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Showing 1 to 17 of 17 for “"Formation damage"”.
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Drilling fluids filtration and impact on formation damage.
… that the production engineer uses to quantify formation damage in terms of well performance based on the total skin factor after drilling operations are: production logging, flow measurement and well test data. The total skin factor is used in the flow equations to estimate the production rate …
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Development of formation damage models for oilfield polymers.
… fluids present complex phenomena that can induce formation damage. Formation damage due to polymer retention can occur via mobility reduction in three possible mechanisms of polymer-induced formation damage: 1) pore-throat blocking, 2) wettability alteration (which can alter permeability), and 3) …
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Hall plot analysis for horizontal well injectivity
… for applications in various scenarios such as formation damage and/or stimulation diagnosis, polymer injection, and gas injection. It has proved to be a simple, inexpensive, and effective way to diagnose changes in injectivity. However, such applications are limited to vertical wells. This …
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Método de decomposição de domínios de múltiplos passos de tempo de Dirichlet-Neumann aplicado à injeção de polímeros em meios porosos
… behavior, mechanical retention, and formation damage in twodimensional and three-dimensional domains that replicate a five-spot injection pattern. Numerical simulations show that the proposed computational model accurately captures the solutions with low computational costs in various …
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The Influence of Equilibrium Reactions on the Kinetics of Calcite Dissolution in Lactic Acid Solutions
… has historically been a common means of removing formation damage and increasing the productivity of petroleum wells. Organic acids have been used in an effort to minimize the corrosion problem and the rapid reaction rate encountered when using strong acids, such as hydrochloric acid (HCl). The …
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Investigating the performance of high viscosity friction reducers used for proppant transport during hydraulic fracturing
… proppant transport and minimizing or eliminating formation damage.</p> <p>This study investigates the influence of the use of produced water on the rheological behavior of HVFRs compared to a traditional linear guar gel. Experimental rheological characterization was studied to investigate the …
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Impact of slickwater fracturing fluid compositions on the petrophysical properties of shale and tightsand
… extension. A breaker is also pumped into the formation to degrade the friction reducer. However, it is not clear that what is the best time to break it. After the hydraulic fracturing, the existence of liquid in matrix reduces the gas phase permeability. A surfactant is added to reduce water …
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Evaluation of recrosslinkable preformed particle gel (RPPG) as a fluid loss control material during drilling operations
… including wellbore collapse, fluid inflow, formation damage, environmental issues, and nonproductive time. This research aims to evaluate novel materials that can mitigate lost circulation and overcome the limitation of other materials. In this research, a comprehensive evaluation of a …
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Experimental and modelling studies on the phase behaviour of mutual solvents and their transport through porous media in oil/brine/mutual solvent systems in the context of scale inhibitor squeeze treatments
… scale inhibitor adsorbs or precipitates into the formation, and its desorption/dissolution into the produced water when the well is put back into production prevents scale formation. A well must be re-squeezed before the scale inhibitor concentration in the produced water falls below the minimum …
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Damage characterization and modeling of notched graphite/epoxy sandwich panels in compression
Damage tolerant design, which focuses on a structure's ability to perform in a damaged state, is widely used in the aerospace industry today. Although extensive research has been carried out in this area for notched composite laminates, a relatively small fraction has dealt with compressive loading …
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Injection Impairment by Suspended Solids: Well Models, Filtration Parameters, and Models’ Validation with 3-D Injection Experiments
… constraints, produced water is re-injected into formation for reservoir pressure maintenance and disposal. However, suspended particles in produced water cause formation plugging, resulting in reduced permeability and loss of injectivity. Water injection, without solids suspension, at high …
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Fracture Stimulation by Nano-assisted Foam-based Fluids in High-Temperature Reservoirs
… benefits, such as low water consumption, reduced formation damage, low leak-off rate and high efficiency in transporting and distributing proppants in the fractures. However, while surfactant agents are mainly used to generate and stabilize liquid foams, they tend to degrade very quickly at high …
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Experimental and Numerical Investigation of Nanotechnology on Foam Stability for Hydraulic Fracturing Application
… technique for creating fractures in a subsurface formation to achieve profitable production rates in a wellbore. The process involves the injection of a high-pressure fracturing fluid to induce fractures around the wellbore in a target interval enhancing oil and gas production in damaged wells or …
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Particle Detachment in Single-Phase and Two-Phase Flows in Porous Media
… chase drive in a two layer-cake reservoir. The formation damage caused by fines mobilisation during low-salinity water injection diverts the injected water flux into low-permeability zones and enhances sweep efficiency. An optimal low-salinity slug size existed for all simulated cases. The …
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Pore-scale Study of Flow and Transport in Energy Georeservoirs
… understanding of multiphase flow in the formation rock is critical in achieving sustainable long-term productivity within a reservoir. Specifically, the interactions between the critical dimensionless numbers associated with multiphase flow, including contact angle, viscosity ratio, and …
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An experimental investigation of some capillary pressure-relative permeability correlations for sandstone reservoir rocks.
… end effect and the depth of mud invasion in formation damage assessment.