This study basically focuses on numerical simulation of shale gas flow. Adsorption effect of organic pore on shale gas is under the influence of many factors including pore shape, 0diameter, maturity of organic matter. Fracman hydraulic fracture simulation answers key shale gas questions july 12, 2017 for ultralow permeability rocks like shale, production of gas or oil is all about the fractures both induced and naturally occurring. Request more info unconventional reservoirs frequently have nanodarcy permeabilities, complex fracture networks from natural or induced fractures, and adsorbed gas in organic materials in the rock matrix.
Use valuable and accurate information for continuous operations. Modeling and simulation of gas flow behavior in shale. However, the gas generation rate reached the maximum value of around 75 mlg toc when the maturity of the yanchang shale ro was 1. Shale gas reservoirs sgrs are organicrich formations, which serve as both reservoir and source rock together. The thermal simulation experiments on hydrocarbon generation of the barnett shale samples toc 4. Integrated seismictosimulation workflow identifies. Safe, efficient, and profitable development of shale natural gas resources depends on achieving a clear understanding of the role of natural fractures in shale gas production.
From microseismic to simulation a horn river case study o joint paper with cmg and nexen iptc14940 evaluation in data rich fayatteville shale gas plays integrating physicsbased reservoir simulations with data driven approaches for uncertainty reduction. From microseismic to simulation a horn river case study o joint paper with cmg and nexen iptc14940 evaluation in data rich fayatteville shale gas plays integrating physicsbased reservoir simulations with data driven approaches for. Planar fracture complex fracture networks creating fractures from microseismic data using builder this course will teach attendees how to effectively simulate an unconventional reservoir using gem and successfully apply uncertainty. Natural fracturing is critical to enhancing stimulation treatment design and optimizing well performance. Numerical simulation on multistage fractured horizontal wells in. Prediction of production performance of refractured shale. Modeling complexities of natural fracturing key in gas shales.
Molecular simulation of shale gas adsorption in organic. Fracman hydraulic fracture simulation answers key shale gas. Simulate coal bed methane, shale gas, shale oil, and naturally fractured reservoirs. The inlet shale gas is fed into the absorption column, t100, at a flow rate of 171,200 kghr, at 6900 kpa psi and around 50c transform software and services. Ansys cfd for oil and gas and structural mechanics software for oil and gas production use advanced simulation and analytical solutions to aid in studying thermal profiles, structural integrity, slugging, and. Reservoir modeling in shalegas reservoirs computer modelling. Process design, simulation and integration of dimethyl ether. Use of process simulation for gas compression, cryogenics, gas liquefaction, gas. Modeling and simulation of gas flow behavior in shale reservoirs. This paper discusses a workflow used in developing a numerical shale gas model for nexens horn river shale gas reservoir. Simulation provides the means to both model gas production and produced water.
Development of shale gas has transformed the energy outlook of us in the past decade. They proposed an efficient reservoirsimulation approach by integrating the commercial simulator, economic model, design of experiment, and responsesurface methodology with a global optimization search engine. Forecasting production in shale gas reservoirs a better. Shale is a growing prospect in this world with decreasing conventional sources of fossil fuel. Process design, simulation and integration of dimethyl ether dme production from shale gas by direct and indirect methods. Shale ior llc is now a fullservice provider for ior in the unconventional arena. D ue to the differe nces of p ore sizes of those two media, gas flo w mechanisms are different. Much research has been conducted on the propagation characteristics of ultrasonic.
Shale gas and tight oil reservoir simulation delivers the latest research and applications used to better manage and interpret simulating production from shale gas and tight oil reservoirs. Learn how to apply gems advanced functionality to model shale andor tight oil and gas. Optional gas adsorption model can be added to simulate shale gas reservoirs. For some time, it has been understood that the acoustic characteristics of rocks are complicated by stratification. Modelling of shale, tight oil and gas reservoirs training course for reservoir simulation engineers and other oil and gas professionals. Figuring out the flow mechanism is of great significance for. Integrated seismictosimulation workflow identifies highest. Add powerful applications such as network simulation, forecasting, transportation management and gas quality tracking. Prediction of production performance of refractured shale gas. Reservoir modeling in shalegas reservoirs the exploitation of unconventional. Two challenges exist for modeling gas transport in shale.
