Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Simulation Of Fracture Fluid Cleanup And Its Effect On Long Term Recovery In Tight Gas Reservoirs
Download Simulation Of Fracture Fluid Cleanup And Its Effect On Long Term Recovery In Tight Gas Reservoirs full books in PDF, epub, and Kindle. Read online Simulation Of Fracture Fluid Cleanup And Its Effect On Long Term Recovery In Tight Gas Reservoirs ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Simulation of Fracture Fluid Cleanup and Its Effect on Long-term Recovery in Tight Gas Reservoirs by : Yilin Wang
Download or read book Simulation of Fracture Fluid Cleanup and Its Effect on Long-term Recovery in Tight Gas Reservoirs written by Yilin Wang and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the coming decades, the world will require additional supplies of natural gas to meet the demand for energy. Tight gas reservoirs can be defined as reservoirs where the formation permeability is so low (
Book Synopsis Analysis of Fracture Fluid Cleanup and Long-term Recovery in Shale Gas Reservoirs by : Maxian Seales
Download or read book Analysis of Fracture Fluid Cleanup and Long-term Recovery in Shale Gas Reservoirs written by Maxian Seales and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Horizontal wells combined with successful multi-stage hydraulic fracture treatments are currently the most widely applied technology for effectively stimulating and enabling economic development of gas bearing, organic-rich shale formations. Fracture fluid cleanup in the stimulated reservoir volume (SRV) is critical to stimulation effectiveness and long-term well performance. However, if the created hydraulic fractures and reinitiated natural fractures are not cleaned up, post-fracture well performance will fall below expectations. Flowback water typically has 10 to 20 times more total dissolved solids (TDS) than the injected fluid. The total dissolved solids in flowback water can be as much 197,000 mg/L; chloride levels alone can be as high as 151,000 mg/L. Effective management of waste water produced from shale gas wells requires a clear understanding of how the volume and composition of this water change over the long term, not only during the flowback period. A systematic study of the factors that hinder fracture cleanup, those that influence the ionic composition of flowback and produced water, and those that enhance gas recovery can help optimize fracture treatments, better quantify long term volumes of produced water and gas, and aid with the management of waste water. To this end, a fully implicit, 3-dimensional, 2-phase, dual-porosity numerical simulator was developed and coupled with a ionic composition model. The research findings have shed light on the factors that substantially affect efficient fracture fluid cleanup and gas recovery in gas shales, and have provided guidelines for improved fracture treatment designs and water management.
Book Synopsis Evaluating Factors Controlling Damage and Productivity in Tight Gas Reservoirs by : Nick Bahrami
Download or read book Evaluating Factors Controlling Damage and Productivity in Tight Gas Reservoirs written by Nick Bahrami and published by Springer Science & Business Media. This book was released on 2013-11-01 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tight gas reservoirs have very low permeability and porosity, which cannot be produced at economical flow rates unless the well is efficiently stimulated and completed using advanced and optimized technologies. Economical production on the basis of tight gas reservoirs is challenging in general, not only due to their very low permeability but also to several different forms of formation damage that can occur during drilling, completion, stimulation, and production operations. This study demonstrates in detail the effects of different well and reservoir static and dynamic parameters that influence damage mechanisms and well productivity in tight gas reservoirs. 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.
