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Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2026 / Cilt: 26 Sayı: 1

Enhancing the Sulphate Resistance of G-Type Well-Completion Cement Modified with Nano-Sized Particles

G Tipi Kuyu Tamamlama Çimentosunun Sülfat Direncinin Nano Boyutlu Taneciklerle Geliştirilmesi

Serhat Demirhan(Batman Üniversitesi)0000-0001-5448-9495
Şakir Çağlayan0009-0004-2278-2434
Pages
149–156
Publication Date
2026-01-19
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The findings revealed that mixtures containing NC demonstrated superior compressive strength and UPV values comparing to those containing NCC, which could be attributed to the increased reactivity of NC and the subsequent formation of additional hydration products, such as carboaluminates.

📌 3 Key Takeaways

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Objective & Hypothesis:This experimental research aims to elucidate the enhancement of sulphate resistance in G-Type well cement through the incorporation of nano-sized materials, specifically nano calcite (NC) and nano CaCO₃ (NCC).
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Key Findings & Data:The experimental investigation focused on the implications of these nano-sized minerals on the key performance parameters, including compressive strength and ultrasonic pulse velocity (UPV), when subjected to aggressive sulphate environments.
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Conclusion & Impact:The findings revealed that mixtures containing NC demonstrated superior compressive strength and UPV values comparing to those containing NCC, which could be attributed to the increased reactivity of NC and the subsequent formation of additional hydration products, such as carboaluminates.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:G Tipi Çimento · Nano Kalsit · Sülfat Direnci

Abstract

This experimental research aims to elucidate the enhancement of sulphate resistance in G-Type well cement through the incorporation of nano-sized materials, specifically nano calcite (NC) and nano CaCO₃ (NCC). The experimental investigation focused on the implications of these nano-sized minerals on the key performance parameters, including compressive strength and ultrasonic pulse velocity (UPV), when subjected to aggressive sulphate environments. Cement pastes were produced by substituting 5% of the G-type cement content with nanoparticles, and were subjected to curing with/without sulphated environmental conditions depending on mediums. The findings revealed that mixtures containing NC demonstrated superior compressive strength and UPV values comparing to those containing NCC, which could be attributed to the increased reactivity of NC and the subsequent formation of additional hydration products, such as carboaluminates. On the other hand, the high surface area-to-volume ratio of NCC resulted in increment of particle agglomeration, which adversely affected the microstructural development. Scanning Electron Microscopy (SEM) analysis illustrated considerable ettringite formation in the samples exposed to surrounding sulphate solution, confirming the enhanced efficacy of NC in mitigating sulphate-induced deterioration. These conclusions underscore the potential of nano calcite as a potent nano-sized mineral admixture for enhancing the durability and mechanical characteristics of well cements utilized in oil-well applications.

Özet

Bu deneysel araştırma, nano kalsit (NC) ve nano CaCO₃ (NCC) nano boyutlu malzemelerinin kullanımıyla G Tipi kuyu çimentosunun sülfat direncinin artırılmasını açıklamayı amaçlamaktadır. Deneysel inceleme, bu nano boyutlu minerallerin, agresif sülfat ortamlarına maruz kaldıklarında basınç dayanımı ve ultrases dalgası hızı (UPV) gibi temel performans parametreleri üzerindeki etkilerine odaklanmıştır. Çimento hamurları, G Tipi çimento içeriğinin %5’inin nano parçacıklarla ikame edilmesiyle üretilmiş ve karışıma göre sülfat içeren/sülfat içermeyen çevresel koşullarda kürlemeye tabi tutulmuştur. Bulgular, NC içeren karışımların, NCC içerenlere kıyasla daha yüksek basınç dayanımı ve UPV değerleri sergilediğini ortaya koymuştur. Bu durum, NC'nin daha yüksek reaktivitesine ve karboalüminatlar gibi ek hidratasyon ürünlerinin oluşumuna bağlanmıştır. Öte yandan, NCC'nin yüksek yüzey alanı/hacim oranı, parçacıkların topaklanma potansiyelini artırarak mikro yapısal gelişimi olumsuz yönde etkilemiştir. Taramalı Elektron Mikroskobu (SEM) analizi, çevredeki sülfat çözeltisine maruz kalan numunelerde önemli miktarda etrenjit oluşumunu göstermiş ve NC'nin sülfat kaynaklı bozulmayı azaltmada artırılmış etkinliğini doğrulamıştır. Bu sonuçlar, nano kalsitin, petrol kuyusu uygulamalarında kullanılan kuyu çimentolarının dayanıklılığını ve mekanik özelliklerini artırmak için güçlü bir nano boyutlu mineral katkı maddesi olarak potansiyelini vurgulamaktadır.

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Cite This Article

Demirhan, S., Çağlayan, Ş. (2026). Enhancing the Sulphate Resistance of G-Type Well-Completion Cement Modified with Nano-Sized Particles. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 26 Sayı: 1, 149–156. https://doi.org/10.35414/akufemubid.1623313

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