An opensource framework for generic numerical modeling of unconventional shale and tight gas reservoirs. The ability to use simulation to investigate the sensitivity of production to reservoir parameters is particularly important for reservoirs such as shale gas reservoirs where traditional core measurements are difficult or impractical to perform. Presented is a practical and systematic approach to using surveillance data. Credible forecasting and reliable risk management demand simulation software. Unconventional reservoirs frequently have nano darcy. Accurate simulation of shalegas reservoirs onepetro. Shale gas has experienced considerable growth in some countries, including. Thus, it is apparent from the results of the hydrocarbon generation simulation experiments of shale that the gas generation capacity of the yanchang shale is greater than that of us barnett shale. Nanoscale considerations for shale gas flow simulation. The complexity of the gas transport mechanism in microfractures and nanopores is caused by the feature of multiscale and multiphysics. Simulation system model building and structural optimization. We are using advanced technology developed and refined over 60 years to safely unlock resources of natural gas trapped tightly inside dense rock in extremely fine pores. Therefore, a production simulation model based on coupled fluid flow and geomechanics in triple continuum including kerogen, an inorganic matrix, and a fracture network is proposed considering the multiscale flow characteristics of shale gas, the induced stress of fracture opening, and the pore. Ansys cfd for oil and gas and structural mechanics software for oil and gas production use advanced simulation and analytical solutions to aid in studying thermal profiles, structural integrity, slugging, and hydrate and wax formation.
Simulation in oil and gas industry is at the heart of what we do at broadtech engineering. Forecasting production in shale gas reservoirs a better assessment of reserves occidental petroleum corporation gcs reservoir study group anadarko petroleum convention center 10th may krunal joshi, reservoir engineer forecasting production in shale gas reservoirs a better assessment of reserves. The simulation results indicate that the scheme of oil shale comprehensive utilization has several advantages over oil shale retorting. However, the gas generation rate reached the maximum value of around 75 mlg toc when the maturity of the yanchang. Practical solution apply cmgs industryleading hydraulic fracture simulation workflow to model shale or tight oilgas reservoirs. The compositional reservoir simulation model incorporates as much.
Secondly, the seepage mathematical model is solved by using finite difference, and the results are compared with commercial software. Collaborate with schlumberger petrotechnical experts to employ a comprehensive seismicto. Model entire lifecycle of unconventional reservoirs only hydraulic fracturing workflow that models single and multiple wells design, evaluate, and optimize field development planning quickly achieve accurate and reliable eur forecasts simulate and analyze. Model entire lifecycle of unconventional reservoirs only hydraulic fracturing. Unconventional oil, gas and liquids rich reservoirs shale gas. Process design, simulation and integration of dimethyl. Maximize performance in a major gas shale play with widely variable reservoir quality. Gas desorption and diffusion processes with instant and timedependent sorption options exercise 3. Shale ior llc is now a fullservice provider for ior in the unconventional arena and covers all aspects of development with experts in all disciplines. Gas is stored as free gas in natural fractures and matrix pore structure, and as. Indirect and direct process simulation of commercial dme plant was carried out by aspen plus.
In recent years, with breakthroughs in exploration and development of shale gas, experts are increasingly involved in studying physical data of rock in shale strata vernik et al. Numerical simulation of shale gas multiscale seepage. Ansys cfd for oil and gas and structural mechanics software for oil and gas production use advanced simulation and analytical solutions. Coupling numerical simulation and machine learning to model shale gas production at different time resolutions. A dual porosity dual permeability shale gas reservoir simulation model was constructed to simulate gas production from shale reservoirs with multistage hydraulic fracturing horizontal well with considering multiple flow mechanisms, including. Todays technology helps us reduce our environmental footprint, cut down the number of drilled wells, and lower costs. Nov 11, 2014 spe references csugspe 1pp shale gas modeling workflow. Subsequently, the impacts of the kerogen system, transfer model, kerogen permeability, inorganic matrix permeability, fracture permeability and langmuir parameters on the shale gas reservoir performance were examined.
From microseismic to simulation a horn river case study ojoint paper with cmg and nexen iptc. Add powerful applications such as network simulation. Request more info unconventional reservoirs frequently have nanodarcy permeabilities, complex fracture networks from. For ultralow permeability rocks like shale, production of gas or oil is all about the fractures both induced and. Adsorption effect of organic pore on shale gas is under the influence of many factors including pore shape, 0diameter, maturity of organic matter, category of organic matter and water saturation 21, however, the paper, based on basic research, builds cnt model to represent organic pore under the ideal condition for the first time. Shale gas and tight oil reservoir simulation 1st edition. Therefore, the biggest limitation of dual media model in shale gas simulation is the. We are an engineering consulting firm which delivers worldclass and advanced engineering simulation and cfd consulting services via our team of experienced and professional engineering simulation experts who works collaboratively with oil and gas clients and energy companies in singapore and other. The shale gas feedstock was taken from one of the wells in barnett shale play. Oil and natural gas research the portfolio is advancing technologies to improve hydrocarbon recovery efficiency, reduce the operational risks of production, improve the performance of our nations pipeline infrastructure, and characterize resources in emerging basins and plays. Numerical simulation of shale gas multiscale seepage mechanism. Numerical simulation of ultrasonic wave transmission. Thermal simulation an overview sciencedirect topics. Resfrac hydraulic fracturing and reservoir simulation.
