發(fā)布時(shí)間：2018-05-01 02:17

  本文選題：石油鉆井 + 隨鉆測(cè)控��； 參考：《華中科技大學(xué)》2015年碩士論文

【摘要】：隨著石油鉆井技術(shù)向信息化、智能化方向的發(fā)展,隨鉆測(cè)控在鉆井作業(yè)中承擔(dān)著越來(lái)越重要的作用。電磁感應(yīng)數(shù)據(jù)短傳技術(shù)是實(shí)現(xiàn)對(duì)井下工具隨鉆測(cè)控的有效方式之一,但井下劇烈震動(dòng)、高溫高壓、泥漿介質(zhì)和金屬鉆桿電磁干擾等問(wèn)題都給電磁感應(yīng)數(shù)據(jù)短傳技術(shù)帶來(lái)了巨大的挑戰(zhàn),所以選擇哪種數(shù)據(jù)傳輸方式、分析井下復(fù)雜環(huán)境對(duì)電磁感應(yīng)數(shù)據(jù)短傳通信性能影響的機(jī)理、采用何種方式來(lái)削弱這種影響成為本文研究的重點(diǎn)。針對(duì)隨鉆測(cè)控中井下工具與地面平臺(tái)有效數(shù)據(jù)傳輸?shù)男枨?在研究現(xiàn)有隨鉆測(cè)控?cái)?shù)據(jù)傳輸方式優(yōu)缺點(diǎn)基礎(chǔ)上提出基于RFID技術(shù)和電磁感應(yīng)數(shù)據(jù)短傳技術(shù)相結(jié)合的隨鉆測(cè)控?cái)?shù)據(jù)傳輸系統(tǒng),并重點(diǎn)研究了電磁感應(yīng)數(shù)據(jù)短傳系統(tǒng)。建立磁感應(yīng)耦合信道等效電路模型和物理模型,分析金屬鉆桿和泥漿介質(zhì)對(duì)磁感應(yīng)信道通信性能的影響機(jī)理;提出帶鐵氧體磁環(huán)的耦合結(jié)構(gòu)方案來(lái)降低復(fù)雜環(huán)境對(duì)磁感應(yīng)信道通信性能的影響,分析耦合結(jié)構(gòu)中鐵氧體磁環(huán)各結(jié)構(gòu)參數(shù)對(duì)磁感應(yīng)耦合系統(tǒng)耦合性能的影響,進(jìn)而優(yōu)化設(shè)計(jì)鐵氧體環(huán)的各結(jié)構(gòu)參數(shù)。采用二進(jìn)制頻移鍵控法調(diào)制解調(diào),設(shè)計(jì)基于直接數(shù)字合成(DDS)芯片AD9834的調(diào)制電路和基于鎖相環(huán)芯片SE564的解調(diào)電路,編寫(xiě)調(diào)制解調(diào)芯片控制程序;采用放大器芯片OPA2674設(shè)計(jì)放大電路,采用單刀雙擲模擬開(kāi)關(guān)芯片TS5A12301E設(shè)計(jì)信號(hào)傳輸方向選擇電路,實(shí)現(xiàn)數(shù)據(jù)傳輸率達(dá)到12kbps的半雙工通信。搭建電磁感應(yīng)數(shù)據(jù)短傳系統(tǒng)實(shí)驗(yàn)平臺(tái),測(cè)試金屬鉆桿、泥漿環(huán)境、耦合器結(jié)構(gòu)參數(shù)對(duì)耦合性能的影響,將測(cè)試結(jié)果與有限元分析結(jié)果進(jìn)行對(duì)比,發(fā)現(xiàn)測(cè)試結(jié)果和仿真結(jié)果較為吻合,驗(yàn)證了感應(yīng)耦合器優(yōu)化設(shè)計(jì)的合理性。完成基于RFID技術(shù)和電磁感應(yīng)數(shù)據(jù)短傳技術(shù)相結(jié)合的隨鉆測(cè)控系統(tǒng)的集成裝配,該系統(tǒng)成功參展第十五屆中國(guó)國(guó)際石油石化技術(shù)裝備展覽會(huì)(CIPPE)。
[Abstract]:With the development of oil drilling technology towards information and intelligence, the measurement and control while drilling is playing a more and more important role in drilling operation. The technology of short transmission of electromagnetic induction data is one of the effective ways to measure and control downhole tools while drilling. The problems of electromagnetic interference of mud medium and metal drill pipe bring great challenge to the short-transmission technology of electromagnetic induction data, so the mechanism of which data transmission mode is chosen to analyze the influence of complex underground environment on the short-transmission communication performance of electromagnetic induction data is analyzed. How to weaken this kind of influence becomes the focal point of this paper. Aiming at the demand of effective data transmission between downhole tools and ground platform in measurement and control while drilling, Based on the research on the advantages and disadvantages of the existing data transmission methods while drilling measurement and control, a data transmission system based on the combination of RFID technology and electromagnetic induction data short transmission technology is proposed, and the electromagnetic induction data short transmission system is studied emphatically. The equivalent circuit model and physical model of magnetic induction coupling channel are established to analyze the influence mechanism of metal drill pipe and mud medium on the communication performance of magnetic induction channel. A coupling structure with ferrite ring is proposed to reduce the influence of complex environment on the communication performance of magnetic induction channel. The influence of the structure parameters of ferrite magnetic ring on the coupling performance of magnetic induction coupling system is analyzed. Then the structural parameters of ferrite ring are optimized. The modulation circuit based on direct digital synthesis (DDS) chip AD9834 and the demodulation circuit based on phase-locked loop chip (SE564) are designed by using binary frequency shift keying method, and the control program of modulation and demodulation chip is compiled, and the amplifier chip OPA2674 is used to design the amplifier circuit. A single pole double throw analog switch chip TS5A12301E is used to design the signal transmission direction selection circuit. The half-duplex communication with data transmission rate up to 12kbps is realized. The experiment platform of short transmission system of electromagnetic induction data is built to test the influence of metal drill pipe, mud environment and coupler structure parameters on the coupling performance. The test results are compared with the results of finite element analysis. It is found that the test results are in good agreement with the simulation results, which verifies the rationality of the optimal design of the inductive coupler. The integrated assembly of measurement and control system while drilling is completed based on RFID technology and short transmission technology of electromagnetic induction data. The system successfully participated in the 15th China International Petroleum and Petrochemical Technology and equipment Exhibition.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE928

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