Download or read book Microfluidic and Micro core Methods for Enhanced Oil Recovery and Carbon Storage Applications written by Phong Thanh Nguyen and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Injection of CO2 into the subsurface, for both storage and oil recovery, is an emerging strategy to mitigate atmospheric CO2 emissions and associated climate change. In this thesis microfluidic and micro-core methods were developed to inform combined CO2-storage and oil recovery operations and determine relevant fluid properties. Pore scale studies of nanoparticle stabilized CO2-in-water foam and its application in oil recovery to show significant improvement in oil recovery rate with different oils from around the world (light, medium, and heavy). The CO2 nanoparticle-stabilized CO2 foams generate a three-fold increase in oil recovery (an additional 15% of initial oil in place) as compared to an otherwise similar CO2 gas flood. Nanoparticle-stabilized CO2 foam flooding also results in significantly smaller oil-in-water emulsion sizes. All three oils show substantial additional oil recovery and a positive reservoir homogenization effect. A supporting microfluidic approach is developed to quantify the minimum miscibility pressure (MMP) - a critical parameter for combined CO2 storage and enhanced oil recovery. The method leverages the inherent fluorescence of crude oils, is faster than conventional technologies, and provides quantitative, operator-independent measurements. In terms of speed, a pressure scan for a single minimum miscibility pressure measurement required less than 30 min, in stark contrast to days or weeks with existing rising bubble and slimtube methods. In practice, subsurface geology also interacts with injected CO2. Commonly carbonate dissolution results in pore structure, porosity, and permeability changes. These changes are measured by x-ray microtomography (micro-CT), liquid permeability measurements, and chemical analysis. Chemical composition of the produced liquid analyzed by inductively coupled plasma-atomic emission spectrometer (ICP-AES) shows concentrations of magnesium and calcium. This work leverages established advantages of microfluidics in the new context of core-sample analysis, providing a simple core sealing method, small sample size, small volumes of injection fluids, fast characterization times, and pore scale resolution. Lastly, a microfluidic approach is developed to analyze the complex, multiphase fluid interactions in CO2 enhanced oil recovery at relevant reservoir temperature and pressure. Fluorescence imaging is applied to visualize and measure the effect of CO2 pressure on contact angles changes at the pore scale.

Download or read book Microfluidics in CO2 Capture Sequestration and Applications written by Taotao Fu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The abnormal climate change has made the reduction of CO2 emission that received worldwide attention. The integration of CO2 capture-sequestration application for enhanced oil recovery (EOR) technology will be the new trend. Several scholars have applied microfluidics in CO2 capture, oil and gas analysis, and CO2 sequestration. The mass transfer process for CO2 capture can be intensified owing to the large specific surface/volume ratio and high contact area in microchannels. The small amount of feeding volumes of oil and gas samples and the quick response for the analysis make the microfluidics a promising tool for the oil and gas analysis. Moreover, microfluidics can reveal the transport mechanism at microscale for multiphase interfacial phenomena in microchannels within porous media during the CO2 flooding process in line with the pressure, temperature, and material properties of the rock within the oil reservoir. This chapter will elaborate the progress of the application of microfluidic technology in the utilization of CO2, including the mechanism of mass transfer for CO2 in microreactors, the advantages of microfluidics in oil and gas analysis, and the fundamentals of microfluidics in CO2 flooding, oil recovery improvement, and CO2 sequestration.

