Hydraulic fracturing in unconventional shale gas reservoirs dr. Efficient global optimization for hydraulic fracturing treatment design. The hydraulic fracturing process hydraulic fracturing is not a drilling technique. Request pdf hydraulic fracturing design and optimization. Mfrac makes it easy to design your treatment plan using established engineering design principles to increase your recovery, target your most productive plays while avoiding trouble zones, and optimize your treatment schedules. The hydraulic fracturing model has varying widths along the f. This course covers the fundamental principles concerning how hydraulic fracturing treatments can be used to stimulate oil and gas wells.
Presents an uptodate description of current and new hydraulic fracturing processes details emerging technologies such as fracture treatment design. An integrated model for multiobjective design optimization. Design optimization of horizontal wells with multiple hydraulic fractures in the bakken shale, by luigi saputelli. The objective of this project was to develop a mathematical model for hydraulic.
Fundamentals and advancements delivers a comprehensive discussion on the principles of hydraulic fracturing while also including the latest processes that have prompted the explosive growth in stimulating horizontal wells in shale and. Indiana oil and gas operators continue to utilize hydraulic fracturing to complete wells when they believe the method will increase the productivity of a well. Bobyqa, a derivativefree non linear optimization algorithm, is applied in 5 to drive a global search on the. To design a successful hydraulic fracture treatment, three tasks were conducted.
Us9394774b2 methods and devices for hydraulic fracturing. The process takes on the average, three to five days to complete. Britts experience includes the optimization, design, and execution of fracture stimulations and integrated field studies throughout the world. In effect, the design engineer should fracture treat the well many times on his or her computer. Overview geomechanics and hydraulic fracturing stimulation. Pdf low permeability shale formations, such as the bakken, require a large fracture network to enhance well productivity. We work with the database composed from reservoir properties, fracturing designs and production data. Datadriven model for fracturing design optimization. Methods for optimal control of hydraulic fracturing process ceur. As for what fracking means to the united states the answers are security, economic growth and jobs, jobs, jobs. Hydraulic fracturing numerical models have been developed on the basis of specific conceptual models. The design of hydraulic fracturing must make allowances for various considerations, parameters, and complicated calculations. The understanding of the stress shadow effects and what influences them could lead to optimization of hydraulic fracturing treatment design in terms of productivity and cost.
Hydraulic fracturing in unconventional shale gas reservoirs. Leverage our expertise to ensure your success baker hughes has a rigorous process for geomechanical modeling, and we use extensive regional geomechanical knowledge to ensure an accurate, robust design for your hydraulic fracturing applications. Machine learning on field data for hydraulic fracturing. Hydraulic fracturing fluid considerations in marcellus shale completions dennis l. Optimization of hydraulic fracturing and production enhancement. Although the outcome of our study is subjective to the chosen asset, the workflow provides a good example of horizontal well spacing and hydraulic fracturing design optimization. Predrilling, calibration and adjustment of geomechanical models in real time and postdrilling. Development of mathematical model for hydraulic fracturing design. Finally, the compressibility of the fracturing fluid triggered somewhat unexpected transient pressure behavior.
Hydraulic fracturing was introduced first in the hugoton gas field in western kansas in 1947. Optimizing of hydraulic fracturing procedure using. The economics show that this optimization approach has great promise and that it can predict net revenue. Pdf optimization of hydraulic fracturing design in. Design optimization of horizontal wells with multiple hydraulic fractures in the bakken shale, by luigi saputelli, spe, frontender. Optimization of hydraulic fracturing design in unconventional. Optimization of hydraulic fracturing and production.
Pdf the approach to the problem of hydraulic fracturing design optimization is proposed which combines three modules. The optimal fracture dimensions are achieved by executing a tip screenout design technique. The claims made by participants have not been verified or endorsed by epa. Details emerging technologies such as fracture treatment design, open hole fracturing, screenless completions, sand control, fracturing completions and productivity. Hydraulic fracturing design optimization and post fracture. Hydraulic fracturing design and operations guidelines. On the other hand, it has been potentially a dangerous and destructive practice that has led to. This conference has become one of spes most popular events, and i am confident that you will gain new knowledge and skills to advance your professional goals. Digital mfrac suite enhanced hydraulic fracturing design and.
