潘集礦區(qū)深部現(xiàn)今地溫場(chǎng)特征及其構(gòu)造控制
發(fā)布時(shí)間:2018-06-02 08:40
本文選題:現(xiàn)今地溫場(chǎng) + 地溫梯度; 參考:《高校地質(zhì)學(xué)報(bào)》2017年01期
【摘要】:潘集礦區(qū)深部勘查區(qū)是淮南煤田未來主要的接替資源地,但煤炭深部開采必然會(huì)面臨嚴(yán)峻的地?zé)岬刭|(zhì)問題,而前人對(duì)該區(qū)的研究多局限于淺層地溫資料的預(yù)測(cè)評(píng)價(jià),制約了對(duì)深部地?zé)釛l件的認(rèn)識(shí)。為此,此次依據(jù)潘集礦區(qū)深部最新的地面鉆孔井溫測(cè)井?dāng)?shù)據(jù),結(jié)合淺層地溫和井下巷道巖溫測(cè)試等相關(guān)地質(zhì)資料,研究該區(qū)現(xiàn)今地溫場(chǎng)特征,并從多方面分析地質(zhì)構(gòu)造對(duì)該區(qū)地溫場(chǎng)的控制作用。研究成果表明,在垂向上地溫與深度呈較好的正相關(guān)關(guān)系,地溫梯度整體上隨深度的增加而遞減;平面上地溫梯度介于20.9~36.2℃/km之間,平均值為26.7℃/km,總體上呈由潘集背斜核部向兩翼和外圍逐漸降低的趨勢(shì)。該區(qū)現(xiàn)今地溫場(chǎng)主要受潘集背斜的構(gòu)造控制,導(dǎo)水?dāng)鄬右彩窃搮^(qū)局部地溫異常的主要原因之一,巖漿巖的放射性生熱作用也在一定程度上影響煤系巖層的生熱結(jié)構(gòu)。
[Abstract]:The deep exploration area in Panji mining area is the main replacement resource for Huainan coalfield in the future. However, deep coal mining is bound to face severe geothermal geological problems, and most of the previous studies in this area are limited to the prediction and evaluation of shallow geothermal data. It restricts the understanding of deep geothermal conditions. Therefore, based on the latest temperature logging data of deep surface borehole in Panji mining area, combined with relevant geological data, such as shallow ground temperature test and underground roadway temperature test, the characteristics of present geothermal field in this area are studied. The controlling effect of geological structure on the geothermal field in this area is analyzed from many aspects. The results show that there is a good positive correlation between the vertical temperature and the depth, and the geothermal gradient decreases with the increase of the depth, and the geothermal gradient on the plane is between 20.9 鈩,
本文編號(hào):1968134
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