Optimization of Steam Assisted Gravity Drainage, Electrical Joule's Heating, and Thermal-chemical Processes for Heavy Oil Reservoirs PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Optimization of Steam Assisted Gravity Drainage, Electrical Joule's Heating, and Thermal-chemical Processes for Heavy Oil Reservoirs PDF full book. Access full book title Optimization of Steam Assisted Gravity Drainage, Electrical Joule's Heating, and Thermal-chemical Processes for Heavy Oil Reservoirs by Elif Ozdingis. Download full books in PDF and EPUB format.
Author: Elif Ozdingis
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Get Book Here
Book Description
Thermal enhanced oil recovery techniques have been considered as the best approach to produce heavy oil, however, not all thermal methods are appropriate or effective for oil production from every heavy oil reservoir. Therefore, this research study aims to investigate how reservoir and operational parameters affect certain thermal enhanced oil recovery methods (steam assisted gravity drainage, and low frequency electrical heating) and a hybrid thermal-chemical process (method which combines low frequency electrical heating with hot water and alkaline/co-solvent/polymer injection). In this master's thesis, a compositional reservoir simulator, UTCHEM, was used to build the base case reservoir models. UTCHEM is a three-dimensional, multicomponent, multiphase reservoir simulator, which is mainly utilized to model chemical flooding processes. Besides modeling many features of chemical floods, the simulator can also handle complex phase behavior, heterogeneous porous medium properties. In this study, a modified version of UTCHEM, which includes a thermal module to model thermal recovery processes, was used to design steam assisted gravity drainage, low frequency electrical heating and hot water flooding periods and a geochemical module of UTCHEM was used for simulating chemical flooding part. Simulation results showed that a considerable increase in oil recovery is obtained when multiple SAGD well pairs are used. It is also observed that steam injection rate and heat loss have a significant influence on the steam assisted gravity drainage process. On the other hand, heat loss does not affect low frequency electrical heating method. It is deduced that low frequency electrical heating technique is not economically feasible and not very efficient to heat the reservoir. Therefore, low frequency electrical heating method can be used as a preheating application to lower the oil viscosity and, in turn, increase the injectivity in high viscous oil reservoirs. Finally, simulation results revealed that in the thermal-chemical process at the end of chemical flood, the amount of oil recovered is 80% of original oil in place (OOIP) where the oil recovery is only around 5% after hot water flooding. Thus, combining reservoir (pre)heating and chemical enhanced oil recovery methods has the potential to become a promising oil recovery method for heavy oil reservoirs.
Author: Elif Ozdingis
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Get Book Here
Book Description
Thermal enhanced oil recovery techniques have been considered as the best approach to produce heavy oil, however, not all thermal methods are appropriate or effective for oil production from every heavy oil reservoir. Therefore, this research study aims to investigate how reservoir and operational parameters affect certain thermal enhanced oil recovery methods (steam assisted gravity drainage, and low frequency electrical heating) and a hybrid thermal-chemical process (method which combines low frequency electrical heating with hot water and alkaline/co-solvent/polymer injection). In this master's thesis, a compositional reservoir simulator, UTCHEM, was used to build the base case reservoir models. UTCHEM is a three-dimensional, multicomponent, multiphase reservoir simulator, which is mainly utilized to model chemical flooding processes. Besides modeling many features of chemical floods, the simulator can also handle complex phase behavior, heterogeneous porous medium properties. In this study, a modified version of UTCHEM, which includes a thermal module to model thermal recovery processes, was used to design steam assisted gravity drainage, low frequency electrical heating and hot water flooding periods and a geochemical module of UTCHEM was used for simulating chemical flooding part. Simulation results showed that a considerable increase in oil recovery is obtained when multiple SAGD well pairs are used. It is also observed that steam injection rate and heat loss have a significant influence on the steam assisted gravity drainage process. On the other hand, heat loss does not affect low frequency electrical heating method. It is deduced that low frequency electrical heating technique is not economically feasible and not very efficient to heat the reservoir. Therefore, low frequency electrical heating method can be used as a preheating application to lower the oil viscosity and, in turn, increase the injectivity in high viscous oil reservoirs. Finally, simulation results revealed that in the thermal-chemical process at the end of chemical flood, the amount of oil recovered is 80% of original oil in place (OOIP) where the oil recovery is only around 5% after hot water flooding. Thus, combining reservoir (pre)heating and chemical enhanced oil recovery methods has the potential to become a promising oil recovery method for heavy oil reservoirs.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Get Book Here
Book Description
Thermal methods, and particularly steam injection, are currently recognized as the most promising for the efficient recovery of heavy oil. Despite significant progress, however, important technical issues remain open. Specifically, still inadequate is our knowledge of the complex interaction between porous media and the various fluids of thermal recovery (steam, water, heavy oil, gases, and chemicals). While, the interplay of heat transfer and fluid flow with pore- and macro-scale heterogeneity is largely unexplored. The objectives of this contract are to continue previous work and to carry out new fundamental studies in the following areas of interest to thermal recovery: displacement and flow properties of fluids involving phase change (condensation-evaporation) in porous media; flow properties of mobility control fluids (such as foam); and the effect of reservoir heterogeneity on thermal recovery. The specific projects are motivated by and address the need to improve heavy oil recovery from typical reservoirs as well as less conventional fractured reservoirs producing from vertical or horizontal wells. During this past quarter, work continued on: the development of relative permeabilities during steam displacement; the optimization of recovery processes in heterogeneous reservoirs by using optical control methods; and in the area of chemical additives, work continued on the behavior of non-Newtonian fluid flow and on foam displacements in porous media.
