This chapter is from the 1987 edition of the petroleum engineeringhandbook. Shale and tight reservoir simulations along with complex fractures are still a new phenomenon and there is a lack of basic understanding on the numerical approaches in order to properly analyze the simulation results. In naturally fractured tight gas reservoirs, gas is mainly stored in the rock. There are still many challenges facing reservoir engineers as the industry focuses on more complex unconventional reservoirs. New fortran codes have been developed to generate fracture networks, to simulate reservoir drainagerecharge, and to plot the fracture networks and reservoir pressures. Modeling gas adsorption in marcellus shale using langmuir and bet isotherms. However, calculation of hydrocarboninplace of a gas condensate reservoir is more complex because of the change from a single gaseous phase in the reservoir to. In general this book provides comprehensive information about the key exploration, development and optimization concepts required for shale gas reservoirs. Reservoir simulation of dualporosity and dualpermeability systems and.
Shale gas and tight oil reservoir simulation 1st edition. To access the 2007 edition of the handbook, visit the speonline bookstore. However, in a reservoir, the mobile gas phase is produced. Natural gas production engineering, pennwell books. Characterizing natural fractures productivity in tight gas reservoirs. Participants will also be introduced to analytical simulation. In some naturally fractured tight gas reservoirs, horizontal wells andor multilateral. Starting with basic fundamentals, the book then includes real field data that. The liquid dropout curve assumes the two phases remain in contact with one another. Sciforum preprints scilit sciprofiles mdpi books encyclopedia.
Predicting the performance of tight gas reservoirs onepetro. Reservoir simulation was carried out based on a typical west australian tight gas reservoir in order to understand how well productivity is affected by each of the damage mechanisms such as. Shale gas and tight oil reservoir simulation knovel. In these studies, universal intelligent systems act as robust datadriven rta andor pta tools applicable for various types of reservoirs. Numerical model for shale gas and tight oil simulation. 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.
Purchase shale gas and tight oil reservoir simulation 1st edition. Its a valuable tool to understand the oil and gas reservoir performance under various operating strategies. This is because there is a long period of transient flow in tight gas reservoirs that biases the fitting and results in incorrect predictions of late time performance. A hydraulic fracturing design and evaluation simulator was used to model the geometry and.
In the meantime, aibased pta tools are structured for naturally fractured tight gas reservoirs developed with multilateral wells, and gas reservoir recovered using dual lateral wells. The course is focused on reservoir management issues for tight gas, tight oil and shale reservoirs. Tight gas basics most of us are familiar with traditional tight gas reservoirs clean, low porosity sandstones or siltstones that look unattractive on log analysis, at least by the conventional wisdom of the 1960s. Training course and seminar catalog society of petroleum. Introduction webster defines simulate as to assume the appearance of without reality. Embedded discrete fracture modeling and application in. Starting with basic fundamentals, the book then includes real field data that will not only generate reliable reserve estimation, but also predict the. Research on the development mechanism of tight sandstone. Geomechanics, petrophysics, production and reservoir engineering expertise for reservoir characterization is combined with a reservoir simulation approach and core analysis experiments to understand the optimum strategy for tight gas development, delivering improved well productivity and gas recovery. Falling between conventional and shale gas in the reservoir permeability. Numerical simulation of the in situ stress in a highrank coal reservoir and its effect on coalbed methane well productivity. Simulation, decline curve analysis, tight gas downloads 7 in the last 30 days.
A case study of lower permian strata in the southern qinshui basin, china. In this oneday short course, the emphasis is on understanding what is unique about tight gas. One obvious solution to the material balance problem in tight gas reservoirs is the use of a numerical simulator. This book delivers the latest research and applications used to better manage and interpret simulating production from shale gas and tight oil reservoirs. Optimizing hydraulic fracturing treatment integrating geomechanical analysis and reservoir simulation for a fractured tight gas reservoir, tarim basin, china. The rich gas drops out more condensate than the lean gas bottom leftt. Two other relatively new approaches to solving the material balance problem that can be used if reservoir simulation software is not available are. Both coal bed methane cbm and fractured tight gas reservoirs are. 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. Yu authored or coauthored more than 150 technical papers and holds five patents and one book shale gas and tight oil reservoir simulation.
Shale gas and tight oil reservoir simulation ebook, 2018. Falling between conventional and shale gas in the reservoir permeability spectrum, tight gas reservoirs are important sources of energy. Fundamentals of subsurface development planning for coalbed methane. Porosity averages from 5 to 10% with permeability between 0. Reservoir simulation is an area of reservoir engineering in which computer models are used to predict the flow of fluids typically, oil, water, and gas through porous media under the model in the broad scientific sense of the word, they understand a real or mentally created structure that reproduces or reflects the object being studied.
