The composition of the inlet shale is shown in table 1 of the appendix a american petroleum institute, 2011. 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. Shale gas reservoirs sgrs are organicrich formations, which serve as both reservoir and source rock together. Numerical simulation of ultrasonic wave transmission. Unconventional reservoirs frequently have nanodarcy permeabilities, complex fracture networks from natural or induced fractures, and adsorbed gas in organic materials in the rock matrix. Shale gas has experienced considerable growth in some countries, including. We are an engineering consulting firm which delivers worldclass and advanced engineering simulation and cfd. 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. Integrated seismictosimulation workflow identifies. Process design, simulation and integration of dimethyl ether dme production from shale gas by direct and indirect methods.
Unconventional reservoirs frequently have nanodarcy. Export a simulation case with multiple porosity for shale gas. Shale is a growing prospect in this world with decreasing conventional sources of fossil fuel. 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. Integrated seismictosimulation workflow identifies highest. Subsequently, the impacts of the kerogen system, transfer model, kerogen permeability. Yu and sepehrnoori 2014 have used cmg software to optimize shale gas production 6, 7. 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. Modelling of shale, tight oil and gas reservoirs training course for reservoir simulation engineers and other oil and gas professionals. Identify and model different hydraulic fracture methods, including. Fracman hydraulic fracture simulation answers key shale gas. This paper discusses a workflow used in developing a numerical shale gas model for nexens horn river shale gas reservoir.
Study of gas production from shale reservoirs with multi. Gem is the worlds leading reservoir simulation software for compositional, chemical and unconventional reservoir modelling. Model entire lifecycle of unconventional reservoirs only hydraulic fracturing. Numerical simulation of the environmental impact of. Add powerful applications such as network simulation, forecasting, transportation management and gas quality tracking. 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. This semianalytical model is verified with a commercial software and an. Next, a finite element simulation software, comsol multiphysics, was used to solve the mathematical model. Nanoscale considerations for shale gas flow simulation. Fracman hydraulic fracture simulation answers key shale gas questions. 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. Modeling and simulation of gas flow behavior in shale.
Shale gas and tight oil reservoir simulation 1st edition. Thermal simulation an overview sciencedirect topics. Resfrac software is the only commercial threedimensional, fully compositional simulator to seamlessly couple hydraulic fracturing, wellbore, geomechanical, and reservoir simulation. 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. The simulation results indicate that the scheme of oil shale comprehensive utilization has several advantages over oil shale retorting or combustion merely, and about 0. Modeling complexities of natural fracturing key in gas shales. Nov 11, 2014 spe references csugspe 1pp shale gas modeling workflow. This model mainly includes the movement of shale gas from tight. 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. Unconventional oil, gas and liquids rich reservoirs shale gas. We drill wells in different directions from a central location that penetrate the reservoir vertically, often in an sshape, or horizontally.
Todays technology helps us reduce our environmental footprint, cut down the number of drilled wells, and lower costs. Fracman hydraulic fracture simulation answers key shale. 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. 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. 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. 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. Maximize performance in a major gas shale play with widely variable reservoir quality. The compositional reservoir simulation model incorporates as much geological, geophysical, petrophysical, reservoir fluids and well completion and production data as possible, in order to develop an accurate mathematical representation of the reservoir and wells. Prediction of production performance of refractured shale gas. 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.
Triplecontinuum modeling of shale gas reservoirs considering. Starting with basic fundamentals, the book then includes real field data that will not only generate reliable reserve estimation, but also predict the. Molecular simulation of shale gas adsorption in organic. 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.
The compositional reservoir simulation model incorporates as much. Request more info unconventional reservoirs frequently have nanodarcy permeabilities, complex fracture networks from. The thermal simulation experiments on hydrocarbon generation of the barnett shale samples toc 4. However, the gas generation rate reached the maximum value of around 75 mlg toc when the maturity of the yanchang. Eclipse simulation of naturally fractured reservoirs. Adsorption effect of organic pore on shale gas is under the influence of many factors including pore shape, 0diameter, maturity of organic matter. Add powerful applications such as network simulation. The dual media model is widely used in various commercial software. Modeling and simulation of gas flow behavior in shale reservoirs. In this paper, an apparent permeability model which covers continue, slip, transition, and molecular flow and geomechanical effect was presented.
Run simulation models for primary and enhanced cbm recovery using petrel re exercise 2. 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. Numerical simulation on multistage fractured horizontal wells in. 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. They proposed an efficient reservoirsimulation approach by integrating the commercial simulator, economic model. Credible forecasting and reliable risk management demand simulation software. Collaborate with schlumberger petrotechnical experts to employ a comprehensive seismicto. With the growth in demand for natural gas, there is impending need for the development of the.