Download or read book Microfluidic Analysis for Carbon Management written by Andrew Sell and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fabrication of Micro nanofluidic Models and Their Applications for Enhanced Oil Recovery Mechanism Study written by Yandong Zhang and published by . This book was released on 2020 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Micro-/nanofluidic model, as a potential powerful tool, has been used for decades for investigating fluid flow at pore-scale in energy field. It is still increasingly imperative nowadays to use different micromodels to direct observe pore-level fluid flow and analyze mechanisms of different enhanced oil recovery methods. In this work, three main tasks including three dimensional micromodels (1D,2D,3D) are proposed to fabricate and use for investigating different mechanisms of different enhanced oil recovery methods. For 1D capillary tube micromodel, we fabricate and use it to investigate the dynamics of a trapped oil droplet under seismic vibration. Seismic stimulation is a promising technology aimed to mobilize the entrapped non-wetting fluids in the subsurface. The applications include enhanced oil recovery or CO2 sequestration. For 2D micromodel, we fabricate to mimic unconventional dual-porosity shale-like tight porous media and investigate the fluid flow behavior under such conditions. Unconventional oil reservoirs have become significant sources of petroleum production and have even better potential in the future. Many shale oil systems consist of nanoscale pores and micro-scale fractures that are significantly smaller than those from conventional reservoirs. Therefore, it is increasingly important to investigate fluid flow behaviors in nanoscale channels. For 3D micromodel, we packed and sintered glass beads into quartz tubes to mimic 3D porous media. Because of difficulties for direct visualization, almost all the micromodels available are two-dimensional models which cannot represent real interconnected pore network of a real reservoir porous media. Thus, we build fully transparent 3D models to direct visualize and investigate the in-situ emulsification mechanism for nanogel flooding"--Abstract, page iv.

Download or read book Chemical Nanofluids in Enhanced Oil Recovery written by Rahul Saha and published by CRC Press. This book was released on 2021-09-14 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable world economy requires a steady supply of crude oil without any production constraints. Thus, the ever-increasing energy demand of the entire world can be mostly met through the enhanced production from crude oil from existing reservoirs. With the fact that newer reservoirs with large quantities of crude oil could not be explored at a faster pace, it will be inevitable to produce the crude oil from matured reservoirs at an affordable cost. Among alternate technologies, the chemical enhanced oil recovery (EOR) technique has promising potential to recover residual oil from matured reservoirs being subjected to primary and secondary water flooding operations. Due to pertinent complex phenomena that often have a combinatorial role and influence, the implementation of chemical EOR schemes such as alkali/surfactant/polymer flooding and their combinations necessitates upon a fundamental understanding of the potential mechanisms and their influences upon one another and desired response variables. Addressing these issues, the book attempts to provide useful screening criteria, guidelines, and rules of thumb for the identification of process parametric sets (including reservoir characteristics) and response characteristics (such as IFT, adsorption etc.,) that favor alternate chemical EOR systems. Finally, the book highlights the relevance of nanofluid/nanoparticle for conventional and unconventional reservoirs and serves as a needful resource to understand the emerging oil recovery technology. Overall, the volume will be of greater relevance for practicing engineers and consultants that wish to accelerate on field applications of chemical and nano-fluid EOR systems. Further, to those budding engineers that wish to improvise upon their technical know-how, the book will serve as a much-needed repository.

Download or read book Microfluidic and Nanofluidic Study of Solvent based Unconventional Hydrocarbon Processes written by ZhenBang Qi and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unconventional resources such as tight oil and bitumen do not yield to conventional production processes and are difficult to produce economically. The use of solvents to extract unconventional resources has shown promise and has potential to enable efficient production while overcoming the limitations of the current processes. However, adding a solvent phase adds further complexity to a physical system that is already poorly understood, with multicomponent mixtures within multiscale micro- and nano-confined geometries. While conventional laboratory testing methods can provide some insight, they do not resolve the critical physical/chemical mechanisms at the pore-scale. Over the past few years, microfluidic approaches have been increasingly applied in the energy sector, and particularly in oil and gas. In contrast to conventional methods, microfluidics can provide direct visualization of pore-scale dynamics during extraction processes and generate fast and accurate phase data for the fluids under reservoir-relevant temperatures, pressures, and scales. In this thesis, a new generation of high-temperature and high-pressure microfluidic and nanofluidic devices are developed for the study of solvent-based unconventional resources recovery methods. For bitumen extraction, both pure solvent and solvent-steam co-injection methods are studied using a glass-glass micromodel at reservoir relevant temperature and pressure. To investigate asphaltene precipitation and deposition resulting from solvent-bitumen interactions during solvent-based extraction processes, a silicon-glass microfluidic device is developed. To improve the practicality of silicon-glass microfluidic based methods for such applications, a new approach was developed whereby the device yield per wafer was increased by one to two orders of magnitude, rendering these otherwise expensive microfluidic systems effectively disposable. This new approach was tested in application to immiscible flooding for heavy oil production, and a CO2 capture fluid with successful tests at pressures up to 80 bar. Lastly, these methods were extended to the nanoscale and applied to measure the first contact miscibility pressure of CO2 and oil under nano-confinement for enhanced oil recovery implications in tight and shale oil reservoirs. Collectively, these contributions provide insight into solvent-based recovery methods for unconventional resources by levering the precision, robustness, and optical access provided by microfluidics and nanofluidics.

