Systematical Studies of Mechanisms of Multi-thermal Fluid Stimulation for Heavy Oil Recovery
Abstract
This paper studies Multi-thermal Fluid Stimulation (MTFS), a new process being used for offshore heavy oil reservoirs in Bohai oilfield, and successfully applied to development and production of offshore heavy oil reservoirs. However, its mechanisms and reservoir adaptability have not been systematically studied. Toward this end, a series of numerical models are developed and simulation studies are performed to determine the recovery mechanisms and screening criteria for the MTFS. In the NB35-2S reservoir, a homogeneous model is established and compared with field data, the thermal recovery characteristics, the influence of physical property parameters and the optimal thermal injection-production parameters are studied. The MTFS process is shown to enlarge the radius of a thermally swept volume, reduce heat loss, and increase formation energy. On the other hand, the total enthalpy carried by this process drops slightly. Finally, a scope of applications of the MTFS is established.
Description
Keywords
Engineering--Petroleum
Citation
Zhang, T. (2016). Systematical Studies of Mechanisms of Multi-thermal Fluid Stimulation for Heavy Oil Recovery (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27963