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Showing 1 to 20 of 32 for “"Waterflooding"”.
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Mechanistic Modeling, Design, and Optimization of Low Salinity Waterflooding
Low Salinity Waterflooding (LSW) is an emerging attractive enhanced oil recovery (EOR) method because of its oil recovery performance and relatively simple, environmentally friendly implementation, when compared with conventional high salinity waterflooding and EOR approaches. Most studies on the …
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Simultaneous Multiple Plane to Plane Waterflooding in Fractured Tight Reservoirs
Waterflooding is common in conventional reservoirs, but efforts to apply waterflooding to unconventional tight oil formations have not met much success. The purpose of this research is to investigate the effectiveness of a novel 3-well pattern using horizontal wells (one injector and two producers, …
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Waterflooding Management and Identifying IOR Opportunities in a Mature Reservoir
This thesis has identified opportunities to improve production performance by utilizing secondary and tertiary recovery strategies in a mature oil reservoir. The identification techniques include analytical methods and simulation studies on field performance. Recommendations based on the field …
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Improving the simulation of a waterflooding recovery process using artificial neural networks
The waterflood performance of the dual five-spot pilot project in the Stringtown oil field, situated in West Virginia, has been studied. A numerical simulator, called BOAST98, was used for the simulation purposes, after developing a reservoir description.;The producing horizon in the field is the …
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Finite difference modeling of oil recovery by waterflooding using horizontal well injectors
Waterflooding is the most commonly used injection method for secondary recovery of oil reservoirs. The selection of a horizontal well or a vertical well as an injector is an important issue in waterflooding because these two types of wells can behave differently due to their orientation in the …
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Pressure Pulsing Potential During Waterflooding and CO2 Flooding of Heavy Oil Reservoirs
… traditional methods of oil displacement, namely waterflooding or immiscible gas injection, could lead to a very low recovery factor. Thermal and chemical impacts on a reservoir are the main methods of increasing sweep efficiency and recovery factor. Nevertheless, the first method is pricy and the …
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Development of Scaling Crieteria for Waterflooding and Immiscible CO2 Flooding in Unconventional Reservoirs
… validated to evaluate the performance of both waterflooding and immiscible CO2 flooding in tight formations. Experimentally, saturation pressures of the CO2-light oil systems are determined with a versatile PVT system and then used to tune the binary interaction parameter (BIP) correlations …
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Experimental Study on Improving the Waterflooding Potential in Different Heavy Oil-Solvent Systems
… mobility ratio of heavy oil and water, waterflooding cannot be used successfully without the support of natural energies (such as solution gas drive, foamy oil effect, expansion effect, etc.) in heavy oil reservoirs. In previous studies, the parameters related to the pressure change, …
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Optimum Timing for CO2-EOR After Waterflooding and Soaking Effect on Miscible CO2 Flooding in a Tight Sandstone Formation,
… included the optimum timing for CO2-EOR after waterflooding and soaking effect on miscible CO2 flooding in a tight sandstone formation. First, the saturation pressure (Psat), oil-swelling factor (SF), gas–oil ratio (GOR) of CO2- saturated light oil, and gas–water ratio (GWR) of CO2-saturated …
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Numerical Modeling and Simulation of Mineral Dissolution in Fractured Carbonate Formations
… in many subsurface transport processes including waterflooding, geological CO2 sequestration (GCS), and matrix acidizing in carbonate formations. Such a dissolution process could form the preferential pathways to cause a failure of waterflooding and GCS due to the early breakthrough of the …
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Methods and systems for ballooned hydraulic fractures and complex toe-to-heel flooding
… is an improvement upon conventional Toe-to-Heel Waterflooding and uses gravity segregation to increase the oil production rate and the total oil recovery. The second completion strategy, named “Optimized Zipper Frac (OZF),” increases hydrocarbon recovery from organic shales. OZF is an improvement …
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Using data analytics and laboratory experiments to advance the understanding of reservoir rock properties
… both critical in oilfield developments. After waterflooding treatments over decades, the petrophysical properties of a conventional reservoir may change in many aspects. It is crucial to identify the variations of these petrophysical properties after the long-term waterflooding treatments, both …
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Applications of Continuous Wavelet Transform in Hydraulic Fracturing and Reservoir Management
… and inter-well connectivity for optimizing waterflooding operations. In fracture closure analysis, the study reviews established methods like the Nolte, tangent, and compliance methods, introducing an innovative approach that integrates these techniques with fluid flow equations and …
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Application of dynamic optimization methods for foam floods in stratified reservoirs
… functions. In the process, the impact of initial waterflooding and varying foam strength on the optimum project termination time, as well as the sensitivity of foam parameters on the optimum field injection strategy is investigated. Two main optimization techniques are tested: static optimization, …
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Simulating water tracer test in naturally fractured reservoirs using discrete fracture and dual porosity models
… fractured reservoir. We performed a simple waterflooding with two conservative tracers on the reservoirs. The results presented in each section include the graphs of the oil production rate, water production rate, and tracer concentration. In addition, we presented the oil saturation …
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Digital Rock: Understanding the mechanism of Enhanced Oil Recovery (EOR) Core Floods
… of the physical phenomena which occur during waterflooding and enhanced oil recovery (EOR) is needed to optimise the oil recovery. In this thesis, Nuclear Magnetic Resonance (NMR) has been employed to detect fluid displacement at reservoir-representative velocities and dynamically monitor the …
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Novel insights into low salinity water flooding enhanced oil recovery in sandstone reservoirs
… (IOR) techniques, such as low salinity (LS) waterflooding. Also, the reduction in reservoir energy and the friendly environmental aspects of low salinity water flooding (LSWF) provide additional incentives for its use. That LS water requires decreasing only the active divalent cations such as …
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Optimization of chemical enhanced oil recovery methods for naturally fractured carbonate reservoirs
… especially if they are naturally fractured. Waterflooding is inefficient because water flows through the highly permeable fractures and bypasses the rock matrix, where most of the oil is stored. Mixed-wettability, low matrix permeability, and large heterogeneities also make secondary oil …
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