Application of rock failure simulation in design optimization. Design optimization of horizontal wells with multiple. Unconventional resources completion and stimulation urcs. Pdf efficient global optimization for hydraulic fracturing. A successful hydraulic fracturing stimulation treatment is dependent on numerous factors. An optimal hydraulic fracture treatment design yields maximum net present value of the cash flow after the treatment, considering cash in flows and the treatment costs. Fracturing techniques were developed in 1948 and the first commercial fracturing treatments were conduced in 1949. Hydraulic fracturing is highly complex and variable. Handbook of hydraulic fracturing wiley online books. Hydraulic fracturing fluid considerations in marcellus shale. Integrated hydraulic fracture placement and design. Hydraulic fracturing fluid considerations in marcellus. This course is primarily intended to offer an introduction to hydraulic fracture design and optimization.
Hydraulic fracturing or fracking has been a source of both achievement and controversy for years, and it continues to be a hotbutton issue all over the world. Unconventional resources completion stimulation training. Pdf datadriven model for fracturing design optimization. Therefore, this paper presents a simple and fast mathematical model for hydraulic fracturing design treatment. D hydraulic fracturing design optimization and post fracture performance prediction using. All the requirements and assigned limits shall be applied during design and operations of welltests with injection.
Degner range resources appalachia, llc the statements made during the workshop do not represent the views or opinions of epa. Horizontal well spacing and hydraulic fracturing design. The focus is made on data gathering from various sources, data preprocessing and development of the architecture of a database as well as solving fracture design optimization via machine learning. Sensitivity runs lead to a better design and educate the design engineer on how certain variables affect the values of both the created and propped fracture dimensions. Pdf hydraulic fracturing design optimization bakken case.
Fracture modeling, hydraulic fracturing, plug and perf, production enhancement downloads 1 in the last 30 days 420 since 2007 show more detail. The frac jobs generally increased production, especially from loweryielding wells. The new design is a modification to zipper frac, where fractures are initiated in a staggered pattern. It has made the united states an energy exporting country once again and kept the price of gasoline low, for consumers and companies. However, not every well is completed using this method. Mfrac suite hydraulic fracturing software is field proven and trusted. In this paper, we present a new design to optimize fracturing of two laterals from both rock mechanic and fluid production aspects. Hydraulic fracturing techniques use a variety of chemicals which alter the formation properties in the optimization of fracture initiation and growth. Abstract due to technical and economical limitations of hydrofracturing operations in unconventional reservoirs worldwide, an optimized hydraulic fracturing design is critical to achieve a successful well stimulation operation. Optimization of hydraulic fracturing design with future. We propose a datadriven model for fracturing design optimization, where the workflow is essentially split into two stages. Of course design and optimization of hydraulic fracturing using computer simula tion is very promising and the only way to mine difficult reservoirs profitably. It is a technology used to enhance the flow of gasoil from a well, once the drilling is completed and the drilling rig is removed from the site. Hydraulic fracturing design free download as powerpoint presentation.
It makes it easy to design your treatment plan using established engineering design principles to increase your recovery, target your most productive plays while avoiding trouble zones, and optimize your treatment schedules. Optimizing hydraulic fracturing treatment integrating geomechanical analysis and reservoir simulation for a fractured tight gas reservoir, tarim basin, china feng gui, khalil rahman, daniel moos, george vassilellis, chao li, qing liu, fuxiang zhang, jianxin peng, xuefang yuan and guoqing zou additional information is available at the end of the. Modeling of hydraulic fracturing and design of online. Hydraulic fracturing, will serve as course material. Pdf hydraulic fracturing design optimization bakken case study. Spe member price 185 usd with an author team of 26 subjectmatter experts representing a diversity of talent, background, and experience, hydraulic fracturing. Hydraulic fracturing in medium and highpermeability reservoirs differs significantly from conventional fracturing, since the optimal placement of proppant requires shorter and wider fractures. Hydraulic fracturing is indeed relevant to indiana and has been since it began to be used in the early 1950s. The numerical models need to consider the relevant rock failure and fracture propagation mechanisms involved in the hydraulic fracturing concepts.
