A hydraulic experimental monitor system for electric submersible pump (ESP) was designed, which contains data acquisition and monitor interface. Data acquisition applied Advantech Data Acquisition and Siemens Programmable Logic Controller (PLC). Monitor interface applied Monitor and Control Generated System (MCGS). The results prove that the system can control the speed of ESP and display and record many signals, such as flow-rate, pressure, torque, rotation speed, liquid level, etc. The ways of converting analog signals, processing pulse signal and controlling speed are introduced.
Designed a set of hydraulic experimental system for testing some performance parameters of oil drilling and production equipments and demonstrating its functions and principles. This system provided hydraulic environment for pumping unit, ESP (Electric Submersible Pump), well control devices, drilling and workover experiments, collected and analyzed experimental data, provided an important platform for the research and development of oil drilling and production equipments and experiment teaching. The functions and principles of hydraulic system’s components are introduced, and some main components are selected and designed in the system.
After oil and water separation, the produced sewage needs to be treated in a series of ways and injected into the ground if it reaches the discharge standard in oilfields. Sedimentation separation is one of the most important process. In order to study the law of settlement, a set of settlement simulation device was set up, and the raw wastewater was extracted from the oil production plant for settlement experiment, and the relevant data were gathered. Comsol software is used to model and analyse the model. Through comparing the calculation results with the experimental data, the velocity and concentration of liquid-solid two-phase medium change rules are concluded, which lays a foundation for further research on efficient treatment of oilfield sewage.
Aiming at the filtration system in oily wastewater treatment, based on the simulation accuracy of wastewater treatment, the filtration process in wastewater treatment is numerically simulated, the corresponding mathematical model is established, and a hybrid modeling method combining trajectory tracking and network model method is proposed. Based on the analysis and calculation of the mechanical properties of suspended particles in the filter media, considering the coupling relationship between particles and channels, the dynamic displacement and the changes of channel diameter caused by the filtration process, the determination of channel diameter under different arrangement of filter media, the stress types of suspended particles in the channel, the establishment of mechanical model and the distribution of particles in the channel are studied in detail. Through the distance between the particle centre and the channel, it can be judged whether a particle can be adsorbed. From microcosmic to macroscopical, through the concentration calculated by mathematical model of particles and oil, the change rule and filtration effect of suspended particles and oil in the filtration process are obtained. This paper can increase the researchers’ understanding of the trajectory tracking method, improve the accuracy of the proportion of filter materials in the research process of oily wastewater treatment technology, so as to obtain reliable filtration parameters of the target suspended solids.
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