本文選題：大陸科學(xué)鉆探計(jì)劃 + 松科井東孔��； 參考：《地質(zhì)科技情報(bào)》2017年04期

【摘要】：松遼盆地資源與環(huán)境深部鉆探工程計(jì)劃通過兩井四孔的連續(xù)取心,獲得國際上第一個(gè)連續(xù)的白堊紀(jì)陸相沉積記錄。作為該項(xiàng)工程的主體鉆孔,松科2井東孔采用非定向取心技術(shù)鉆取營城組至火石嶺組的連續(xù)巖心;為滿足更高精度科學(xué)研究的要求,需要獲取松科2井東孔巖心的準(zhǔn)確深度與方位信息�；陔姵上駵y(cè)井圖像與巖心掃描圖像上的4種典型特征,利用成像-巖心掃描圖像綜合處理軟件開展巖心空間歸位工作,完成了松科2井東孔三開中途完井井段的巖心空間歸位工作;對(duì)歸位結(jié)果進(jìn)行了質(zhì)量評(píng)級(jí)。結(jié)果表明,歸位質(zhì)量等級(jí)在AA和AB的巖心占半數(shù)以上;粗砂巖、礫巖及火成巖等層段巖心的深度歸位比較準(zhǔn)確;泥巖、泥質(zhì)粉砂巖等層段巖心方向定位效果較好。巖心校正深度誤差整體上隨鉆井深度的增加而增加,符合實(shí)際規(guī)律。巖心空間歸位結(jié)果為下一步的地質(zhì)分析及科學(xué)研究奠定了基礎(chǔ)。
[Abstract]:The deep resource and environment drilling project in Songliao Basin obtained the first continuous Cretaceous continental sedimentary record through the continuous coring of two wells and four holes. As the main borehole of this project, the east hole of Songke 2 adopts non-directional coring technique to drill the continuous core from Yingcheng formation to Huoshiling formation, in order to meet the requirement of higher precision scientific research, It is necessary to obtain accurate depth and azimuth information of the east core of Songke well 2. Based on the four typical features of electrical imaging logging image and core scanning image, the work of core spatial location is carried out by using the comprehensive processing software of image-core scanning image. The work of core space homing in the middle of the opening of the third hole in the east hole of Songke 2 well is completed, and the quality of the return result is rated. The results show that more than half of the cores with homing quality grade are AA and AB, the depth of core of the strata such as coarse sandstone, conglomerate and igneous rock is more accurate, and the direction orientation of mudstone and argillaceous siltstone is better. The error of core correction depth increases with the increase of drilling depth, which accords with the actual law. The results of core spatial homing lay a foundation for further geological analysis and scientific research.
【作者單位】： 中國地質(zhì)大學(xué)(北京)地球物理與信息技術(shù)學(xué)院;中國地質(zhì)大學(xué)(北京)地下信息探測(cè)技術(shù)與儀器教育部重點(diǎn)實(shí)驗(yàn)室;中國地質(zhì)調(diào)查局發(fā)展研究中心;
【基金】：中國地質(zhì)調(diào)查局地質(zhì)調(diào)查專項(xiàng)"松遼盆地資源與環(huán)境深部鉆探工程"(12120113017600)
【分類號(hào)】：P634

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本文編號(hào)：1995136