This paper presents an overview of hydraulic fracturing. Data preparation has been done using various ml techniques. There is a significant room for fracturing design optimization. Us9394774b2 methods and devices for hydraulic fracturing design and optimization. This paper uses a threedimensional three stress layer hydraulic fracturing. Spe 159786 hydraulic fracturing design and optimization.
Case studies for us shale plays and tight sand reservoirs. Optimization of hydraulic fracturing with unified fracture design method. Hydraulic fracturing design and operations guidelines these guidelines set out the ministry of national infrastructure, energy, and water resources mniewr requirements for hydraulic fracturing design and operations. In that case, robust optimization methods can be used to incorporate the expressed uncertainty in rock fracability into the hydraulic fracturing design optimization problem, an approach that has been employed in well placement and production optimization of conventional reservoirs. Developing energy from shale is an advanced process that uses the latest drilling technologies and equipment.
Some antifrack charges in media articles and university studies are based in fact and require a statebystate focused improvement of well design specific for geology of the area and oversight of overall well development. Larry has specialized in the development and application of tools for the post appraisal of hydraulic fracturing stimulations. Growing amount of hydraulic fracturing hf jobs in the recent two. Hydraulic fracturing of shales goes back at least to 1965, when some operators in the big sandy gas field of eastern kentucky and southern west virginia started hydraulically fracturing the ohio shale and cleveland shale, using relatively small fracs. Hydraulic fracture design in oil and gas reservoirs.
Therefore, an effective hydraulic fracturing design from pretreatment formation evaluation to environmental friendly and efficient management of fracturing fluid and waste water will be presented at the end of the study. Fundamentals and advancements delivers a comprehensive discussion on the principles of hydraulic fracturing while also including the latest processes that have prompted the explosive growth in stimulating horizontal wells in shale and tight oil and gas reservoirs. Design optimization of hydraulic fracturing iopscience. Optimization of hydraulic fracturing design under spatially. Hydraulic fracturing and horizontal drilling are safely unlocking vast u. Presents an uptodate description of current and new hydraulic fracturing processes. With an author team of 26 subjectmatter experts representing a diversity of talent, background, and experience, hydraulic fracturing. In particular, the optimal number, location, and length of the fractures can depend on rock fracability distribution. Optimization of the effective parameters on hydraulic. Acids are primarily used to clean perforations to provide an easy flow path into the formation for the fracturing fluid. The approach to the problem of hydraulic fracturing design optimization is proposed which combines three modules. However, people are still faced with many issues in hf optimization and eor implementation associated with a significant increase in capital costs in so development. An integrated novel model for hydraulic fracturing design optimization is presented, which recognizes complex interactions between a hydraulically coupled fracture geometry module, a hydrocarbon production module and an investmentreturn cash flow module. Fracture design and stimulation monitoring mike eberhard halliburton energy services the statements made during the workshop do not represent the views or opinions of epa.
This year we have more than 50 technical papers, a soldout exhibition with more than 100 companies, several. Pdf design optimization of hydraulic fracturing researchgate. According to the characteristics of scco 2 fracturing, the main optimization principle in the hydraulic parameter optimization design of scco 2 fracturing in an unconventional gas reservoir is the efficient transport of proppant based on the sand dike concentration and sand embankment profile. So is classified as an unconventional resource and an optimal hydraulic fracturing hf design with future eor consideration is essential for achieving a high oil production rate. In particular, we consider simultaneous perturbation stochastic approximation spsa and covariance matrix. Due to technical and economical limitations of hydrofracturing operations in unconventional reservoirs worldwide, an optimized hydraulic fracturing design is critical to achieve a successful well. Hydraulic fracturing in shale reservoirs is mostly dominated by the anisotropic.
Mfrac suite hydraulic fracturing software digital mfrac suite hydraulic fracturing software is field proven and trusted. The bakken big data study on the area compiled by the company petroleum engineers suggests an optimum completion design being 30 stages with 10 clusters per stage. Modeling of hydraulic fracturing and design of online optimal. A modification to zipper frac in recent years, new fracturing designs and techniques have been developed to enhance production of. This thesis focuses on developing novel optimization algorithms that can be used to improve the design and implementation of hydraulic fracturing in a shale gas reservoir to increase production and the net present value of unconventional assets.
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