Download or read book The Application of Microfluidics in the Study of Multiphase Flow and Transport in Porous Media of Improved Hydrocarbon Recovery Methods written by Yujing Du and published by . This book was released on 2021 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamental investigation of the underlying physics in multiphase flow and transport phenomena in porous media is crucial for many engineering processes, including environmental remediation, geological sequestration, and improved hydrocarbon recovery. Microfluidics are widely used to provide direct, in-time visualization of multiphase flow behavior at the pore-scale and sometimes extend to the representative elementary volumes (REV) scale. Qualitative and quantitative analysis are obtained from microfluidic experiments and are used for mechanisms interpretations. In this work, microfluidics and micromodels are designed to explore fundamental mechanisms in several enhanced/improved oil recovery processes by performing systematic experiments. First, a study of the low salinity effects in improved oil recovery by microfluidics experiments is presented which explains a type of low-salinity effect with delayed oil recovery and without the presence of clay. Experiments were performed from single-pore microfluidics to a REV scale reservoir-on-a-chip model. A time-dependent, oil-water interaction controlled by diffusion was proposed based on the pore-scale observations. Second, the time-dependent behaviors and the role of surfactant during the low salinity waterflood is further investigated by systematic experiments in a 2.5D, inch-long micromodel using mineral oils with different surfactant concentrations and water with different salinities. It is found that the low salinity effects are significant when the surfactant concentration is sufficiently high. The surfactant also dominates the time-dependent behaviors, where higher surfactant concentration leads to shorter delay time. Third, three inch-long “reservoir-on-a-chip” micromodels were utilized to probe the impacts of the microfracture connectivity on the displacement efficiency and sweep patterns when the mobility ratio is unfavorable and the displacement is unstable. It was observed the presence of microfractures do not necessarily improve the displacement efficiency, but the microfracture connectivity, capillary number and wettability altogether impact on the displacement patterns and the ultimate recovery. Last, the role of viscoelasticity’s effects in reducing residual oil saturation is investigated by performing microfluidic experiments in foot-long (30 cm), heterogeneous glass micromodels (“coreflood-on-a-chip”). Significant redistribution and reconnection of residual ganglia occur due to viscoelasticity induced instabilities during high-viscoelasticity polymer floods, which results in residual ganglia remobilization that ultimately reduces residual saturation