Book Synopsis Proceedings of the International Field Exploration and Development Conference 2023 by : Jia’en Lin
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 1909 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A New Analytical Method to Quantify Residual Fluid Cleanup in Hydraulic Fractures by : Tahira Zarrin
Download or read book A New Analytical Method to Quantify Residual Fluid Cleanup in Hydraulic Fractures written by Tahira Zarrin and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of factors contribute to reduce the production benefits from hydraulic fracturing, including inefficient fluid design, poor proppant selection and or, the inability of fracture fluid to degrade and flow back after treatment. Undegraded hydraulic fracturing fluid has always been a major issue, and is believed to drastically undermine the performance of hydraulically fractured wells. Several attempts have been made to quantify the damage associated with residual fluid, with varying level of success. Previous approaches may include lab experiments, numerical simulation and evaluation of production data. In this work, the previous investigation results has been accounted and further improvement is made in quantifying the cleanup of residual fluid and subsequent hydrocarbon recovery. After investigating fracture fluid damage mechanism, a simple mathematical model is developed to quantify residual fluid cleanup and its effect on the gas production from a tight gas sandstone reservoir. Key solutions have been derived with the help of Mathematica, and then a simple Excel-VBA code have also been developed to better characterize the cleanup process under different reservoir conditions, hydraulic fracture dimensions and varying residual fluid rheology. Contrary to the previous attempts we assume that the entire fracture is in a plugged initially. In addition to this we use a system approach and show that initially the available reservoir energy is used for establishing a narrow flow channel in the fracture, and the system approaches to its final productivity gradually. Results and analyses show that higher conductivity of hydraulic fracture does not ensure 100% cleanup; if sufficient energy is not available from the reservoir to overcome the resistance exhibited by the complex rheology of residual fluid along the fracture. This work provides a methodology that will help engineers to select the right fracturing fluid properties in tight gas. This is important because only in North America approximately 10,784Tcf of unconventional and gas reserves are present and more such reservoirs will be stimulated to fulfill the needs of future energy demand. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/152734
Book Synopsis The Effects of Fracture Fluid Cleanup Upon the Analysis of Pressure Buildup Tests in Tight Gas Reservoirs by : Atle Thomas Johansen
Download or read book The Effects of Fracture Fluid Cleanup Upon the Analysis of Pressure Buildup Tests in Tight Gas Reservoirs written by Atle Thomas Johansen and published by . This book was released on 1988 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interaction of Fracture Fluid with Formation Rock and Proppant on Fracture Fluid Cleanup and Long Term Gas Recovery in Marcellus Shale Reserviors by : Wenting Yue
Download or read book Interaction of Fracture Fluid with Formation Rock and Proppant on Fracture Fluid Cleanup and Long Term Gas Recovery in Marcellus Shale Reserviors written by Wenting Yue and published by . This book was released on 2012 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the International Field Exploration and Development Conference 2019 by : Jia'en Lin
Download or read book Proceedings of the International Field Exploration and Development Conference 2019 written by Jia'en Lin and published by Springer Nature. This book was released on 2020-07-11 with total page 3907 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers selected papers from the 8th International Field Exploration and Development Conference (IFEDC 2019) and addresses a broad range of topics, including: Low Permeability Reservoir, Unconventional Tight & Shale Oil Reservoir, Unconventional Heavy Oil and Coal Bed Gas, Digital and Intelligent Oilfield, Reservoir Dynamic Analysis, Oil and Gas Reservoir Surveillance and Management, Oil and Gas Reservoir Evaluation and Modeling, Drilling and Production Operation, Enhancement of Recovery, Oil and Gas Reservoir Exploration. The conference not only provided a platform to exchange experiences, but also promoted the advancement of scientific research in oil & gas exploration and production. The book is chiefly intended for industry experts, professors, researchers, senior engineers, and enterprise managers.
Book Synopsis Enhanced Oil Recovery in Shale and Tight Reservoirs by : James J.Sheng
Download or read book Enhanced Oil Recovery in Shale and Tight Reservoirs written by James J.Sheng and published by Gulf Professional Publishing. This book was released on 2019-11-07 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oil Recovery in Shale and Tight Reservoirs delivers a current, state-of-the-art resource for engineers trying to manage unconventional hydrocarbon resources. Going beyond the traditional EOR methods, this book helps readers solve key challenges on the proper methods, technologies and options available. Engineers and researchers will find a systematic list of methods and applications, including gas and water injection, methods to improve liquid recovery, as well as spontaneous and forced imbibition. Rounding out with additional methods, such as air foam drive and energized fluids, this book gives engineers the knowledge they need to tackle the most complex oil and gas assets. Helps readers understand the methods and mechanisms for enhanced oil recovery technology, specifically for shale and tight oil reservoirs Includes available EOR methods, along with recent practical case studies that cover topics like fracturing fluid flow back Teaches additional methods, such as soaking after fracturing, thermal recovery and microbial EOR
Book Synopsis Selection of Fracture Fluid for Stimulating Tight Gas Reservoirs by : Rajgopal Vijaykumar Malpani
Download or read book Selection of Fracture Fluid for Stimulating Tight Gas Reservoirs written by Rajgopal Vijaykumar Malpani and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Essentially all producing wells drilled in tight gas sands and shales are stimulated using hydraulic fracture treatments. The development of optimal fracturing procedures, therefore, has a large impact on the long-term economic viability of the wells. The industry has been working on stimulation technology for more than 50 years, yet practices that are currently used may not always be optimum. Using information from the petroleum engineering literature, numerical and analytical simulators, surveys from fracturing experts, and statistical analysis of production data, this research provides guidelines for selection of the appropriate stimulation treatment fluid in most gas shale and tight gas reservoirs. This study takes into account various parameters such as the type of formation, the presence of natural fractures, reservoir properties, economics, and the experience of experts we have surveyed. This work provides a guide to operators concerning the selection of an appropriate type of fracture fluid for a specific set of conditions for a tight gas reservoir.
