Effects of CO₂ saturation on the recovery of the heavy oil using steam injection EOR technique

Download
index.pdf
2014
Farid, Guluzade
Show full item record
263
views
109
downloads
Enhanced Oil Recovery processes include all methods that use external sources of energy and/or materials to recover oil that cannot be produced economically by conventional means. EOR processes can be classified as: thermal methods (in-situ combustion, cyclic steam injection, steam flooding), chemical methods (alkaline, polymer, foam, or surfactant/polymer injection), and miscible methods (CO2, nitrogen, hydrocarbon, or flue gas injection). Steam flooding involves continuous injection of steam to displace oil towards producing wells. Normal practice is to start with cyclic steam injection and to continue with steam flooding. The mechanisms of steam injection are heating oil thus reducing its viscosity and supplying pressure to drive the oil towards producing wells. In this study, to analyze the effects of CO2 saturation on the heavy oil recovery by steam injection is aimed. A synthetic model is built in Schlumberger’s software Petrel, by using basic properties (porosity, permeability, API gravity) of hypothetical field. vi Production scenarios are taken to be different for better comparison of recoveries. Sensitivity runs are conducted in Eclipse software. This study should not be compared with real field data since a hypothetical geological model is used. Therefore, no history match can be done in this case. By the end of the study, water injection implementation and steam flooding are found to be the most appropriate oil recovery techniques for this particular, hypothetical field in terms of both production and pressure support. Therefore, scenario 1 and scenario 6 are the best methods to be applied. By the end of time schedule average reservoir pressure for scenarios 1 and 6 are 650 psi and 464 psi respectively with 283 and 234 stb/d of production. Furthermore, for being more thorough, material balance was also conducted in IPM tool, called MBal for checking the consistency of the model. Thus, close pressure trend was obtained from material balance compared to simulation model.
Enhanced oil recovery., Thermal oil recovery., Oil fields, Carbon dioxide., Heavy oil.
http://etd.lib.metu.edu.tr/upload/12618315/index.pdf
https://hdl.handle.net/11511/24356
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Random walk particle modelling of polymer injection using matlab reservoir simulation toolbox
Mamak, Gökhan; Durgut, İsmail; Department of Petroleum and Natural Gas Engineering (2017)
Enhanced oil recovery (EOR) is essential to increase the maximum recoverable oil by natural means of production. Having chosen an EOR method, the effectiveness of the method should be analyzed before applying to a reservoir since the methods are generally costly. Polymer injection is a chemical EOR process, where the injected polymer with water increases the water viscosity, and help increasing the sweep efficiency in the reservoir. In order to model the effects of polymer injection, the random-walk particl...
An Experimental study on steam distillation of heavy oils during thermal recovery
Tavakkoli Osgouel, Yashar; Parlaktuna, Mahmut; Department of Petroleum and Natural Gas Engineering (2013)
Thermal recovery methods are frequently used to enhance the production of heavy crude oils. Steam-based processes are the most economically popular and effective methods for heavy oil recovery for several decades. In general, there are various mechanisms over steam injection to enhance and have additional oil recovery. However, among these mechanisms, steam distillation plays pivotal role in the recovery of crude oil during thermal recovery process. In this study, an experimental investigation was carried o...
Optimization of CO₂ EOR and storage design under uncertainity
Bender, Serdar; Akın, Serhat; Department of Petroleum and Natural Gas Engineering (2016)
The combination of CO₂ enhanced oil recovery (EOR) and permanent CO₂ storage in mature oil reservoirs have the potential to provide a critical near-term solution for reducing greenhouse gas emissions. In the literature, although there are many studies about CO₂ storage and EOR, only a few studies have focused on maximizing both the oil recovery and the CO₂ storage. Moreover, these studies are either experimental or conducted using synthetic reservoir models. Typically, pure CO₂ has the property of mixing wi...
Effect of brine composition on oil recovery by waterflooding
Bagci, S; Kök, Mustafa Verşan; Türksoy, Ulaş (2001-01-01)
In this study, the effect of brine composition on oil recovery by waterflooding was experimentally studied. Different compositions of brine were injected in to packed one-dimensional unconsolidated limestone with Garzan crude oil (26 degrees API) and distilled water. Ten different brine compositions, three brine mixtures are prepared and distilled water was used for injection throughout the study. The highest recovery 18.8% higher than distilled water injection) considering all the experiments was obtained ...
Behavior and effect of SARA fractions of oil during combustion
Kök, Mustafa Verşan; Karacan, C.O. (1997-01-01)
In-situ combustion technology is considered to be an efficient one not only for heavy oil reserves but also for depleted light and medium oil bearing reservoirs. Unfortunately, the lack of better understanding of the process variables in terms of the conversion of oil during combustion and reservoir characteristics, as well as the costs, limits the more effective application of this technology. In this study, SARA fractions of two (medium and heavy) Turkish crude oils were separated by column chromatographi...
Citation Formats
G. Farid, “Effects of CO₂ saturation on the recovery of the heavy oil using steam injection EOR technique,” M.S. - Master of Science, Middle East Technical University, 2014.
METU IIS - Integrated Information Service open@metu.edu.tr