...

... ABSTRACT: In this work, we have developed a methodology to model the stress evolution in cement plugs during hydration. The model begins with the slurry state of cement and calculates the water consumption and void creation over time as the hydration reactions progress. The void volume change...

... experiment exploitation hydraulic fracturing humidity hydration beijing shale hydration porous media ARMA 22 697 Research on the influence of hydration on the evolution law of shale pore structure Yang C., Jia K.K., Zhang X.R., Wang L.L.* China University of Petroleum (Beijing), Beijing, China...

... ABSTRACT: Bentonite buffer in the geological repository for high-level radioactive waste undergoes the heating from the waste package and hydration from the geological formation and goes through coupled thermo-hydro-mechanical-chemical (THMC) changes over the life span of a repository...

... ABSTRACT: Shale hydration is an important factor affecting the productivity and flowback rate of shale gas wells. Taking the shale of Longmaxi formation (LF) in the Sichuan Basin as the research object, the experiment of shale hydration was carried out, and the quantitative characterization...

... ABSTRACT: Studying the changes of deep mudstone strength properties after hydration are vital for the design of well drilling and proper choice of drilling fluid for deep wellbore stability. However, the previous methods (Coupled with conventional immersion test and compressive test...

... radioactive waste and hydrated from the surrounding host rock. These perturbations trigger complex coupled THMC (thermal-hydrological-mechanical-chemical) processes, which need to be well understood to allow forecasting of long-term performance. Data at high-temperature conditions however is limited. We...

... integrity during, for example, a casing test, requires simulations of hydration and loading history from placement until final hydration and also the knowledge of poroelastic parameters of the cement paste at every degree of hydration. Conventional laboratory experiments, such as drained or undrained...

... ABSTRACT: Cement sheath in oil/gas wells plays an important role by providing zonal isolation of different fluids; it protects also the tubular against corrosion and provides mechanical support. In a well, cement paste that forms the cement sheath, hydrates under different conditions...

... images were then registered and Digital Image Correlation (DIC) technique was used to analyze the developed strains during the experiment. The results showed for instance that hydration induced stresses are unlikely to cause any micro-fracture initiation under hydrostatic stresses however micro-fractures...

... ABSTRACT: Despite the significant hydrocarbon production from unconventional shale resources in the last decade, hydration induced mechanical responses of shales especially at micro-scale level is not yet fully understood. Such mechanical responses especially to hydraulic fracturing fluids...

... undesired formation fluid flow through surface and/or other formation(s) behind the casing annulus. The cement exothermic heat development is one of the probable internal alteration to cause SCP evolution. cement property Upstream Oil & Gas cement sample hydration Heat Generation casing...

... Abstract: The use of cemented paste backfill (CPB) in the mining industry has increased over the past two decades. A comprehensive understanding of the stiffness development of CPB during early binder hydration stages has great impacts on the safety and economy of mines. Ultrasonic wave...