本文選題：隨鉆 + 泥漿脈沖　； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：隨著石油資源的不斷衰減,石油開(kāi)采工作也變得愈加困難,油井結(jié)構(gòu)越來(lái)越復(fù)雜,原油開(kāi)采深度越來(lái)越深,開(kāi)采儀器所需提供的數(shù)據(jù)越來(lái)越多,測(cè)井資料的獲取越來(lái)越不易,如何解決此問(wèn)題成為相關(guān)研究人員關(guān)注的熱點(diǎn)。在鉆井施工中,采用隨鉆測(cè)井技術(shù)獲取井眼軌跡和該地區(qū)地質(zhì)參數(shù)等信息,將獲取到的地下信息及時(shí)傳輸給地面分析儀器進(jìn)行數(shù)據(jù)信息處理,不僅有利于開(kāi)采工作的順利進(jìn)行,也有利于隨鉆測(cè)井技術(shù)的進(jìn)一步發(fā)展。隨著各種技術(shù)的發(fā)展進(jìn)步,油井井下數(shù)據(jù)的傳輸方式由傳統(tǒng)有線傳輸方式向著無(wú)線傳輸方式轉(zhuǎn)變,傳輸速度由低速傳輸向著高速傳輸發(fā)展。當(dāng)前油井井下數(shù)據(jù)無(wú)線傳輸?shù)哪Ｊ街饕煞譃槟酀{脈沖數(shù)據(jù)傳輸和電磁脈沖數(shù)據(jù)傳輸兩種模式,其中泥漿脈沖數(shù)據(jù)傳輸中的脈沖信號(hào)可以分為正脈沖信號(hào)、負(fù)脈沖信號(hào)和連續(xù)波脈沖信號(hào),現(xiàn)階段油井井下數(shù)據(jù)無(wú)線傳輸信號(hào)多采用泥漿作為傳輸介質(zhì),泥漿脈沖信號(hào)數(shù)據(jù)傳輸將井下信息以泥漿脈沖的形式傳輸?shù)降孛嫔?再利用地面?zhèn)鞲衅鲗@取的泥漿脈沖信號(hào)進(jìn)行必要的預(yù)處理,轉(zhuǎn)換為處理器能夠識(shí)別的信號(hào)并通過(guò)顯示器進(jìn)行顯示,以方便現(xiàn)場(chǎng)工作人員進(jìn)行下一步的處理操作。本文對(duì)泥漿脈沖隨鉆測(cè)井儀信號(hào)傳輸及其處理方法進(jìn)行研究,以MC68HC711系列單片機(jī)作為核心處理器,設(shè)計(jì)能夠滿足實(shí)際施工要求的泥漿脈沖器的控制電路;利用曼特斯特解碼方法實(shí)現(xiàn)對(duì)泥漿脈沖信號(hào)的分析與提取;選擇FIR數(shù)字濾波器對(duì)脈沖信號(hào)進(jìn)行濾波;目的都是在實(shí)際施工過(guò)程中有效提高地面儀器信號(hào)檢測(cè)的準(zhǔn)確性與可靠性。
[Abstract]:With the continuous decline of petroleum resources, oil extraction becomes more and more difficult, the structure of oil wells is more and more complex, the depth of crude oil production is getting deeper and deeper, more and more data need to be provided by exploitation tools, and the acquisition of logging data is becoming more and more difficult.How to solve this problem has become the focus of attention of relevant researchers.In drilling operation, using logging while drilling technology to obtain well trajectory and geological parameters in this area, the obtained underground information is transmitted to the surface analysis instrument in time for data processing, which is not only conducive to the smooth progress of mining work.It is also beneficial to the further development of logging technology while drilling.With the development of various technologies, the transmission mode of downhole data in oil wells has changed from traditional wired transmission to wireless transmission, and the transmission speed has changed from low speed transmission to high speed transmission.At present, the mode of wireless transmission of downhole data in oil wells can be divided into two modes: mud pulse data transmission and electromagnetic pulse data transmission, in which the pulse signal in mud pulse data transmission can be divided into positive pulse signal.Negative pulse signal and continuous wave pulse signal, at present, mud is used as transmission medium for wireless transmission of downhole data in oil wells. Mud pulse signal data transmission transfers downhole information to the ground in the form of mud pulse.Then ground sensor is used to preprocess the obtained mud pulse signal and convert it into a signal which the processor can recognize and display through the display, so as to facilitate the field workers to handle the next step.In this paper, the signal transmission and processing method of mud pulse while drilling logging tool are studied. The control circuit of mud pulse device which can meet the practical construction requirements is designed with MC68HC711 series single chip microcomputer as the core processor.The mud pulse signal is analyzed and extracted by Mantester decoding method; the FIR digital filter is selected to filter the pulse signal; the purpose is to improve the accuracy and reliability of the ground instrument signal detection effectively in the actual construction process.
【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(lèi)號(hào)】：TE927

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