本文選題：巖石勘探　切入點：介電常數(shù)　出處：《電子科技大學》2015年碩士論文　論文類型：學位論文

【摘要】：隨著21世紀的經(jīng)濟迅速發(fā)展,人們現(xiàn)代化生活日新月異,工業(yè)化生產(chǎn)越來越具規(guī)模,石油逐漸成為人們?nèi)粘Ｉ钪斜夭豢扇钡纳钯Y源,對于現(xiàn)代化工業(yè)生產(chǎn)的加工設備也成為一種必需的能源材料�，F(xiàn)在我們對于石油資源的勘探主要采用的是一種利用不同介質(zhì)材料的物理性質(zhì)不同的原理方法來進行實施的。研究各種材料電參數(shù)的測試原理已經(jīng)有很長的歷史,對于電參數(shù)測試方法來說,不同時代的電磁建模具有不同的理論水平,不同的方程式求解途徑以及測試儀器的粗細精度水平不同,它們共同對電參量測試技術的發(fā)展產(chǎn)生了重要影響。本論文著重分析了開口同軸探頭的測量原理,在該測試系統(tǒng)中開口同軸探頭是傳感器,具有超寬頻特性,可廣泛應用于各種介質(zhì)材料的電參量的測試。隨著測試技術的快速發(fā)展,同軸探頭測試技術越來越具有很好的科研研究價值和發(fā)展實用空間。在鉆孔雷達的探測中,介質(zhì)介電常數(shù)的設置直接關系到探測深度的準確程度。不同地區(qū)或工程中介質(zhì)的(相對介電常數(shù))往往差別很大。介質(zhì)的r?是個動態(tài)參量,即使是同一介質(zhì),由于其所處的物質(zhì)架構和物理環(huán)境的不同,它的r?也不相同。所以,在實際工作中就必須要因地制宜,對現(xiàn)場待測介質(zhì)的r?進行采樣測量。對于大多數(shù)的科研生產(chǎn)單位來說,他們并不具備在實驗室中直接采用介電常數(shù)測試儀來精確測量待測樣品介電常數(shù)的條件。所以,本論文主要開展針對鉆孔雷達巖石介電常數(shù)測試系統(tǒng)的研究。我們利用已有的微波測試原理,第一,介紹了已有的測量材料電參數(shù)的測試方法,分析和歸納了各種測試方法的優(yōu)缺點;第二,著重研究了開口同軸探頭測量技術基本原理,其中包括其物理模型和理論模型的發(fā)展及現(xiàn)狀,并根據(jù)譜域準靜態(tài)模型算法利用Matlab軟件設計了簡單快捷的數(shù)據(jù)計算界面;第三,結合實驗室自身條件的情況下,基于電磁仿真工具軟件CST對整個測試系統(tǒng)進行了電磁仿真,公式推導,程序編寫運行和樣品實際測量,搭建了實驗測試系統(tǒng)平臺;第四,得到滿足精度要求的測量結果,與安捷倫公司已有的電參數(shù)測量儀器測得的數(shù)據(jù)進行比較,并進行誤差分析。通過對地下巖石樣品電參數(shù)的測量,可以滿足鉆孔雷達勘探對于地下石油位置的獲取,對于微波遙感具有重要的意義。
[Abstract]:With the rapid development of economy in 21th century, people's modern life is changing with each passing day, and industrial production is becoming more and more large-scale. Oil has gradually become an indispensable living resource in people's daily life. Processing equipment for modern industrial production has also become a necessary energy material. Now our exploration for petroleum resources is mainly based on the principle of different physical properties of different medium materials. It has a long history of studying the testing principles of electrical parameters of various materials. For electric parameter testing methods, electromagnetic modeling in different times has different theoretical levels, different ways of solving equations and different precision levels of measuring instruments. In this paper, the measurement principle of the open coaxial probe is analyzed. In this system, the open coaxial probe is a sensor, and it has the characteristic of ultra wide band (UWB). With the rapid development of testing technology, coaxial probe testing technology has more and more scientific research value and practical space. In drilling radar detection, The setting of dielectric permittivity is directly related to the accuracy of the detection depth. The dielectric (relative permittivity) of different regions or projects often varies greatly. Is a dynamic parameter, even if the same medium, because of its physical structure and physical environment, its r? Also not the same. Therefore, in the actual work must be in line with the local conditions, on the site of the medium to be measured r? For most research and production units, they do not have the conditions to accurately measure the permittivity of the samples to be tested directly in the laboratory by means of a permittivity tester. This paper mainly focuses on the research of rock dielectric constant measurement system based on borehole radar. We use the existing microwave testing principle. Firstly, we introduce the existing measurement methods for measuring the electrical parameters of materials. The advantages and disadvantages of various testing methods are analyzed and summarized. Secondly, the basic principle of open coaxial probe measurement technology is emphatically studied, including the development and present situation of its physical model and theoretical model. According to the spectral domain quasi-static model algorithm, a simple and fast data calculation interface is designed by using Matlab software. Thirdly, the electromagnetic simulation of the whole test system is carried out based on the electromagnetic simulation tool CST under the condition of the laboratory itself. Formula derivation, programming operation and sample actual measurement, the experimental test system platform was set up. 4th, the measurement results satisfying the precision requirements were obtained and compared with the measured data obtained by the electrical parameter measuring instruments of Agilent Company. Through the measurement of electrical parameters of underground rock samples, it can be satisfied that drilling radar exploration can obtain the location of underground oil, and it is of great significance for microwave remote sensing.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P631.3

【參考文獻】

相關博士學位論文 前1條

1 陳春平;開口同軸探頭同時測量復電磁參數(shù)技術理論研究與實踐[D];上海大學;2004年

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本文編號：1598520