本文選題：智能完井 + 地層流體控制��； 參考：《西安石油大學》2015年碩士論文

【摘要】：智能完井技術能控制同一井眼不同地層或層段的流體,從而實現(xiàn)油氣藏的有選擇、有控制的開采,不僅能提高單井原油產量,而且能最終提高油田的采收率。智能完井在國外已有十多年的應用實踐,但國內目前尚無成熟的智能完井技術。針對國內小井眼井井下地層流體控制的迫切需要,研制一種能在''521井眼中下入的井下流體控制裝置,其應用前景廣闊。本文分析了小井眼的井下空間限制特性,按照''521井眼的常規(guī)結構,設計了一種能在''521井眼中下入的井下流體控制裝置(簡稱滑套閥)。該裝置采用電機驅動,其結構形式為滑套——閥筒形式,工作方式為連續(xù)流體控制。設計了相應的執(zhí)行機構驅動電路,制成了一套滑套閥模型樣機。按照井下測控要求,完成了井下溫度、壓力、電機參數(shù)等測量模塊的電路設計和數(shù)據采集處理軟件設計,并進行了測量模塊的性能測試�；诓顒幼儔浩髟�,自主設計、加工制作了閥門開度傳感器,進行了溫度特性測試,并提出了其溫度補償方法。按照地面監(jiān)控系統(tǒng)與井下節(jié)點的通信需求,設計了基于CAN總線的全電動智能井通信系統(tǒng),定義了其數(shù)據幀結構,完成了其軟硬件設計,制成了井口節(jié)點及具有測量、控制和通信功能的井下智能節(jié)點,完成了地面監(jiān)控系統(tǒng)的初步設計。對井下智能節(jié)點與井口節(jié)點的聯(lián)合測試表明:地面監(jiān)控系統(tǒng)能實時獲取地層測量參數(shù),測量及通信功能滿足設計要求;能實現(xiàn)滑套閥的遠程遙控,滑套閥動作靈活,控制可靠,開度測量反饋信號準確,達到了預期設計目標。這些研究工作為進一步研究全電動智能井技術提供了有益參考。按照所作的設計,參考所制成的模型樣機,目前正在進行原理樣機的機械加工、裝配和調試等研究工作。
[Abstract]:The intelligent completion technology can control the fluid in different formation or interval of the same hole, thus realize the selective and controlled exploitation of oil and gas reservoir, which can not only increase the crude oil production of single well, but also improve the oil recovery finally. Intelligent well completion has been applied in foreign countries for more than ten years, but there is no mature intelligent completion technology in China. In view of the urgent need of downhole formation fluid control in small borehole wells in China, a downhole fluid control device which can be used in the hole of Yinjian 521 well is developed, which has a broad application prospect. In this paper, the space limitation characteristics of small hole are analyzed, and a downhole fluid control device (referred to as sliding-casing valve) is designed according to the conventional structure of Yanzhi521 well. The device is driven by motor, its structure form is sliding sleeve-valve tube, and its working mode is continuous fluid control. The driving circuit of the actuator is designed and a prototype of the sliding sleeve valve model is made. According to the requirements of underground measurement and control, the circuit design and data acquisition and processing software design of underground temperature, pressure, motor parameters and other measurement modules are completed, and the performance of the measurement module is tested. Based on the principle of differential transformer, the valve opening sensor is designed and manufactured independently, the temperature characteristic is tested, and the method of temperature compensation is put forward. According to the communication requirement between ground monitoring system and underground node, an all-electric intelligent well communication system based on CAN bus is designed, its data frame structure is defined, its software and hardware design is completed, and the well head node and its measurement are made. Control and communication functions of the underground intelligent node, completed the preliminary design of the ground monitoring system. The joint test of intelligent node and wellhead node shows that the ground monitoring system can obtain the parameters of formation measurement in real time, and the functions of measurement and communication can meet the design requirements, the remote control of sliding sleeve valve can be realized, the sliding sleeve valve can be operated flexibly, and the control is reliable. The feedback signal of open-degree measurement is accurate and achieves the expected design goal. These studies provide a useful reference for the further study of all-electric intelligent well technology. According to the design and reference of the model prototype, the research work of machining, assembling and debugging of the principle prototype is being carried out at present.
【學位授予單位】：西安石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE928;TP273.5

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