Author: Tee Sing Ong
Publisher:
ISBN:
Category : Thermal oil recovery
Languages : en
Pages : 304
Get Book Here
Book Description
![Modification of Reservoir Chemical and Physical Factors in Steamfloods to Increase Heavy Oil Recovery. [Quarterly Report], January 1--March 31, 1997 PDF](https://books.google.com/books/content/images/frontcover/Vdv9jwEACAAJ?fife=w80-h100)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Get Book Here
Book Description
Thermal methods, and particularly steam injection, are currently recognized as the most promising for the efficient recovery of heavy oil. Despite significant progress, however, important technical issues remain open. Specifically, still inadequate is our knowledge of the complex interaction between porous media and the various fluids of thermal recovery (steam, water, heavy oil, gases, and chemicals). While, the interplay of heat transfer and fluid flow with pore- and macro-scale heterogeneity is largely unexplored. The objectives of this contract are to continue previous work and to carry out new fundamental studies in the following areas of interest to thermal recovery: displacement and flow properties of fluids involving phase change (condensation-evaporation) in porous media; flow properties of mobility control fluids (such as foam); and the effect of reservoir heterogeneity on thermal recovery. The specific projects are motivated by and address the need to improve heavy oil recovery from typical reservoirs as well as less conventional fractured reservoirs producing from vertical or horizontal wells. During this quarter, work continued on the development of relative permeabilities during steam displacement. Most of the work concentrated on the representation of the three-phase flow in terms of a double-drainage process. Work continued on the optimization of recovery processes in heterogeneous reservoirs by using optimal control methods. The effort at present is concentrating in fine-tuning the optimization algorithm as well as in developing control methodologies with different constraints. In parallel, we continued experiments in a Hele-Shaw cell with two controlled injection wells and one production well. In the area of chemical additives work continued on the behavior of non-Newtonian fluid flow and on foam displacements in porous media.
Author: Ning Ju
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Get Book Here
Book Description
Steam-Assisted Gravity Drainage is an effective approach for recovering heavy oil and bitumen and its essence idea is to introduce steam heat into cold reservoir and reduce oil viscosity. In a typical SAGD process, two horizontal wells were drilled inside the target formation, one is put on the top as steam injection well and another is usually put on the bottom of target formation as oil production well. During SAGD process, a large amount of high pressure high temperature steam is injected into reservoir which occupies a big part of the whole SAGD project cost. The steam pressure and quality decreases during the steam flow inside vertical wellbore because the steam loses its heat through wellbore system to formation due to temperature gradient. And in horizontal wellbore, steam even flow into formation through slotted liner which takes away energy directly. For a SAGD project, the steam pressure and steam quality insides steam injection well are quite important parameters. A high enough quality can offer enough energy for steam chamber to develop and steam pressure will influence the oil production rate, steam trap control as well as ultimate oil recovery. In order to control the cost of SAGD production and offer evidence for steam injection, oil production strategy, the knowledge of steam properties (pressure, temperature, quality) along both vertical and horizontal wellbore are needed. The steam flow inside wellbore is a two phase (dry steam and hot water) flow and the determination of phase void fraction is critical in predicting the pressure loss and heat transfer. The major difference between steam flow inside horizontal wellbore and vertical wellbore is the existence of wall outflow in horizontal wellbore part. This wellbore outflow has a significant effect on wellbore friction as well as flow pattern transition inside wellbore which make it difficult to describe flow pattern in horizontal wellbore by former technology. A model describe steam flow inside wellbore during conventional Steam Assisted Gravity Drainage stage (after the steam chamber has achieved full height and lateral growth becomes the dominant mechanism for recovery) was built and solved in this thesis. A flow pattern independent drift flux model based void fraction correlation was introduced in this thesis in order to overcome the uncertainty problem in determining flow pattern and making is possible to describe steam flow in both vertical wellbore and horizontal wellbore in an unified way. A modified Reis's drainage model was used in this thesis which combined steam flow inside wellbore and steam chamber development inside formation. The steam properties (pressure, quality) distribution along wellbore trajectory were calculated, the effects of basic steam injection parameters (pressure, quality and mass flow rate) were analysed in this thesis. These steam property profiles along wellbore trajectory actually build correlations between wellbore flow and oil production, and will improve the understanding in steam injection strategy adjustment as well as oil production dynamic monitoring.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 67
