本文選題：核磁共振 + T_2截止值��； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：為了促進(jìn)核磁共振測(cè)井技術(shù)在SN地區(qū)的推廣和應(yīng)用,論文通過(guò)系統(tǒng)分析巖心樣品核磁實(shí)驗(yàn)數(shù)據(jù),深入分析并總結(jié)飽和T_2譜和離心T_2譜在形態(tài)上的關(guān)聯(lián)性和相似性,研究壓汞毛管壓力資料刻度測(cè)井T_2譜積分曲線的方法,研究利用巖心實(shí)驗(yàn)分析數(shù)據(jù)、核磁測(cè)井資料、常規(guī)測(cè)井資料來(lái)確定儲(chǔ)層分類(lèi)參數(shù)等手段,建立了一套相對(duì)完善的形態(tài)法確定T_2截止值的方法、T_2譜與壓汞毛管壓力曲線標(biāo)定的方法以及利用核磁測(cè)井實(shí)驗(yàn)數(shù)據(jù)進(jìn)行儲(chǔ)層分類(lèi)的方法。論文通過(guò)對(duì)實(shí)驗(yàn)數(shù)據(jù)的分析,提出了根據(jù)核磁測(cè)井T_2譜形態(tài)特征對(duì)測(cè)井T_2譜分類(lèi)并確定其T_2截止值的新方法,建立了逐點(diǎn)自動(dòng)確定核磁測(cè)井T_2截止值的新技術(shù)。論文明確指出了毛管壓力曲線與核磁測(cè)井T_2譜積分曲線的非線性轉(zhuǎn)換關(guān)系,發(fā)展了傳統(tǒng)的單一線性系數(shù)刻度方法。建立了按儲(chǔ)層類(lèi)型定量刻度核磁測(cè)井T_2譜的實(shí)用方法和技術(shù)。根據(jù)核磁測(cè)井資料計(jì)算的儲(chǔ)層參數(shù),將儲(chǔ)層分為中高孔中高滲、中孔中滲、低孔低滲和特低孔特低滲四種類(lèi)型,分別對(duì)每一類(lèi)儲(chǔ)層建立了各自的刻度模型,實(shí)現(xiàn)了核磁測(cè)井毛管壓力曲線的轉(zhuǎn)換和孔徑分布譜定量計(jì)算。利用核磁共振數(shù)據(jù)處理計(jì)算的儲(chǔ)層宏、微觀參數(shù),論文對(duì)不同類(lèi)型儲(chǔ)層的特征結(jié)合常規(guī)測(cè)井的研究,對(duì)儲(chǔ)層進(jìn)行進(jìn)一步分類(lèi),同時(shí)對(duì)每種儲(chǔ)層的特征進(jìn)行了宏、微觀表征。實(shí)踐表明,此次建立以核磁測(cè)井為主的測(cè)井綜合評(píng)價(jià)儲(chǔ)層及儲(chǔ)層分類(lèi)的方法與技術(shù)指標(biāo)體系可以實(shí)用于目標(biāo)區(qū),并可進(jìn)一步推廣到準(zhǔn)噶爾盆地油氣勘探開(kāi)發(fā)的儲(chǔ)層評(píng)價(jià)工作中。
[Abstract]:In order to promote the extension and application of NMR logging technology in SN region, the paper analyzes the nuclear magnetic field (NMR) experimental data of core samples systematically, analyzes and summarizes the morphological correlation and similarity between saturated T _ 2 spectrum and centrifugal T _ 2 spectrum. This paper studies the method of calibrating the T _ 2 spectrum integral curve of pressure data of mercury-infill capillary, and studies the methods of determining reservoir classification parameters by using core experimental analysis data, nuclear magnetic logging data and conventional logging data, etc. A set of relatively perfect morphological method for determining T _ 2 cutoff value is established. The calibration method of T _ 2 spectrum and mercury injection capillary pressure curve and the method of reservoir classification based on nuclear magnetic logging experimental data are established. Based on the analysis of the experimental data, a new method of classifying and determining the T _ 2 cutoff value of nuclear magnetic logging (NMR) logging is proposed according to the morphological characteristics of the Tflesh _ 2 spectrum. A new technique for automatically determining the T _ 2 cutoff value of nuclear magnetic logging is established. In this paper, the nonlinear transformation relationship between capillary pressure curve and nuclear magnetic logging Tass 2 spectrum integral curve is pointed out, and the traditional single linear coefficient calibration method is developed. A practical method and technique for quantificationally calibrating nuclear magnetic logging Tass _ 2 spectrum according to reservoir type is established. According to the reservoir parameters calculated by nuclear magnetic logging data, the reservoir is divided into four types: medium and high porosity and high permeability, middle porosity and medium permeability, low porosity and low permeability, and very low porosity and ultra-low permeability. The calibration models for each kind of reservoir are established respectively. The conversion of capillary pressure curve and quantitative calculation of pore size distribution spectrum are realized. By using the macro and micro parameters calculated by nuclear magnetic resonance data processing, the characteristics of different types of reservoirs combined with the study of conventional logging are further classified in this paper. At the same time, the characteristics of each reservoir are characterized by macroscopes and microscopes. The practice shows that the method and technical index system of comprehensive evaluation of reservoir and reservoir classification based on nuclear magnetic logging can be applied to the target area and can be further extended to the reservoir evaluation of oil and gas exploration and development in Junggar Basin.
【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)】：P618.13;P631.81
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本文編號(hào)：1789371