... the development ( Li et al., 2008 ). When water breakthroughs, the water cut rises too fast, which reduces the oil displacement efficiency and the oil recovery rate. It should be noted that the thief zone refers to a layer with relatively high permeability and thin thickness in the whole reservoir section...

... Abstract The traditional definition of volumetric sweep efficiency sums the effects of both fingering (arising due to contrasts in mobility) and bypassing (arising due to contrasts in permeability as well as well placement). Accordingly, we cannot quantitatively attribute poor sweep to either...

... pattern should be selected for a pilot to test the concept. The selected design/pattern will help to achieve the highest recovery factor, understand pilot performance and best displacement efficiency compared with the other patterns in cost effective manner. There are many steps for any EOR implementation...

... and the overburden also leads to heat losses. The objective of this paper is to investigate how Foam Assisted-SAGD could mitigate these technical issues and improve the efficiency of the SAGD process. Compositional thermal reservoir simulations are used to simulate and analyze a Foam Assisted-SAGD pilot. The shear...

... Abstract The traditional trial and error approach of history matching to obtain an accurate model requires engineers to control each uncertain parameter and can be quite time consuming and inefficient. However, automatic history matching (AHM), assisted by computers, is an efficient process...

..., and efficiency, where the total means stress is assumed to keep constant and the flow equations is solved first. This sequential coupled method is implemented by using the Galerkin Finite Element Method for the mechanics balance equations and the finite volume method for the mass balance equations, where fluid...

... factors on the heat loss and efficiency of steam circulation by considering the properties of tubing, annulus, liner, fluid components and formations on a conceptual model. Using an advanced criterion by monitoring the temperature distributions near the wellbore, wellbore operations including...

... to mitigate formation damage was implemented. This is achieved via abrasive jetting and thermal conductivity techniques to induce micro fractures that vastly enhanced the fracture efficiency, with velocity strings combined with depletion compression. Furthermore, the characterization and simulation efforts...

...) as compared to that of the in-situ oil (0.24 cP). One approach to overcome this issue is to thicken the injected gas to effectively control the gas mobility and increase the sweep efficiency. This study will present the details of a numerical reservoir simulation study, which assesses the potential benefits...

... Abstract Parallel reservoir simulators are now widely used with availability of super computers. Modern massively parallel supercomputers demonstrate great power for simulating large-scale reservoir models. However, improving scalability and efficiency for fully implicit methods on emerging...

..., field injectivity tests, pilot water injection and intensive surveillance plan. Water injection is part of field redevelopment plan and will increase recovery factor by 7.3%. Upstream Oil & Gas mobility ratio sweep efficiency fracture pressure injector viscosity producer enhanced...

... for better understanding of micro-scale displacement efficiency and will help to optimize polymer flooding designs for enhanced oil recovery (EOR) projects. Numerical modelling of viscoelastic fluids is notoriously difficult. Standard Galerkin finite element method tends to have numerical oscillations...

... and real-time data in intelligent/smart fields can be used to make efficient decisions for improving field production. However, large volumes of data may not necessarily result in high-quality decisions, especially when uncertainty exists in the field development. In this paper, a decision-making approach...

... sweep efficiency, and low mobility ratios, all of which can dramatically impair oil recoveries. Vast amounts of remaining oil-in-place have led operators to analyze opportunities to improve WF management and production. This paper presents an approach to increase recovery and improve performance...

... result shows that emulsification role is favor of further improvement of displacement efficiency on middle-high permeability layer, moreover, it could enhance sweep efficiency of low-middle layer. Alkaline scale could decrease inject capability of injection wells and produce capability of oil wells...

... parallel reservoir simulation, waterflood efficiency algorithm, streamline visualization, and ensemble-based optimization method. With a reservoir dimension longer than 48 km, parallel reservoir simulation becomes necessary for an integrated Burgan field study. Through history matching of 60-year...

... development process gives a relatively poor recovery factor. This is the lowest of all the Non-hydrocarbon Gas Injection (NHGI-WAG) development processes investigated. Development Process mobility ratio Upstream Oil & Gas simulation model Modeling & Simulation Efficiency injection...

... guess based on reservoir concepts enhances both the result and efficiency of the gradient based optimization. The manual optimization saves the gradient based methods from a number of local optima and also decreases the simulation costs substantially. Two line search methods, steepest descent...

... & Gas Asphaltene Precipitation displacement concentration reduction experiment reservoir enhanced recovery Efficiency Asphaltene Flocculation co2 injection evaluation Oil Recovery reservoir fluid permeability asphaltene Introduction Oil recovery factor (RF) is usually broken...

... is to maintain reservoir pressure and improve the microscopic efficiency, hence, increase the overall recovery in the field. The dynamic miscible process is examed with a continuous gas injection. A laboratory study revealed that the miscibility could be achieved with a pressure of about 241.4 bars (i.e. 3500...