基于PLC—液壓控制井下封隔裝置的研發(fā)
[Abstract]:Many of the oil wells in the old oil fields have entered the middle and late stages of production, and the production capacity is often too low. This is due to the reduction of downhole reservoir pressure and the increase of water content after year-round production. In order to ensure production, downhole stimulation measures such as washing well, acidizing, fracturing and so on are needed. For those wells that have too little oil storage and poor production conditions, temporary sealing measures should be adopted for those wells that cannot be produced. Therefore, the study of downhole Packer is of great significance. In this paper, a kind of downhole hydraulic sealing device is designed, which can be used in downhole operation such as well sealing, bottom water plugging, downhole pressure stopping and so on, which can reduce labor intensity and improve working efficiency to a great extent. In the design of downhole hydraulic sealing device, the design principle of Packer and digital hydraulic cylinder is first referred to, and the design is carried out on the basis of these theories. Secondly, according to the calculation of the seated load and the parameters of the downhole hydraulic sealing device, then select the appropriate material, using the simulation software to the rubber cylinder, hydraulic cylinder piston, The accurate static analysis of the important parts such as the central tube and the integral device is carried out, and the corresponding stress cloud diagram is obtained, and then the maximum stress, safety factor and other values are obtained. The PLC- hydraulic control system is used in the device, the flow chart is made, the trapezoidal diagram and software testing are compiled, and the electrification control of downhole Packer is realized. In this paper, the digital hydraulic cylinder and Packer are combined organically, and a kind of downhole hydraulic sealing device is designed, which can reduce the labor intensity and guarantee the safety of operation at the same time.
【學(xué)位授予單位】:東北石油大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TE931.2
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