Download or read book Investigation of Two phase Microchannel Flow and Phase Equilibria in Micro Cells for Applications to Enhanced Oil Recovery written by Hooman Foroughi and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Enhanced Oil Recovery written by Patrizio Raffa and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-07-22 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims at presenting, describing, and summarizing the latest advances in polymer flooding regarding the chemical synthesis of the EOR agents and the numerical simulation of compositional models in porous media, including a description of the possible applications of nanotechnology acting as a booster of traditional chemical EOR processes. A large part of the world economy depends nowadays on non-renewable energy sources, most of them of fossil origin. Though the search for and the development of newer, greener, and more sustainable sources have been going on for the last decades, humanity is still fossil-fuel dependent. Primary and secondary oil recovery techniques merely produce up to a half of the Original Oil In Place. Enhanced Oil Recovery (EOR) processes are aimed at further increasing this value. Among these, chemical EOR techniques (including polymer flooding) present a great potential in low- and medium-viscosity oilfields. • Describes recent advances in chemical enhanced oil recovery. • Contains detailed description of polymer flooding and nanotechnology as promising boosting tools for EOR. • Includes both experimental and theoretical studies. About the Authors Patrizio Raffa is Assistant Professor at the University of Groningen. He focuses on design and synthesis of new polymeric materials optimized for industrial applications such as EOR, coatings and smart materials. He (co)authored about 40 articles in peer reviewed journals. Pablo Druetta works as lecturer at the University of Groningen (RUG) and as engineering consultant. He received his Ph.D. from RUG in 2018 and has been teaching at a graduate level for 15 years. His research focus lies on computational fluid dynamics (CFD).

Download or read book Proceedings of the International Field Exploration and Development Conference 2023 written by Jia'en Lin and published by Springer Nature. This book was released on with total page 965 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Polymer Enhanced Oil Recovery EOR in Microfluidic Devices that Resemble Porous Media written by Jonas Wegner and published by . This book was released on 2015 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Enhanced Oil Recovery Field Case Studies written by James J.Sheng and published by Gulf Professional Publishing. This book was released on 2013-04-10 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enhanced Oil Recovery Field Case Studies bridges the gap between theory and practice in a range of real-world EOR settings. Areas covered include steam and polymer flooding, use of foam, in situ combustion, microorganisms, "smart water"-based EOR in carbonates and sandstones, and many more. Oil industry professionals know that the key to a successful enhanced oil recovery project lies in anticipating the differences between plans and the realities found in the field. This book aids that effort, providing valuable case studies from more than 250 EOR pilot and field applications in a variety of oil fields. The case studies cover practical problems, underlying theoretical and modeling methods, operational parameters, solutions and sensitivity studies, and performance optimization strategies, benefitting academicians and oil company practitioners alike. Strikes an ideal balance between theory and practice Focuses on practical problems, underlying theoretical and modeling methods, and operational parameters Designed for technical professionals, covering the fundamental as well as the advanced aspects of EOR

