本文選題：流量計 + 壓力傳感器��； 參考：《濟南大學》2017年碩士論文

【摘要】：在石油資源日趨緊張的大環(huán)境下,提高石油鉆井、資源鉆探等生產(chǎn)過程的自動化水平,提高關鍵參數(shù)檢測效率,降低能耗,減少環(huán)境污染是相關技術開發(fā)人員關注的研究熱點。鉆井液流變性參數(shù)是各類鉆井生產(chǎn)過程中必須嚴密監(jiān)控的重要參數(shù),目前采用的測量設備主要是從美國、德國進口,售價昂貴,大都安裝于實驗室,少量可攜帶至生產(chǎn)現(xiàn)場。測量方式為離線。本課題結(jié)合國內(nèi)外現(xiàn)狀,設計出一套直管式在線粘度測量裝置。該裝置主要由測量系統(tǒng)和數(shù)據(jù)采集及處理系統(tǒng)兩部分組成,其中測量系統(tǒng)主要由四部分組成,(1)恒流泵,(2)4段直徑不同的細管,(3)流量計,(4)4組壓力傳感器。采用科里奧利流量計,實現(xiàn)鉆井液密度、溫度和流量測量;流變性參數(shù)用毛細管測量;PH值采用PH儀測量;環(huán)境溫度用兩端式溫度傳感器測量。用微處理器實現(xiàn)自動測量和數(shù)據(jù)采集,PC計算機實現(xiàn)數(shù)據(jù)存儲和處理。數(shù)據(jù)采集及處理系統(tǒng)包括最小系統(tǒng)、數(shù)據(jù)存儲模塊、通信模塊、開關量輸出模塊、模擬量輸入模塊等組成。裝置的表觀黏度測量范圍為5-150mPa·s,測量精度滿足5%的要求,可代替旋轉(zhuǎn)式粘度計用于鉆井液粘度的實時在線測量。本系統(tǒng)選用基于ARM Cortex-M4內(nèi)核的STM32F407單片機作為核心處理器,建立以管段差壓、流量、密度和溫度為輔助變量,以表觀黏度等為主導變量的鉆井液流變性參數(shù)實時測量模型。最后,論文對粘度計在實驗室進行了聯(lián)合調(diào)試,調(diào)試結(jié)果表明,粘度計抗干擾能力強、運行穩(wěn)定且安全可靠。研制的產(chǎn)品具有操作簡單、耗時短、測量結(jié)果便于遠傳等特點,可從根本上改變現(xiàn)有鉆井液流變性參數(shù)測量模式,顯著提高鉆井液流變性等參數(shù)的測量效率,并為促進鉆井生產(chǎn)工藝技術進步,提高鉆井生產(chǎn)自動化水平打下堅實的技術基礎,具有旺盛的市場需求。
[Abstract]:Under the increasingly tight environment of petroleum resources, improving the automation level of oil drilling, resource drilling and other production processes, improving the efficiency of key parameters detection, reducing energy consumption and reducing environmental pollution are the research focus of related technology developers. The rheological parameters of drilling fluid are important parameters which must be closely monitored in various drilling production processes. At present, the measuring equipment used is mainly imported from the United States and Germany, and the price is expensive, most of them are installed in the laboratory, and a few can be carried to the production site. The method of measurement is offline. According to the present situation at home and abroad, a set of straight-tube on-line viscosity measuring device is designed. The device is mainly composed of two parts: measurement system and data acquisition and processing system. The measuring system is mainly composed of four parts, one) four groups of pressure sensors with different diameters of 4 sections of a constant current pump, a thin tube with different diameters, and a flow meter. Coriolis Flowmeter is used to measure the density, temperature and flow rate of drilling fluid, the PH value of rheological parameters is measured by capillary tube and the temperature of environment is measured by two end temperature sensor. Automatic measurement and data acquisition are realized by microprocessor, and data storage and processing are realized by PC computer. The data acquisition and processing system consists of minimum system, data storage module, communication module, switch output module, analog input module and so on. The measuring range of apparent viscosity of the device is 5-150mPa s, and the measuring precision can meet the requirement of 5%. It can be used to measure the viscosity of drilling fluid in real time and online instead of rotary viscometer. In this system, STM32F407 microcontroller based on ARM Cortex-M4 kernel is selected as the core processor, and a real-time measuring model of rheological parameters of drilling fluid is established, which takes differential pressure, flow rate, density and temperature as auxiliary variables and apparent viscosity as dominant variables. Finally, the paper debugs the viscometer in the laboratory. The debugging results show that the viscometer has strong anti-interference ability, stable operation and safe and reliable operation. The developed product has the advantages of simple operation, short time consuming and convenient remote transmission of the measured results. It can fundamentally change the existing measuring mode of rheological parameters of drilling fluid and improve the measuring efficiency of parameters such as rheological property of drilling fluid. It also lays a solid technical foundation for promoting the progress of drilling production technology and improving the level of drilling production automation, and has strong market demand.
【學位授予單位】：濟南大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TE254.1

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