Get Book Here
Book Description
This status report summarizes the project BE11B (Thermal Processes for Heavy Oil Recovery) research activities conducted in FY93 and completes milestone 7 of this project. A major portion of project research during FY93 was concentrated on modeling and reservoir studies to determine the applicability of steam injection oil recovery techniques in Texas Gulf Coast heavy oil reservoirs. In addition, an in-depth evaluation of a steamflood predictive model developed by Mobil Exploration and Production Co. (Mobil E & P) was performed. Details of these two studies are presented. A topical report (NIPER-675) assessing the NIPER Thermal EOR Research Program over the past 10 years was also written during this fiscal year and delivered to DOE. Results of the Gulf Coast heavy oil reservoir simulation studies indicated that though these reservoirs can be successfully steamflooded and could recover more than 50% of oil-in-place, steamflooding may not be economical at current heavy oil prices. Assessment of Mobil E & P's steamflood predictive model capabilities indicate that the model in its present form gives reasonably good predictions of California steam projects, but fails to predict adequately the performance of non-California steam projects.
Author: Gavin Towler
Publisher: Elsevier
ISBN: 0080966608
Category : Technology & Engineering
Languages : en
Pages : 1321
Get Book Here
Book Description
Chemical Engineering Design, Second Edition, deals with the application of chemical engineering principles to the design of chemical processes and equipment. Revised throughout, this edition has been specifically developed for the U.S. market. It provides the latest US codes and standards, including API, ASME and ISA design codes and ANSI standards. It contains new discussions of conceptual plant design, flowsheet development, and revamp design; extended coverage of capital cost estimation, process costing, and economics; and new chapters on equipment selection, reactor design, and solids handling processes. A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data, and Excel spreadsheet calculations, plus over 150 Patent References for downloading from the companion website. Extensive instructor resources, including 1170 lecture slides and a fully worked solutions manual are available to adopting instructors. This text is designed for chemical and biochemical engineering students (senior undergraduate year, plus appropriate for capstone design courses where taken, plus graduates) and lecturers/tutors, and professionals in industry (chemical process, biochemical, pharmaceutical, petrochemical sectors). New to this edition: Revised organization into Part I: Process Design, and Part II: Plant Design. The broad themes of Part I are flowsheet development, economic analysis, safety and environmental impact and optimization. Part II contains chapters on equipment design and selection that can be used as supplements to a lecture course or as essential references for students or practicing engineers working on design projects. New discussion of conceptual plant design, flowsheet development and revamp design Significantly increased coverage of capital cost estimation, process costing and economics New chapters on equipment selection, reactor design and solids handling processes New sections on fermentation, adsorption, membrane separations, ion exchange and chromatography Increased coverage of batch processing, food, pharmaceutical and biological processes All equipment chapters in Part II revised and updated with current information Updated throughout for latest US codes and standards, including API, ASME and ISA design codes and ANSI standards Additional worked examples and homework problems The most complete and up to date coverage of equipment selection 108 realistic commercial design projects from diverse industries A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data and Excel spreadsheet calculations plus over 150 Patent References, for downloading from the companion website Extensive instructor resources: 1170 lecture slides plus fully worked solutions manual available to adopting instructors
Author: Havard Devold
Publisher: Lulu.com
ISBN: 1105538648
Category : Gas fields
Languages : en
Pages : 84
Get Book Here
Book Description
