| dc.contributor.author | Mustafiz, Shabbir. | en_US |
| dc.date.accessioned | 2014-10-21T12:34:05Z | |
| dc.date.available | 2007 | |
| dc.date.issued | 2007 | en_US |
| dc.identifier.other | AAINR27649 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10222/54928 | |
| dc.description | The most important objective of any petroleum scheme is to extract more petroleum fluids, which are the blood line to the petroleum industries. The objective would be achieved more efficiently if the industry had the luxury of launching a 'reservoir shuttle' or a 'petroleum balloon' to roam around the reservoir. Since such is not the case, it makes the task of modeling most daunting. This dissertation addresses a number of complex phenomena such as nonlinearity in reservoir problems, non-Darcy flow, multiple solutions to natural phenomena, laser drilling, microwave irradiation for improved horizontal well performance etc. through theoretical, numerical or experimental investigations. | en_US |
| dc.description | This dissertation presents the state-of-the-art of reservoir simulation, which shows that in the Information Age, the salient features of the Science of Intangibles are important and necessary to be considered in the simulators. New, simple and explicit equations are developed for interblock geometric factors and bulk volumes that can reduce complicated logic in programming and source of confusion in reservoir simulation. The study on linearization of single-phase fluid flow problem shows that linearization during formulation can affect pressure results more than that caused by linearization during numerical evaluation. The fluid viscosity and formation volume factor are found to demonstrate weak nonlinearity in single-phase fluid flow problems. Several nonlinear problems including the Buckley-Leverett equation (with capillary) are solved by the Adomian Decomposition Method. The solution demonstrates that neither frontal shock nor multiple saturation values are the true representation of the displacement process. In another numerical study, the engineering approach eliminates the conventional notion of giving preference to point-distributed grid over the block-centred grid in treating constant pressure boundary problems. This dissertation also finds that theoretically multiple solutions of any natural phenomenon are possible, although, some solutions may not be readily recognizable as meaningful or even 'real'. The complexity is attributed further to non-Darcy condition in well-simulation involving constant production and non-flow boundary. It is shown that the pressure drop predicted by the Forchheimer model is higher than that predicted by the Darcy model at high-velocity and the pseudo-steady velocity is also higher for the Forchheimer model than that for the Darcy model. The numerical results provide comparable accuracy with the results provided by a recent scheme reported to be Deltax4 and Deltat4 accurate. Results of a linear displacement study show that the frontal movement is faster for Forchheimer model than Darcy model in an accumulating reservoir. The effects of depletion or accumulation of fluid in a reservoir on mixing length, displacement efficiency are also reported. Besides, a number of miscible displacement runs are conducted to obtain correlations of areal sweep efficiency as functions of mobility ratio and water-alternating-gas ratio. A comprehensive review on the prospects of laser and modeling of laser-drilling in sandstone and limestone indicate the technology to be the wave in future-drilling. The effects of microwave irradiation phenomenon on immiscible fluids are also studied for temperature profiles and a reasonable accuracy is found between the experimental and numerical results. | en_US |
| dc.description | Thesis (Ph.D.)--Dalhousie University (Canada), 2007. | en_US |
| dc.language | eng | en_US |
| dc.publisher | Dalhousie University | en_US |
| dc.publisher | | en_US |
| dc.subject | Engineering, Civil. | en_US |
| dc.title | Modeling certain complex phenomena that occur within reservoir fluid movements. | en_US |
| dc.type | text | en_US |
| dc.contributor.degree | Ph.D. | en_US |
