Kızıldere Formasyonu (İskenderun-Arsuz/HATAY) Kumtaşlarında Micro-CT yöntemiyle Mikroporozite Belirlenmesi

Year 2021, Volume: 8 Issue: 2, 718 - 727, 31.05.2021

Melda Avcu Meryem Yeşilot Kaplan

https://doi.org/10.31202/ecjse.867485

Abstract

Bu çalışmanın amacı Arsuz-İskenderun (Hatay) yöresinde gözlemlenen kumtaşlarının mikroporozitesini Micro-CT ve görüntü işleme yöntemleriyle belirlemek ve makro porozite değerleriyle karşılaştırmaktır. Kızıldere formasyonu kumtaşları-kiltaşları ile ardışımlıdır ve evaporitik birimlerden oluşan Haymaseki üyesini üzerlemektedir. Kumtaşlarında bağlayıcı malzeme kalsit çimentodur ve temel kayaya ait ultrabazik-bazik kayaç kırıntıları hakimdir ve litarenit olarak isimlendirilmişlerdir. Micro-CT analizlerine göre kapalı porozite % 4.22, açık porozite % 35.46 ve toplam porozite ise % 38.18’dir. Micro-CT yöntemiyle elde edilen iki boyutlu 188 adet görüntünün işlenmesi ile toplam porozite belirlenmiştir. Açık kod kaynaklı Fiji/Imagej programıyla yapılan analizlerde kumtaşlarında porozite % 20-45 arasında değişmektedir. Kuyu logları porozitesiyle bu değerler karşılaştırılmıştır ve Micro-CT analiz sonuçlarıyla benzer olduğu belirlenmiştir. Görüntü işleme yöntemleri ve Micro-CT yöntemiyle kayaçların porozite değerlerinin hesaplanması diğer yöntemlere göre daha pratik, tahribatsız ve ekonomiktir. Kızıldere formasyonuna ait kumtaşlarının porozite değerleri formasyonun hazne kaya olabileceğini göstermektedir.

Keywords

Micro-CT, Mikroporozite, Kızıldere Formasyonu, Görüntü İşleme, ImageJ

Determination of Microporosity in Kizildere Formation Sandstones by Micro-CT method (Iskenderun-Arsuz / HATAY)

Abstract

The aim of study is to determine the microporosity of sandstones in Arsuz-Iskenderun (Hatay) region by Micro-CT and image processing methods and to compare the macro porosity. The Kizildere formation is sequenced with sandstones-claystones and overlies the Haymaseki member consisting of evaporitic units. The cement in sandstones is calcite and ultrabasic-basic rock fragments of the basement rock are dominant and are named as litharenite, closed porosity is 4.22%, open porosity is 35.46% and total porosity is 38.18% according to Micro-CT analysis. Porosity in sandstones varies between 20-45% in the analysis with the open source software Fiji / Imagej. These values were compared with the porosity of the well logs and determined to be similar to the Micro-CT analysis results. Calculation of porosity values of rocks with image processing methods and Micro-CT method is more practical, non-destructive and economical than other methods. The porosity values of the sandstones of the Kizildere formation indicate that the formation may be a reservoir rock.

Keywords

Micro-CT, Microporosity, Kızıldere Formation, Image Processing, ImageJ

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