本文選題：生熱率　切入點：自然伽馬測井　出處：《煤田地質(zhì)與勘探》2017年03期

【摘要】：為研究淮南煤田煤系巖漿巖生熱率特點及其對地溫場的影響,以淮南朱集井田為研究對象,基于36個鉆孔內(nèi)6 208個煤系巖石自然伽馬(GR)測井值的基礎上,利用自然伽馬與生熱率GR-A的關系式,計算不同巖石生熱率及其標準差,結(jié)果得出,煤系沉積巖的GR值由大到小依次為泥巖83.83 API、砂巖62.23 API和煤34.32 API,巖漿巖的GR值為103.89 API,遠大于沉積巖;巖漿巖的生熱率也最大,平均1.63μW/m3,約為煤的3倍,但因受巖漿巖侵入分期性的影響,其標準差較大�？偟膩碚f,朱集井田內(nèi)煤系巖石放射性生熱對區(qū)內(nèi)大地熱流的貢獻量不大,但巖漿巖的高生熱率對巖層生熱結(jié)構(gòu)的改變較大。
[Abstract]:In order to study the characteristics of coal-measure magmatic heat generation rate and its influence on geothermal field in Huainan coalfield, taking Zhuji mine field in Huainan as an object of study, based on the natural gamma gr logging value of 6208 coal measure rocks in 36 boreholes, the authors have studied the characteristics of heat generation rate of coal measure magmatic rock in Huainan coalfield and its influence on the geothermal field. By using the relationship between natural gamma and heat generating rate GR-A, the heat generation rate and its standard deviation of different rocks are calculated, and the results are obtained. The gr value of coal-measure sedimentary rock is 83.83 API, the sandstone is 62.23 API and coal 34.32 API, the gr of magmatic rock is 103.89 API, which is much larger than that of sedimentary rock, and the heat generation rate of magmatic rock is also the highest, with an average of 1.63 渭 W / m ~ (3), which is about 3 times of that of coal. However, due to the influence of magmatic intrusion and staging, the standard deviation is larger. In general, the contribution of radioactive heat generation of coal measure rock in Zhuji mine field to the geothermal flow in the area is not large, but the high heat generation rate of magmatic rock has a great change on the formation heat generation structure.
【作者單位】： 中國科學院邊緣海與大洋地質(zhì)重點實驗室南海海洋研究所;中國科學院大學;安徽理工大學地球與環(huán)境學院;西安科技大學地質(zhì)與環(huán)境學院;
【基金】：國家自然科學基金面上項目(41272278)~~
【分類號】：P314;P618.11;P631.817

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本文編號：1653650