Download or read book The Study of Fluids Flow through Porous Media Using Microfluidic Devices written by Feng Guo and published by . This book was released on 2019 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research is implementing glass-fabricated microfluidic devices to study problems involving fluid flow through porous media problems, including; foam flooding in enhanced oil recovery (EOR), immiscible displacement instability, and CO2 sequestration in a deep saline aquifer. The relatively low viscosity and density of CO2 causes severe fingering, gravity override and high mobility through high permeability layers or fractures, which leads to low sweep efficiency in porous media. CO2 foam flooding stabilized by nanoparticles (NPs) is able to significantly increase CO2 injectant apparent viscosity thereby reducing its mobility and increasing the volumetric sweep efficiency in EOR and sequestration. A deep understanding of flow behaviors and displacement instabilities of CO2 (foam and gas) in porous media enhances the ability to predict oil recovery and CO2 storage and inform reservoir engineering decisions. This dissertation provides details of experimental work performed in NP-stabilized CO2 foam flooding, immiscible displacements and CO2 sequestration using different fabricated microfluidic devices. Several novel NPs candidates are investigated and evaluated in terms of foam stability and oil recovery. The flow behavior of CO2 foam and the resulting incremental oil recovery are investigated in both homogeneous and heterogeneous porous media. Flow instabilities and phase diagrams with boundaries of three flow regimes of immiscible displacement are investigated. In addition, the CO2 gas/foam storage capacity and efficiency in a deep saline aquifer are studied. In order to study NP-stabilized CO2 foam flooding in porous media, a homogeneous microfluidic device is fabricated in which the pore network is based on a 2D representation of a sample of Berea sandstone. Foam properties of NPs stabilized CO2 foam using silica (Si), nanoclay, fly ash and iron oxide (IO) and the resulting improvement in oil recovery are investigated using a series of modified bulk foam tests and microfluidic experiments. Results show that the size and/or size distribution, shape, and surface charge of the particles are influential parameters governing the foam stability and formability which have a direct relationship with oil recovery performance. The displacement observation shows the silica and fly ash NPs assisted by surfactant mixture (Alpha-Olefin Sulfonate (AOS)-Lauramidopropyl Betaine (LAPB)) generated stable foams and resulted in high ultimate oil recoveries (over 90%). Even though IO-surfactant mixtures generate foams with relatively inferior stability characteristics and ultimate recovery, approximately three quarters of the IO NPs are recovered once exposed to a magnetic field. Recovered IO NPs have the potential to be reused in EOR process. The implement of by-product fly ash and recyclable IO NP provides potential advantage of NPs on a commercial scale in EOR processes. A heterogeneous microfluidic device is fabricated, which consisted of a centrally located low permeability zone and two high permeability zones on its sides, to study flow behaviors of CO2 foam and its impact on mobility control in displacing oil in a heterogeneous porous medium. The results show that foam is able to mobilize and recover oil trapped in the low permeability zone by increasing the resistance to flow in the high permeability zones and diverting the surfactant solution into the adjacent low-permeability zone. Foam remains gas-rich in the high permeability zones and solvent-rich in the low permeability zone throughout the experiments. The observed displacement dynamics are explained by characterizing channel geometries (trapezoid) and calculating capillary entry pressure values for various fluids and zones of the medium. Flow behaviors and instabilities in two phase immiscible displacements are addressed using a glass microfluidic device. A series of microfluidic device immiscible displacement experiments are conducted across a range of capillary numbers (Ca) of 1E-4 to 9E-8 and viscosity ratio (M) from 1E-4 to 13.6E3. The microfluidic device features a water-wet porous medium based on a two-dimensional representation of a Berea sandstone; the displacement processes are captured using a high-resolution camera that allows visualization of the entire domain, while being able to resolve features as small as 10 μm. The study reports a correlation between fractal dimension of displacement fronts and displacement front patterns in the porous medium. Three flow regimes with boundaries are mapped on a two-dimensional parameter space (log M and log Ca), and phase diagrams proposed in the literature are superimposed for comparison. Results suggest that the transition regime may occupy a much larger region of the flow regime diagram than is suggested in recent literature. This two-phase immiscible displacement study not only extended works of previous studies using an advanced glass microfluidic device but also it may also help understand macroscopic processes at the continuum scale and provide insights into designing engineered porous media such as exchange columns and membranes with respect to desired immiscible displacement behaviors. In order to study CO2 sequestration in an aquifer with multiple variables, namely, fluids’ interfacial tension, injection rate, viscosity and the characteristics of the porous medium, a custom microfluidic device is developed. The pore network is based on a mosaic of Scanning Electron Microscopy (SEM) images of a thin section of the Lower Cretaceous Washita-Fredericksburg, which is a saline aquifer-bearing formation in east-central Mississippi, USA. The study investigates the effects of those variables on CO2 gas and foam injection into the brine-saturated porous medium. The results suggest that higher injection rates and CO2 foam injection are able to improve CO2 saturation, and therefore storage, in the microfluidic device; ultimate CO2 saturation from foam injection are approximately 20%-40% higher compared to results from gas injection. Thus, CO2 foam injection is a promising approach to reduce CO2 mobility and optimize the CO2 storage capacity in saline aquifer formations. In addition, legislation of CO2 sequestration and potential advantages of using CO2 foam for geological CO2 sequestration in the aforementioned saline aquifer, which is currently under study for commercial-scale CO2 storage, are also discussed. This research study shows advantages of using glass fabricated microfluidic devices with complex configurations to study several flow-through porous media problems. It enables visualization of fluids distributions and displacement fronts inside various porous media, therefore, providing insights into microscale displacement processes help elucidate fundamental mechanisms responsible for the observed flow behaviors.

