本文關(guān)鍵詞： 韓城地區(qū) 煤體結(jié)構(gòu) 分布規(guī)律 測(cè)井響應(yīng) 煤體結(jié)構(gòu)指數(shù)N和RLLD/RMSFL　出處：《太原理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：韓城地區(qū)煤層結(jié)構(gòu)破壞嚴(yán)重，煤體結(jié)構(gòu)復(fù)雜，目前區(qū)內(nèi)煤體結(jié)構(gòu)的分布規(guī)律研究尚且不足，不能滿足煤層氣選區(qū)及開(kāi)發(fā)評(píng)價(jià)工作的要求。 本次研究基于韓城地區(qū)測(cè)井資料與煤芯樣品對(duì)比分析，采用灰分與自然伽馬正相關(guān)歸位法，對(duì)韓城地區(qū)的煤芯進(jìn)行了歸位。用趨勢(shì)面分析法對(duì)測(cè)井資料進(jìn)行了標(biāo)準(zhǔn)化，并研究了不同煤體結(jié)構(gòu)的測(cè)井響應(yīng)特征。研究表明：韓城地區(qū)煤層中構(gòu)造煤測(cè)井響應(yīng)表現(xiàn)為補(bǔ)償聲波大、補(bǔ)償密度小、井徑大等特征，與原生煤存在差異，通過(guò)補(bǔ)償聲波、補(bǔ)償密度、井徑三條測(cè)井曲線的有效組合可反映并且放大定性判識(shí)的特征；同時(shí)還發(fā)現(xiàn)在構(gòu)造煤層段，微球形聚焦電阻率測(cè)井響應(yīng)值特別低，，利用深側(cè)向電阻率和微球形聚焦電阻率的組合RLLD/RMSFL能夠更好的判識(shí)煤體結(jié)構(gòu)。為減小單一判識(shí)方法的誤差，本文在研究區(qū)利用煤體結(jié)構(gòu)指數(shù)N和RLLD/RMSFL交匯定量識(shí)別構(gòu)造煤，建立了研究區(qū)5、11號(hào)煤層煤體結(jié)構(gòu)判識(shí)的方法。應(yīng)用結(jié)果表明，利用該方法劃分的煤體結(jié)構(gòu)與煤芯劃分的結(jié)果基本一致，驗(yàn)證了本文利用煤體結(jié)構(gòu)指數(shù)N和RLLD/RMSFL劃分煤體結(jié)構(gòu)是可行的。 進(jìn)一步通過(guò)對(duì)研究區(qū)110口煤層氣井的測(cè)井資料的分析，揭示5號(hào)和11號(hào)煤層煤體結(jié)構(gòu)分布規(guī)律及其影響因素。研究表明，5號(hào)煤層煤體結(jié)構(gòu)破壞嚴(yán)重，Ⅰ類煤不發(fā)育，僅在研究區(qū)中北部區(qū)的東部以及南部區(qū)的東部地區(qū)少量發(fā)育；11號(hào)煤層煤體結(jié)構(gòu)相對(duì)較好，大部分地區(qū)都有Ⅰ類煤分布。研究區(qū)的煤體結(jié)構(gòu)分布主要受斷裂構(gòu)造控制，薛峰北逆斷裂帶煤體結(jié)構(gòu)破壞嚴(yán)重，東澤村正斷裂帶煤體結(jié)構(gòu)破壞相對(duì)較弱，在研究區(qū)北中部小背斜帶以及研究區(qū)南部的小斷裂發(fā)育區(qū)煤體結(jié)構(gòu)也有一定程度的破壞；其次，受頂?shù)装鍘r石力學(xué)性質(zhì)差異的影響，5號(hào)煤層煤體結(jié)構(gòu)的破壞程度比11號(hào)煤層煤體結(jié)構(gòu)嚴(yán)重。
[Abstract]:The coal seam structure in Hancheng area is seriously damaged and the coal structure is complex. At present, the research on the distribution law of coal structure is not enough, which can not meet the requirements of coalbed methane selection and development evaluation.
The research on comparison and analysis of logging data and core samples of coal in Hancheng area based on the ash and natural gamma is related to coal core homing method, the Hancheng area has been in place. The standardization of well logging data by using the method of trend surface analysis, and the effects of different coal structure well logging response characteristics. The results show that response performance for large compensated acoustic logging data in Hancheng area of tectonic coal in coal seam, compensation density, hole diameter and other features, there are differences with the original coal, by compensating the acoustic wave, density compensation, effective combination of well logging curve can be the size of three reflects the characteristics and amplification of qualitative identification; it is also found in the construction of coal seams section microspherically focused resistivity logging response value is particularly low, using a combination of RLLD/RMSFL and deep lateral resistivity microspherically focused resistivity can identify the coal structure better. In order to reduce the error identification method of the single sentence, the In the study area using coal structure index N and RLLD/RMSFL intersection quantitative identification method was established to study the structure of coal, District No. 5,11 coal seam structure identification. The application results show that the method of dividing coal structure and coal core division results, verified by the coal structure index and N RLLD/RMSFL classification of coalbody structure is feasible.
Through further analysis of logging data of 110 CBM wells, revealing the No. 5 and No. 11 coal seam of coal structure distribution and its influencing factors. The study shows that the No. 5 coal seam of coal body structure damaged seriously, not only of coal development in the study area in the northern region of the eastern and southern area of the East a small amount of area development; No. 11 coal seam of coal body structure is relatively good, most regions have type coal distribution. Distribution of coal structure in the study area is mainly controlled by faults, Xue North thrust belt of coal structure destruction, destruction of relatively weak coal structure donze village fault zone in the study area, north central small small fault anticline belt and the southern part of the study area has a certain degree of damage zones in coal structure; secondly, affected by the difference of top floor rock mechanics, damage degree of No. 5 coal than No. 11 coal seam of coal body structure It's serious.

【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.11;P631.81

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