نتایج جستجو برای: waterflood performance
تعداد نتایج: 1049886 فیلتر نتایج به سال:
this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...
in this thesis, a structured hierarchical methodology based on petri nets is used to introduce a task model for a soccer goalkeeper robot. in real or robot soccer, goalkeeper is an important element which has a key role and challenging features in the game. goalkeeper aims at defending goal from scoring goals by opponent team, actually to prevent the goal from the opponent player’s attacks. thi...
Water flooding technology is an important measure to enhance oil recovery in oilfields. Understanding the pore-scale flow mechanism water process of great significance for optimization development schemes. Viscous action and capillarity are crucial factors determination rate flooding. In this paper, a direct numerical simulation (DNS) method based on Navier–Stokes equation volume fluid (VOF) em...
The Enhanced Oil Recovery (EOR) method aims to increase oil production. One of the EOR methods is CO2 injection. injection mechanism by expanding volume oil, reducing viscosity, and mobility ratio. purpose study was compare recovery factor gain in waterflood, Miscible Continuous injection, WAG with a three-dimensional simulation methodology using CMG Compositional software CW Field. From field,...
magnetic resonance imaging (mri) is a notable medical imaging technique that makes of phenomenon of nuclear magnetic resonance. because of the resolution and the technology being harmless, mri has considered as the most desirable imaging technique in clinical applications. the visual quality of mri plays an important role in accuracy of medical delineations that can be seriously degraded by exi...
this thesis is presented 10 ghz voltage controlled ring oscillator for high speed application. the voltage controlled ring oscillator was designed and fabricated in 0.13یm cmos technology. the oscillator is 7-stages ring oscillator with one inverter replaced by nand-gate for shutting down in the ring oscillator during idle mode. tri-state inverter was used to control of 126 bit vector in ri...
The key ingredients to successful real-time reservoir management, also known as a “closed loop” approach, include efficient optimization and model updating (history matching) algorithms, as well as techniques for efficient uncertainty propagation. This work discusses a simplified implementation of the closed-loop approach that combines efficient optimal control and model updating algorithms for...
Lawrence Livermore National Laboratory (LLNL) is currently involved in a long term study using time-lapse multiple frequency electromagnetic (EM) characterization at a waterflood enhanced oil recovery (EOR) site in California operated by Chevron Heavy Oil Division in Lost Hills, California (Figure 1). The petroleum industry’s interest and the successful imaging results from this project suggest...
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