Transient Shape Factors for Thermal Flow Simulation in Fractured Reservoirs
| atmire.migration.oldid | 3600 | |
| dc.contributor.advisor | Chen, Zhangxing (John) | |
| dc.contributor.author | Taabbodi, Loran | |
| dc.date.accessioned | 2015-09-22T20:54:10Z | |
| dc.date.available | 2015-11-20T08:00:40Z | |
| dc.date.issued | 2015-09-22 | |
| dc.date.submitted | 2015 | en |
| dc.description.abstract | The simulation of naturally fractured reservoirs (NFRs) is an extremely daunting and challenging task. The most important and difficult aspect of modeling a naturally fractured reservoir is the accurate estimation of the fluid exchange between matrix and surrounded fractures, which is modeled via a shape factor. The main focuses of this dissertation are the characterization and understanding as to how shape factors are utilized for modeling non-isothermal, fracture-matrix fluid exchange in fractured reservoirs. The intention of this research, therefore, is to achieve a better understanding of the matter exchanges between fractures and matrix blocks in a dual-porosity system by defining an appropriate transient matrix-fracture shape factor formulation that accounts for a multiphase flow system in thermal reservoir simulation of naturally fractured reservoirs. A novel and more general technique are developed for the exchange of fluids between the matrix blocks and the surrounded fractures. The concept of a new transient shape factor is introduced for non-isothermal, dual-porosity models and validated against the most current shape factor formulations. In this study, the CMG STARS simulator is used to estimate and validate the proposed transient shape factor. A MATLAB code is developed and coupled with the CMG STARS to compute transient shape factor (TSF). This new technique describes the most appropriate way of treating a shape factor to capture the pertinent features of non-isothermal fluid flow in NFRs. A robust transformation function (T.F) formulation is developed between the fractures and the matrix for a better representation of a dual-porosity system in thermal recovery. The proposed transient shape factor (TSF) model is validated against a fine grid single porosity model and an historical field data to confirm the model capability for reproducing accurate physical processes and recovery mechanisms. The results clearly demonstrate that a constant value of the shape factor (e.g., Kazemi’s formulation) cannot be used to predict the overall performance in dual-media systems due to invalid assumptions. The conclusions from this study clearly show that a suitable and accurate transfer transient shape factor is required for an appropriate modeling of a thermal recovery process in NFRs when using dual-porosity formulations. | en_US |
| dc.identifier.citation | Taabbodi, L. (2015). Transient Shape Factors for Thermal Flow Simulation in Fractured Reservoirs (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/28512 | en_US |
| dc.identifier.doi | http://dx.doi.org/10.11575/PRISM/28512 | |
| dc.identifier.uri | http://hdl.handle.net/11023/2476 | |
| dc.language.iso | eng | |
| dc.publisher.faculty | Graduate Studies | |
| dc.publisher.institution | University of Calgary | en |
| dc.publisher.place | Calgary | en |
| dc.rights | University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. | |
| dc.subject | Engineering--Petroleum | |
| dc.subject.classification | Dual-Porosity | en_US |
| dc.subject.classification | Shape Factor | en_US |
| dc.subject.classification | Fractured Reservoirs | en_US |
| dc.subject.classification | Thermal Recovery | en_US |
| dc.subject.classification | Transfer Function | en_US |
| dc.title | Transient Shape Factors for Thermal Flow Simulation in Fractured Reservoirs | |
| dc.type | doctoral thesis | |
| thesis.degree.discipline | Chemical and Petroleum Engineering | |
| thesis.degree.grantor | University of Calgary | |
| thesis.degree.name | Doctor of Philosophy (PhD) | |
| ucalgary.item.requestcopy | true |