發(fā)布時間：2018-01-23 11:47

  本文關鍵詞： 韓城地區(qū) 煤體結構 分布規(guī)律 測井響應 煤體結構指數(shù)N和RLLD/RMSFL　出處：《太原理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：韓城地區(qū)煤層結構破壞嚴重，煤體結構復雜，目前區(qū)內煤體結構的分布規(guī)律研究尚且不足，不能滿足煤層氣選區(qū)及開發(fā)評價工作的要求。 本次研究基于韓城地區(qū)測井資料與煤芯樣品對比分析，采用灰分與自然伽馬正相關歸位法，對韓城地區(qū)的煤芯進行了歸位。用趨勢面分析法對測井資料進行了標準化，并研究了不同煤體結構的測井響應特征。研究表明：韓城地區(qū)煤層中構造煤測井響應表現(xiàn)為補償聲波大、補償密度小、井徑大等特征，與原生煤存在差異，通過補償聲波、補償密度、井徑三條測井曲線的有效組合可反映并且放大定性判識的特征；同時還發(fā)現(xiàn)在構造煤層段，微球形聚焦電阻率測井響應值特別低，，利用深側向電阻率和微球形聚焦電阻率的組合RLLD/RMSFL能夠更好的判識煤體結構。為減小單一判識方法的誤差，本文在研究區(qū)利用煤體結構指數(shù)N和RLLD/RMSFL交匯定量識別構造煤，建立了研究區(qū)5、11號煤層煤體結構判識的方法。應用結果表明，利用該方法劃分的煤體結構與煤芯劃分的結果基本一致，驗證了本文利用煤體結構指數(shù)N和RLLD/RMSFL劃分煤體結構是可行的。 進一步通過對研究區(qū)110口煤層氣井的測井資料的分析，揭示5號和11號煤層煤體結構分布規(guī)律及其影響因素。研究表明，5號煤層煤體結構破壞嚴重，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號煤層煤體結構相對較好，大部分地區(qū)都有Ⅰ類煤分布。研究區(qū)的煤體結構分布主要受斷裂構造控制，薛峰北逆斷裂帶煤體結構破壞嚴重，東澤村正斷裂帶煤體結構破壞相對較弱，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)煤體結構也有一定程度的破壞；其次，受頂?shù)装鍘r石力學性質差異的影響，5號煤層煤體結構的破壞程度比11號煤層煤體結構嚴重。
[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.

【學位授予單位】：太原理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.11;P631.81

【參考文獻】

相關期刊論文 前10條

1 范宜仁,鄧少貴,劉兵開;淡水驅替過程中的巖石電阻率實驗研究[J];測井技術;1998年03期

2 嚴家平,王定武;利用煤田鉆孔測井信息判識祁東煤礦構造煤的理論與實踐[J];礦業(yè)安全與環(huán)保;2003年06期

3 王恩營;邵強;杜云寬;韓松林;;逆斷層兩盤構造煤成因機理與分布[J];礦業(yè)安全與環(huán)保;2010年01期

4 湯友誼,田高嶺,孫四清,張國成;對煤體結構形態(tài)及成因分類的改進和完善[J];焦作工學院學報(自然科學版);2004年03期

5 王恩營;殷秋朝;李豐良;;構造煤的研究現(xiàn)狀與發(fā)展趨勢[J];河南理工大學學報(自然科學版);2008年03期

6 喬偉;倪小明;張小東;;煤體結構組合與井徑變化關系研究[J];河南理工大學學報(自然科學版);2010年02期

7 雷崇利;用鉆孔煤心鑒別煤層煤體結構及其應用[J];煤田地質與勘探;2001年02期

8 孫四清;陳致勝;韓保山;張建彬;趙繼展;;測井曲線判識構造軟煤技術預測煤與瓦斯突出[J];煤田地質與勘探;2006年04期

9 徐學鋒;;逆斷層區(qū)構造煤形成機制及分布規(guī)律的數(shù)值模擬[J];煤田地質與勘探;2012年02期

10 孫文卿;傅雪海;曾慶華;;常村礦3~#煤構造煤分布及其成因探討[J];煤礦安全;2011年02期

本文編號：1457466