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This work presents a self-powered liquid flow and bubble detection sensor based on the effect of contact-electrification between liquid and solid interface. Charge is driven by the electrostatic induction to flow across outer load without power supply. Single-step fluorocarbon plasma treated PDMS with wrinkle pattern is employed to contact with liquid, which could enhance the electric performance...
In this paper, the law of steam flooding in reservoir with different directional fractures is studied by two measures through numerical simulation. On the basis of geological research on steam flooding in a test area of Daqing Chaoyanggou Oilfield, the ideal geological model is established using Petrel software, and then numerical simulation is carried on applying the STARS simulation module of CMG...
In this paper, theoretical mathematical model of reservoir simulation using tracer is given and an ideal tracer reservoir model is established. Numerical simulation results show that the injected concentration of tracer has no effect on breakthrough time and peak time of the tracer, but breakthrough concentration and peak concentration increase along with the injected tracer concentration. The higher...
The geological model is established with Software Petrel. Then by Eclipse, numerical simulation is done. The development index of block well pattern and remaining oil change condition of well pattern are forecasted. At the same time, comparisons are done between theoretical relationship curve and actual data curve of recovery extent and water cut for the whole block and sublayers. Adaptability is...
During the production of oilfield, it is necessary to understand the strata pressure in the recovery process, which is the so-called current formation pressure. However, how to choose the pressure monitoring well point correctly is one of the important tasks in the oilfield development. Usually the simplest method of understanding the strata pressure is actual measurement, but in order to get the...
With the rapid development of computer, applied mathematics and reservoir engineering, which have provided a technology platform for the scientific management, digitalization and informationization of reservoir, the integration research of geological modeling and numerical simulation is more and more emphasized in oilfield. In this paper, the mathematical theory of streamline simulation is given....
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