... frequency coupling strength reduction co 2 injection simulator subsurface storage enhanced recovery production control coupling reservoir simulator stability coupling iteration compressibility coupling algorithm Introduction The interplay between fluid flow in deep porous formation...

..., particularly in situations where transverse isotropy significantly influences rock behavior. The low permeability of saturated shale rock indeed has implications for wellbore stability, especially immediately after drilling. When drilling through shale formations, the drilling process can disturb...

..., we present an initial study to evaluate long-term stability and dynamic flooding properties of existing water-based tracers in the presence of Portland cement and CO 2 originated ions. The stability experiments were performed at two different temperatures. The dynamic flooding properties were...

... Figure 4 Schematic diagram of core flooding experiments. Figure 5 Schematic diagram of a double-sublayer heterogeneous core sample. Core Displacement Tests Nanoparticles and surfactants have a great synergy in the stability and rheology of the emulsion( Binks and Lumsdon...

... functional groups of polymers, crosslinkers and retardants is essential to control the gelation process considering kinetic, strength and stability of the gel. The objective of this work is to better understand chemistry mechanisms in gel formation to design an optimal gelation system for in-depth...

... Therefore, before introducing CO 2 -foam to huge oilfield EOR process, the foam behavior needs to be improved and investigated thoroughly. In this study, we investigated the CO 2 foam stability when the NPs existed with switchable surfactants and the influence of salinity and pH on the colloidal...

...Introduction Abstract Conventional drilling design tends to inaccurately predict the mud density needed for borehole stability because it assumes that the porous medium is fully saturated with a single fluid while in actuality it may have two or more fluids. This paper provides a new semi...

... by silica nanoparticles is not yet well understood. Moreover, the problem of its instability under high temperature and for long duration remained a topic of research. Poor stability of nanoparticles under harsh reservoir conditions strongly influences the EOR performance and impairs its transport through...

... Abstract This paper describes a nanoparticle-based approach for stabilizing the low-cost petroleum sulfonate surfactants in high salinity and temperature water to enable their utility in EOR applications in typical carbonate reservoirs. The paper presents and discusses experimental results...

...% friction reduction of the fracturing fluid with surfactant and SA was achieved and fluid stability and compatibility with standard guar-based fracturing fluids was also verified, thus providing compelling evidence for field trials. shale gas shale oil fracturing fluid complex reservoir formation...

... in more efficient foaming agents, additives and boosters are discussed. Moreover, in depth analysis of field applications of foam in EOR projects show that the main problems encountered during field-scale foam applications are related to foam stability, foam compatibility, as well as adsorption...

... rocks, which, due to their mineral composition, need different chemical treatment compared to sandstone rocks. The research was mainly focused on using alcohol-based solvents, minimizing the magnitude of permeability damage by chemicals and improving the stability of anionic chemical in brine...

... hydrate dissociation cannot flow away if the permeability of the formation is very low causing high pore pressure to trap behind the casing. The trapped pore pressure in combination with the casing eccentricity may endanger the stability of the casing depending on the magnitude of trapped pore pressure...

... will be left between the pore walls and the oil. Under certain conditions, the water film may become unstable and collapse. Depending on the chemistry of the oil, water, and porous rock, this collapse may result in wettability alteration. Stability of the water film will control the wettability alteration...

... will require a minimum of three or four plugs at each sample point. To summarise the essentials of sampling requirements: Abstract Knowledge of accurate rock strength is essential for in situ stress estimation, wellbore stability analysis, sand production prediction and other geomechanical applications...

... and altering the mechanical properties of the sediments. Gas hydrate can also dissociate during setting and/or cementing, causing gas release which could result in delaying completion of the wellbore due to the flow of gas around the casing (conductor pipe) or affecting the casing integrity or casing stability...

... over the liner holes takes place at low values of far-field stress. However, elevated values of far-field stress lead to a continuous, high-rate (‘massive’) sand production. stability mechanism strength fluid flow wellbore reservoir geomechanics spe 65183 reservoir characterization sand...

... reservoir restriction stability field experience cross-linking solution spe 65278 auxiliary perforation polymer gas-capped oil reservoir gas flow perforation drilling fluids and materials production control enhanced recovery chemical flooding methods injection application production...

... compatibility are recorded to quantify performance. Emulsion droplet size and distribution are key parameters influencing flow and (in) stability under practical scenarios, and optical microscopy investigations on systems as a function of time and temperature are presented. A move from largely monodisperse...

... Decommissioning Deconstruction Lifting/Handling Transportation P. 549 upstream oil & gas protection navigational clearance safety module removaf cost platform situ operation disposal removal alternative bottom stability crane vessel partial removal abandonment sea bed...