Book Synopsis Mathematical Modeling of Fluid Flow and Heat Transfer in Petroleum Industries and Geothermal Applications by : Mehrdad Massoudi
Download or read book Mathematical Modeling of Fluid Flow and Heat Transfer in Petroleum Industries and Geothermal Applications written by Mehrdad Massoudi and published by MDPI. This book was released on 2020-04-16 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geothermal energy is the thermal energy generated and stored in the Earth's core, mantle, and crust. Geothermal technologies are used to generate electricity and to heat and cool buildings. To develop accurate models for heat and mass transfer applications involving fluid flow in geothermal applications or reservoir engineering and petroleum industries, a basic knowledge of the rheological and transport properties of the materials involved (drilling fluid, rock properties, etc.)—especially in high-temperature and high-pressure environments—are needed. This Special Issue considers all aspects of fluid flow and heat transfer in geothermal applications, including the ground heat exchanger, conduction and convection in porous media. The emphasis here is on mathematical and computational aspects of fluid flow in conventional and unconventional reservoirs, geothermal engineering, fluid flow, and heat transfer in drilling engineering and enhanced oil recovery (hydraulic fracturing, CO2 injection, etc.) applications.
Book Synopsis Displacement of Water by Gas in Propped Fractures by : Jaskaran Singh Parmar
Download or read book Displacement of Water by Gas in Propped Fractures written by Jaskaran Singh Parmar and published by . This book was released on 2013 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inefficient recovery of fracturing water used in multi-stage hydraulic fracturing operations is a growing industrial concern. Non-recovered water can be trapped in the tight rock matrix and/or in the complex fracture network. Trapped water can block the gas flow and damage the reservoir. This study reports results of various drainage experiments conducted to identify the factors controlling water displacement in propped hydraulic fractures. We conduct two sets of drainage experiments. First set of experiments are conducted by using a proppant packed column which is saturated with frac-fluid. These experiments are used to investigate the role of proppant and fluid characteristics on fluid recovery. Second set of drainage experiments are conducted in a physical fracture model. These experiments are designed to investigate the role of gravity, drawdown, surface tension and proppant wettability on fluid recovery. The results of this study suggest that gravity plays a dominant role in fracture cleanup and that water cleanup in fractures below well may be inefficient. Increasing the drawdown does not improve water recovery. Reducing surface tension and using treated hydrophobic proppant improves the sweep efficiency and in turn the load recovery.