Fracman hydraulic fracture simulation answers key shale gas questions. This semianalytical model is verified with a commercial software and an. This model mainly includes the movement of shale gas from tight. Numerical simulation of the environmental impact of. Production simulation is an important method to evaluate the stimulation effect of refracturing. Study of gas production from shale reservoirs with multi. We drill wells in different directions from a central location that penetrate the reservoir vertically, often in an sshape, or horizontally. For better understanding of the interaction between shale and np based drilling fluid based on previous pressure transmission tests ptts on atoka shale samples, this paper reports the numerical simulation findings of wellbore stability in the presence of np based drilling fluid, using the 2d fluidsolid coupling model in flac3d software.
To be able to capture the complex nature of shale gas reservoirs, different storage and flow mechanisms must be taken into. Subsequently, the impacts of the kerogen system, transfer model, kerogen permeability. Starting with basic fundamentals, the book then includes real field data that will not only generate reliable reserve estimation, but also predict the. Software packages cover a wide range of possibilities and may provide support in finding solutions in the exploitation, evaluation, field development planning, production of unconventional assets. Spe references csugspe 1pp shale gas modeling workflow. The composition of the inlet shale is shown in table 1 of the appendix a american petroleum institute, 2011. Identify and model different hydraulic fracture methods, including. Eclipse simulation of naturally fractured reservoirs. Triplecontinuum modeling of shale gas reservoirs considering. Simulation is a powerful tool for well and refinery optimization, pipeline network design, storage management, and many other challenges in the oil and gas industries. A fully three dimensional semianalytical model for shale gas. Coupling numerical simulation and machine learning to model. Export a simulation case with multiple porosity for shale gas. Modelling of shale, tight oil and gas reservoirs computer.
Perform sensitivity analyses and history matches for a tight reservoir using cmost. In contrast, tight and shale gas does not flow easily and resources are often spread over a much larger area, making it harder to access. Collaborate with schlumberger petrotechnical experts to employ a comprehensive seismictosimulation workflow for constructing and calibrating a 3d dualporosity reservoir model that integrates core, log, seismic, and production data to identify the key production drivers of matrix. Open source software for discrete fracture network engineering, two and three dimensional applications.
The ability to use simulation to investigate the sensitivity of production to reservoir parameters is particularly important for reservoirs such as shale gas reservoirs where traditional core measurements. This toolset is specifically designed to improve efficiency for the fast pace of land development. Yu and sepehrnoori 2014 have used cmg software to optimize shale gas production 6, 7. We are an engineering consulting firm which delivers worldclass and advanced engineering simulation and cfd. Study of gas production from shale reservoirs with multistage. The petrel shale suite module is designed for companies working onshore planning and drilling horizontal wells. Development of a shale oil eor project begins with the development of an accurate compositional reservoir simulation model. From microseismic to simulation a horn river case study o joint paper with cmg and nexen iptc14940 evaluation in. Unconventional reservoirs frequently have nanodarcy. The past two decades have borne remarkable progress in our understanding of flow mechanisms and numerical simulation approaches of shale gas reservoir, with much larger number of publications in.
In this paper, an apparent permeability model which covers continue, slip, transition, and molecular flow and geomechanical effect was presented. In order to utilize numerical simulation as a tool in optimizing well design, one needs to develop a model that. Fracman hydraulic fracture simulation answers key shale. Resfrac software is the only commercial threedimensional, fully compositional simulator to seamlessly couple hydraulic fracturing, wellbore, geomechanical, and reservoir simulation. Shalestight oil reservoir simulation modelling workflows. Although every shale formation is somewhat different, there can be significant variations in. From microseismic to simulation a horn river case study. Therefore, a production simulation model based on coupled fluid flow and geomechanics in triple. Pdf improved numerical simulation for shale gas reservoirs. George is a graduate of university of wyoming with a b. Figuring out the flow mechanism is of great significance for the efficient development of shale gas.
Modeling complexities of natural fracturing key in gas. This pap er distinguishes gas flo w in shale gas b y flowing media. Gem is the worlds leading reservoir simulation software for compositional, chemical and unconventional reservoir modelling. Shale reservoir medium consists of organic matter kerogen, inorganic matter, natural fractures, and hydraulic fractures. Unconventional reservoirs frequently have nanodarcy permeabilities, complex fracture networks from natural or induced fractures, and adsorbed gas in organic materials in the rock matrix. With the growth in demand for natural gas, there is impending need for the development of the. Resfracs unique modeling capability and expertise provide industryleading insight into the development of shale resources. They proposed an efficient reservoirsimulation approach by integrating the commercial simulator, economic model.
Easy to use and couple with economics software forecasting production in shale gas reservoirs a better assessment of reserves. Run simulation models for primary and enhanced cbm recovery using petrel re exercise 2. Engineering organization use proven ansys engineering simulation for oil and gas capabilities to optimize production equipment for flow control, separation, water recycling and heat generation. From microseismic to simulation a horn river case study ojoint paper with cmg and nexen iptc14940 evaluation in data rich fayatteville shale gas plays integrating physicsbased reservoir simulations with data driven approaches for uncertainty reduction oby.
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