The shale gas feedstock was taken from one of the wells in barnett shale play. Presented is a practical and systematic approach to using surveillance data. 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. 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. 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.
Figuring out the flow mechanism is of great significance for. Optional gas adsorption model can be added to simulate shale gas reservoirs. Unconventional reservoirs frequently have nano darcy. For ultralow permeability rocks like shale, production of gas or oil is all about the fractures both induced and.
Shale ior llc is now a fullservice provider for ior in the unconventional arena. Simulate coal bed methane, shale gas, shale oil, and naturally fractured reservoirs. Practical solution apply cmgs industryleading hydraulic fracture simulation workflow to model shale or tight oilgas reservoirs. Open source software for discrete fracture network engineering, two and three dimensional applications. From microseismic to simulation a horn river case study o joint paper with cmg and nexen iptc14940 evaluation in. Natural fracturing is critical to enhancing stimulation treatment design and optimizing well performance.
Resfracs unique modeling capability and expertise provide industryleading insight into the development of shale resources. 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. 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. Use valuable and accurate information for continuous operations. Simulation system model building and structural optimization. This study basically focuses on numerical simulation of shale gas flow. Process design, simulation and integration of dimethyl ether. The petrel shale suite module is designed for companies working onshore planning and drilling horizontal wells. Shale reservoir medium consists of organic matter kerogen, inorganic matter, natural fractures, and hydraulic fractures.
Reservoir modeling in shalegas reservoirs computer modelling. 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. 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. 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. Indirect and direct process simulation of commercial dme plant was carried out by aspen plus. Development of shale gas has transformed the energy outlook of us in the past decade. Learn how to apply gems advanced functionality to model shale andor tight oil and gas. Although every shale formation is somewhat different, there can be significant variations in. 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. Coupling numerical simulation and machine learning to model shale gas production at different time resolutions. Perform sensitivity analyses and history matches for a tight reservoir using cmost. 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. 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.
Prediction of production performance of refractured shale. 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. Study of gas production from shale reservoirs with multistage. 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 mechanism. An opensource framework for generic numerical modeling of unconventional shale and tight gas reservoirs. 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. Pdf improved numerical simulation for shale gas reservoirs. This toolset is specifically designed to improve efficiency for the fast pace of land development. The complexity of the gas transport mechanism in microfractures and nanopores is caused by the feature of multiscale and multiphysics.
This pap er distinguishes gas flo w in shale gas b y flowing media. However, the gas generation rate reached the maximum value of around 75 mlg toc when the maturity of the yanchang shale ro was 1. Easy to use and couple with economics software forecasting production in shale gas reservoirs a better assessment of reserves. To be able to capture the complex nature of shale gas reservoirs, different storage and flow mechanisms must be taken into. A fully three dimensional semianalytical model for shale gas. From microseismic to simulation a horn river case study ojoint paper with cmg and nexen iptc. For some time, it has been understood that the acoustic characteristics of rocks are complicated by stratification. Process design, simulation and integration of dimethyl. 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. Two challenges exist for modeling gas transport in shale. Simulation in oil and gas industry is at the heart of what we do at broadtech engineering. Shalestight oil reservoir simulation modelling workflows. Resfrac hydraulic fracturing and reservoir simulation.
From microseismic to simulation a horn river case study. Forecasting production in shale gas reservoirs a better. Gas desorption and diffusion processes with instant and timedependent sorption options exercise 3. Spe references csugspe 1pp shale gas modeling workflow. George is a graduate of university of wyoming with a b. Modeling complexities of natural fracturing key in gas. Secondly, the seepage mathematical model is solved by using finite difference, and the results are compared with commercial software. Coupling numerical simulation and machine learning to. Coupling numerical simulation and machine learning to model. Therefore, a production simulation model based on coupled fluid flow and geomechanics in triple. Production simulation is an important method to evaluate the stimulation effect of refracturing. Reservoir modeling in shalegas reservoirs the exploitation of unconventional. Figuring out the flow mechanism is of great significance for the efficient development of shale gas.
Accurate simulation of shalegas reservoirs onepetro. The simulation results indicate that the scheme of oil shale comprehensive utilization has several advantages over oil shale retorting. Simulation provides the means to both model gas production and produced water. 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. Modelling of shale, tight oil and gas reservoirs computer.
53 336 805 1008 663 481 1194 1208 610 531 505 172 1321 1265 1337 1080 1097 615 822 974 828 1301 1552 1256 745 1179 304 1527 33 1528 793 1291 991 1367 996 637 653 1497 1308 208