Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"Pressure depletion"”.
-
Experimental Study on Foamy Oil Flow by Using Different heavy Oil-Solvent Systems
… and the production performance effects of pressure depletion rates on foamy oil flow have been studied, it remains difficult to understand the process clearly. Meanwhile, many oil samples used in previous studies were on heavy oil-methane systems or heavy oil-CO2 systems, rarely on heavy …
-
Experimental Study on Improving the Waterflooding Potential in Different Heavy Oil-Solvent Systems
… previous studies, the parameters related to the pressure change, such as the injection rate, the start time of waterflooding, the voidage replacement ratio (VRR) control, etc., have been studied to take full advantage of the nature energies in heavy oil waterflooding processes. However, few …
-
Characterization of Gas-Oil Flow in Cyclic Solvent Injection (CSI) for Heavy Oil Recovery
… the characteristics that strongly depend on the pressure depletion rate and the growing solvent chamber. This study is aimed at characterizing the gas-oil flow in CSI for heavy oil recovery at different pressure depletion rates under the effect of the growing solvent chamber. To fulfill the …
-
Microfluidic investigation of cyclic solvent injection: from reservoir-on-the-chip to large scale
… systems, it was found that solvent type, pressure depletion rate, and reservoir characteristics had a significant influence on the extension of foamy oil flow. Accordingly, solvents containing a higher proportion of CO2 exhibited superior performance, primarily due to their ability to …
-
Coal bed methane reservoir simulation studies
… simulator, SIMED II. Injection/fall-off test pressure data were interpreted based on the pressure history matching method. The interpretation results include the determination of reservoir permeability and identification of the reservoir altered zone. Also available production histories were …
-
Study on the Feasibility of Nitrogen Huff-N-Puff in Heavy Oil Reservoirs
… increase of 5 ℃, and each temperature has four pressure setting of 3 to 8 MPa. It was found that nitrogen has a lower solubility than carbon dioxide and methane. The solubility of nitrogen in the oil sample at 50℃ and 7 MPa is 7.6 m3/m3. The second category is the pressure depletion tests …
-
Experimental Study of Heavy Oil Recovery Mechanisms during Cyclic Solvent Injection Processes
… and vertical mode injection at high- and low-pressure depletion rates using two solvent mixtures of CH4 and C3H8. The sandpack was Computed Tomography scanned after every cycle to analyze the evolution of gas and oil saturations. Three cores were used to study the effect of gravity forces, …
-
Pressure estimation using time-lapse seismic in compacting reservoirs
… focuses on developing a new approach to estimate pressure changes from 4D amplitude attributes in compacting reservoirs. The time-lapse seismic signal in these types of reservoirs results from the combination of pressure depletion, rock compaction and stress redistribution within the reservoir and …
-
An Improved Vapour Solvent Injection Technique for Enhanced Heavy Oil Recovery
… does not show exciting results due to the quick pressure depletion and the sudden reservoir energy loss, which causes the oil to regain its viscosity. Thus, a more effective solvent injection technique is urgently required to overcome the disadvantages in traditional solvent injection processes. …
-
Role of sulphates and chloride ions in improved oil recovery in a hybrid smart-low salinity flooding technique
… possible through the natural energy (in form of pressure) which forces the resources to the surface. The oil production from the well will eventually decline steadily due to pressure depletion associated with it and production will be halted. Studies have shown that almost 300 billion barrels of …
-
Exploring anisotropy in rock fluid flow and elastic behavior
… As hydrocarbons are produced and reservoir pressure depletes, the change in stress state induces a change in the reservoir permeability. The error associated with the assumption that permeability change is the same in all directions, often used in industry, is assessed by comparing an …