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1983 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1987 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulating the Effect of Water on the Fracture System of Shale Gas Wells by : Hassan Hasan H. Hamam
Download or read book Simulating the Effect of Water on the Fracture System of Shale Gas Wells written by Hassan Hasan H. Hamam and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It was observed that many hydraulically fractured horizontal shale gas wells exhibit transient linear flow behavior. A half-slope on a type curve represents this transient linear flow behavior. Shale gas wells show a significant skin effect which is uncommon in tight gas wells and masks early time linear behavior. Usually 70-85 percent of frac water is lost in the formation after the hydraulic fracturing job. In this research, a shale gas well was studied and simulated post hydraulic fracturing was modeled to relate the effect of frac water to the early significant skin effect observed in shale gas wells. The hydraulically fractured horizontal shale gas well was described in this work by a linear dual porosity model. The reservoir in this study consisted of a bounded rectangular reservoir with slab matrix blocks draining into neighboring hydraulic fractures and then the hydraulic fractures feed into the horizontal well that fully penetrates the entire rectangular reservoir. Numerical and analytical solutions were acquired before building a 3D 19x19x10 simulation model to verify accuracy. Many tests were conducted on the 3D model to match field water production since initial gas production was matching the analytical solutions before building the 3D simulation model. While some of the scenarios tested were artificial, they were conducted in order to reach a better conceptual understanding of the field. Increasing the water saturation in the formation resulted in increasing water production while lowering gas production. Adding a fractured bottom water layer that leaked into the hydraulic fracture allowed the model to have a good match of water and gas production rates. Modeling trapped frac water around the fracture produced approximately the same amount of water produced by field data, but the gas production was lower. Totally surrounding the fracture with frac water blocked all gas production until some of the water was produced and gas was able to pass through. Finally, trapped frac water around the fracture as combined with bottom water showed the best results match. It was shown that frac water could invade the formation surrounding the hydraulic fracture and could cause formation damage by blocking gas flow. It was also demonstrated that frac water could partially block off gas flow from the reservoir to the wellbore and thus lower the efficiency of the hydraulic fracturing job. It was also demonstrated that frac water affects the square root of time plot. It was proven by simulation that the huge skin at early time could be caused by frac water that invades and gets trapped near the hydraulic fractures due to capillary pressure.
Book Synopsis Simulation Studies to Evaluate the Effect of Fracture Closure on the Performance of Naturally Fractured Reservoirs by :
Download or read book Simulation Studies to Evaluate the Effect of Fracture Closure on the Performance of Naturally Fractured Reservoirs written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study has two principal objectives: (1) To evaluate the effects of fracture closure on the recovery of oil and gas reserves from naturally fractured petroleum or natural gas reservoirs. (2) To evaluate procedures for improving the recovery of these reserves using innovative fluid injection techniques to maintain reservoir pressure and mitigate the impact of fracture closure. The total scope of the study has been subdivided into three main tasks: (1) Baseline studies (non-pressure sensitive fractures); (2)studies with pressure sensitive fractures; and (3) innovative approaches for improving oil recovery.
Book Synopsis Investigation of Liquid Loading Mechanism Within Hydraulic Fractures in Unconventional/tight Gas Reservoirs and Its Impact on Production by : Samarth Agrawal
Download or read book Investigation of Liquid Loading Mechanism Within Hydraulic Fractures in Unconventional/tight Gas Reservoirs and Its Impact on Production written by Samarth Agrawal and published by . This book was released on 2013 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the major challenges in fracturing low permeability/tight/unconventional gas formations is the loss of frac water and well productivity due to fluid entrapment in the matrix or fracture. Field results have indicated that only 15-30% of the frac fluid is recovered at the surface after flow back is initiated. Past studies have suggested that this water is trapped in the rock matrix near the fracture face and remains trapped due to the high capillary pressure in the matrix. Significant efforts have been made in the past to understand the impact of liquid blocking in hydraulically fractured conventional gas wells. Numerous remediation measures such as huff and puff gas cycling, alcohol or surfactant based chemical treatments have been proposed to reduce fracture face damage. However, when considering hydraulic fractures in unconventional reservoirs horizontal wells, the fluid may also be trapped within the fracture itself and may impact the cleanup as well as productivity. This study shows that under typical gas flow rates in tight/shale gas formations, liquid loading within the fractures is likely to occur. Most of the previous simulation studies consider a 2D reservoir model and ignore gravity, considering the high vertical anisotropy (or extremely low vertical permeability) in these tight reservoirs matrix. However, this study presents the results of 3D simulations of liquid loading in hydraulic fractures in horizontal wells, including gravity and capillary pressure effects. Both CMG IMEX and GEM have been used to study this phenomenon in dry and wet gas cases. The impact of drawdown, fracture and reservoir properties on liquid loading and well productivity is presented. Results show that low drawdown, low matrix permeability or low initial gas rates aggravate the liquid loading problem inside the fracture and thereby impact the cleanup and gas productivity during initial production. A clear understanding of the phenomena could help in selection of optimal production facilities and well profile.