All petrotechnical professionals who have little experience with unconventional reservoirs but who need or desire to start developing some understanding of important basic concepts and methods associated with these resource types. Special issue reservoir simulation and prediction of gas, oil and coal mine special issue editors special issue information. Embedded discrete fracture model edfm for complex fracture geometry. Many of the low permeability reservoirs that have been developed in the past are sandstone, but significant quantities of gas are also produced from low permeability carbonates, shales, and coal seams. Reservoir simulate is an area of reservoir engineering modeling reservoir dynamic behaviour using 3d models generated from geology, geophysics, petrophysics, etc disciplines to predict fluid flow through porous media. Considerations in practical application of simulation models.
Challenges of reserves estimate tight and unconventional. Tight gas reservoir development society of petroleum engineers. Many more details can be found in the referenced papers and books. Analytical and numerical simulation studies are performed to have a qualitative understanding of damage mechanisms associated with production from nonfractured and hydraulically fractured tight gas reservoirs. Fundamentals of gas shale reservoirs introduces the reader to the topic of shale gas reservoirs and highlights the importance of the shale gas. In shale gas reservoirs, the gas will be stored in the form of free gas and the adsorbed gas. Evaluating factors controlling damage and productivity in. Tight gas is the term commonly used to refer to low permeability reservoirs that produce mainly dry natural gas. Special issue reservoir simulation and prediction of gas. An introduction to reservoir simulation using matlab sintef. Simulation of petroleum reservoir performance refers to the construction and operation of a model whose behavior assumes the appearance of actual reservoir. We consider a cubical matrix blocks, which consists of free gas and the adsorbed gas. Optimizing hydraulic fracturing treatment integrating. Pge 323m reservoir engineering iii simulation 17,218 views 25.
Shale gas and tight oil reservoir simulation sciencedirect. Their characteristics and development approach are different than the other two categories of gas resources. Modelling of shale, tight oil and gas reservoirs training course for reservoir simulation engineers and other oil and gas professionals modelling of shale, tight oil and gas reservoirs. Reservoir simulation of shale gas and tight oil reservoirs.
Starting with basic fundamentals, the book then includes real field data that will not only generate reliable reserve estimation, but also. Introduction of shale gas and tight oil reservoirs. Semianalytical model for shale gas and tight oil simulation. Modeling and simulation of gas flow behavior in shale. Gas reservoirs lend themselves to easy calculation of the hydrocarboninplace through a general gas law equation. Prediction of geomechanical sweet spots in a tight gas. One of the main characteristics of a tight gas reservoir is the. Description 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. Reservoir management for unconventional reservoirs. Natural fractured reservoir engineering phdg textbooks in preparation, intended to be issued during 2015. Pdf tight gas reservoirs are categorized as unconventional gas reservoirs.
Discretization and gridding in reservoir simulation 2. He is an associate editor for spe journal, journal of petroleum science and engineering, and international journal of oil, gas and coal technology. Shale gas and tight oil reservoir simulation 1st edition elsevier. Crains petrophysical handbook tight gas reservoir analysis. Geomechanics, petrophysics, production and reservoir engineering expertise for reservoir characterization is combined with a reservoir simulation approach and core analysis experiments to understand the optimum strategy for tight gas development, delivering improved well productivity and gas. This course will provide participants with an overview of the analysis and development of tight gas reservoirs. There are many books that describe mathematical models for flow in porous. Shale gas and tight oil reservoir simulation yu, wei, sepehrnoori, kamy on. Pdf the modeling and simulation of tight gas reservoirs. Prediction of geomechanical sweet spots in a tight gas sandstone reservoir.
In shale gas reservoirs, the gas desorption phenomenon exists so we included the gas desorption in the model using langmuir isotherm as summarized in table 3 1819 20. Here, we are presenting an updated dualmechanism dualporosity that accounts the free gas in the reservoir pores and the adsorbed gas on the surface of the kerogen. Modeling discrete irregular stratabound fracture network flow, including dynamic recharge from the matrix, author mckoy, m. Go back to shale gas and tight oil reservoir simulation page. To evaluate a layered, tight gas reservoir and design the well completion, the operator must use both a reservoir model and a hydraulic fracture propagation model. Shale gas and tight oil reservoir simulation by wei yu. The petroleum evolution rules in the lower cretaceous deep tight sandstone reservoir are unclear. This course will cover the evaluation, completion, stimulation, along with the development of tight gas reservoirs.
Often, more data and more engineering manpower are required to. Tight gas reservoirs an unconventional natural energy source. Starting with basic fundamentals, the book then includes real field data that will not only generate reliable reserve. A reservoir simulation study of naturally fractured. Spe references csugspe 1pp shale gas modeling workflow. Starting with basic fundamentals, the book then includes real field data that will not only generate reliable reserve estimation, but also predict the effective range of reservoir and fracture properties. Shale gas and tight oil reservoir simulation request pdf. By feng gui, khalil rahman, daniel moos, george vassilellis, chao li, qing liu, fuxiang zhang, jianxin peng, xuefang yuan and guoqing zou. Tight gas is natural gas produced from reservoir rocks with such low permeability that massive hydraulic fracturing is necessary to produce the well at economic rates.
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