... Abstract At present, carbonate reservoirs are becoming more and more complex, and multi-stage alternating injection acidification and acid fracturing process is required. Therefore, we have developed an integrated variable viscosity thickener based on a copolymer of a series of designed...

... Abstract This paper uses reactive transport modelling to analyse the impact of variations in the water and gas injection flow rates from a geochemical perspective on the scaling potential of carbonate reservoirs under CO 2 -WAG injection. A sensitivity analysis of the calcite saturation index...

... to be positively charged in the presence of FM and calcium ions. geologist air emission upstream oil & gas sedimentary rock carbonate reservoir fluid dynamics carbonate rock united states government complex reservoir social responsibility sustainable development experiment subsurface storage...

... formulation can also be optimized to resolve diversion challenges in other applications at high temperature. carbonate reservoir injection fluid dynamics geology upstream oil & gas wormhole flow in porous media viscosity presented diversion nasr-el-din exhibition complex reservoir acid...

... chemistry artificial intelligence sustainable development energy economics carbonate reservoir united states government shale gas geothermal category flow assurance energy transition petroleum engineer application international symposium texas presentation north america government enhanced...

.... produced water discharge sedimentary rock carbonate reservoir upstream oil & gas geologist carbonate rock waterflooding united states government enhanced recovery geological subdiscipline complex reservoir pw-2 produced water geology rock type seawater-like pw-2 wettability alteration...

..., making its production economical. The bullhead treatment combining microgel and gel proves to be a good WSO strategy for wells suffering from strong bottom aquifer channeling and should have many applications in fractured carbonate reservoirs. carbonate reservoir complex reservoir upstream oil...

... dissolution in the fracture. We also included acid viscous fingering in our model since the viscous fingering mechanism is commonly applied in acid fracturing to achieve non-uniform acid etching. Carbonate reservoirs mainly consists of calcite and dolomite minerals but the mineral distribution can be quite...

... reduce the uncertainty inherent to CO 2 -EOR and carbon sequestration projects. climate change enhanced recovery chemical flooding methods equation of state flow in porous media waterflooding carbonate reservoir injector brine subsurface storage upstream oil & gas precipitation...

... Brazilian pre-salt carbonate reservoirs are offshore oil reservoirs located 300 km from shore. Development and production of such reservoirs are performed under difficult conditions, with water depths exceeding 2 km, and a heterogeneous reactive carbonate reservoir beneath a salt layer with domes...

... Abstract Globally, dolomite formations are important reservoirs for oil and gas. Acid stimulation is commonly used to extend the life of carbonate reservoirs, and a good understanding of the fluid performance is essential for effective treatment design. Three acids, hydrochloric acid (HCl...

... in a comprehensive carbonate acidizing model to predict the diversion efficiency of PLA particles. The simulation is verified using published field trials of diversion treatments. production control production logging complex reservoir carbonate reservoir drilling fluid selection and formulation drilling...

... 24 h C C C CL P P C – Clear; CL – Cloudiness; P – Precipitate; S – Separation Abstract About half of the world's oil reserves are in carbonate reservoirs, and most of these formations are mixed-wet or oil-wet and fractured, with extremely heterogeneous porosities...

... surfactants, which lead to deeper penetration of acid with low pore volume to breakthrough. This new emulsified acid system efficiently stimulates HP/HT carbonate reservoirs. HPHT complex reservoir carbonate reservoir Upstream Oil & Gas concentration emulsion high pressure high temperature...

... Abstract The optimum design of matrix acidizing treatments in carbonate reservoirs requires accurate modeling of wormhole propagation. While there are several wormhole correlation models available, most are developed based on small core scale experiments, and result in significant deviation...

... Abstract Carbonate reservoir matrix acidizing is commonly conducted with HCl. In these treatments, HCl acid is used to create conductive channels (wormholes) to enhance well productivity/injectivity. However, its use has been limited due to associated rapid tubulars corrosion and formation face...

... Abstract Successful matrix acidizing of carbonate reservoirs depends on the selection of optimal stimulation fluids. Because of the rapid reaction rate and corrosive nature of HCl in downhole conditions, other alternatives are much in demand. Organic acids, particularly methanesulfonic acid...

... Subsurface Corrosion carbonate reservoir acid system sandstone face dissolution Pipeline Corrosion acidizing Upstream Oil & Gas concentration corrosion rate dolomite core flowline corrosion complex reservoir well integrity breakthrough flow rate reaction rate dissolution wormhole...

... Abstract Oil recovery in highly heterogeneous carbonate reservoirs is typically inefficient because of the high permeable fracture networks and unfavorable capillary force resulting from oil-wet matrix. Foam as a mobility control agent has been proposed to mitigate reservoir heterogeneity...

... Abstract Acid stimulation, for both oil and gas wells, greatly supports the industry as a versatile means of enhancing production. Although acids enhance carbonate reservoir permeability to hydrocarbons, the reactions rates of the acid (e.g., HCl) with the rock often occur too rapidly at high...