Download or read book Application of Nanoparticles for Oil Recovery written by Ole Torsaeter and published by . This book was released on 2021 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oil industry has, in the last decade, seen successful applications of nanotechnology in completion systems, completion fluids, drilling fluids, and in improvements of well constructions, equipment, and procedures. However, very few full field applications of nanoparticles as an additive to injection fluids for enhanced oil recovery (EOR) have been reported. Many types of chemical enhanced oil recovery methods have been used in fields all over the world for many decades and have resulted in higher recovery, but the projects have very often not been economic. Therefore, the oil industry is searching for a more efficient enhanced oil recovery method. Based on the success of nanotechnology in various areas of the oil industry, nanoparticles have been extensively studied as an additive in injection fluids for EOR. This book includes a selection of research articles on the use of nanoparticles for EOR application. The articles are discussing nanoparticles as additive in waterflooding and surfactant flooding, stability and wettability alteration ability of nanoparticles and nanoparticle stabilized foam for CO2-EOR. The book also includes articles on nanoparticles as an additive in biopolymer flooding and studies on the use of nanocellulose as a method to increase the viscosity of injection water. Mathematical models of the injection of nanoparticle-polymer solutions are also presented.

Download or read book Experimental Investigation of Nanoparticle Enhanced Oil Recovery Techniques Using Micromodels written by Ayub Khezrnejad and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology has found widespread application in a diverse range of industries. Researchers are now investigating whether nanotechnology can be applied to enhance oil recovery. The goal of enhanced oil recovery is to manipulate the fluid-fluid properties (interfacial tension, viscosity), and fluid-rock properties (contact angle, relative permeability) to improve pore scale recovery efficiency. In this study, nanofluids were prepared and injected into micromodels to study their effectiveness on oil recovery. Silicon oxide and aluminum oxide nanoparticles were used. Nanofluid viscosity and interfacial tension between nanofluid and oil was measured and modeled. Response Surface Methodology (RSM) was used to investigate the effect of the factors and their interactions. Fluid characterization data shows that nanoparticles are effective in both interfacial tension reduction and viscosity enhancement. The results from the micromodel studies indicate that adding a small amount of nanoparticles to the brine can enhance oil recovery by approximately 10 % - 20 %.

Download or read book Microfluidics and Nanofluidics for Unconventional Resources in Micropores and Nanopores written by Lining Xu and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unconventional resources play a crucial role in meeting the current global energy demand, however, production from these formations is challenging. The challenge mainly stems from either the extreme fluid properties (oil sands) or extreme rock properties (shale and tight sandstone). Primary production from unconventional reservoirs is very low which motivates testing and developing recovery strategies to improve the reservoir production. Micro/nanofluidic technologies have shown to be a promising tool to quantify the pore-scale recovery efficiency of different methods with a tight control over the operating conditions, i.e. pressure, temperature, and composition. In this work, we designed and developed two distinct micro/nanofluidic platforms to test some of the recovery methods for both bitumen and tight oil systems. This work highlights the unique potential of microfluidic and nanofluidic methods in resolving the pore-scale behavior of enhanced oil recovery processes under relevant reservoir conditions.

Download or read book Droplet Microfluidics for Additive Screening in Enhanced Oil Recovery written by Pushan Lele and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enhanced oil recovery is a set of methods used to increase the productivity of a reservoir after it is not possible to economically produce oil using hydrostatic reservoir pressure, artificial lift devices, waterfloods or gas floods. Droplet microfluidics, the study and utilization of ordered multiphase flows in closed microchannels, is predominantly used for biological or chemical reaction screening and particle fabrication. This thesis focuses on using droplet microfluidics to inform enhanced oil recovery. A platform was developed to assess the effect of a set of additives on droplet deformation. Droplets were found to become more deformable with an increase in pH and less deformable with an increase in ionic strength and salinity. These trends agree with behaviour reported in the literature.