Perlit ve Fırın Cürufu Katkılı G Sınıfı Çimentonun Petrol-Jeotermal Kuyulardaki Isıl Yalıtım Özelliklerine Etkisinin Deneysel ve İstatistiksel Analizi

Abstract

Enerji talebinin giderek arttığı günümüzde petrol, doğal gaz ve jeotermal kaynakların sondajı ve üretimi ekonomik açıdan büyük önem taşımaktadır. Bu süreçlerde karşılaşılan en büyük zorluklardan biri yüksek işletme maliyetleridir. Bu nedenle maliyetleri düşürmek enerji üretim sektöründe ve yüksek enerji tüketimi olan sektörlerde faaliyet gösteren şirketler için stratejik bir hedef haline gelmiştir. Petrol sahaları akışkan özelliklerine göre Newton ve nano-Newton olarak adlandırılmaktadır. Üretimleri ve oluşturdukları maliyetler birbirinden farklıdır. Özellikle nano-Newton (ağır) petrollerde, petrol rezervinin kimyasal özelliklerine göre farklı oranlarda kimyasalların bulunması ve bunların yüzeye doğru hareketi sırasında ısı kayıplarının neden olduğu fiziksel değişimler üretim hatlarında tıkanma sorunlarına neden olmaktadır. Bu tür sorunları önlemek için birçok maliyetli yöntem kullanılmasına rağmen çalışmada kuyu çimentolamasında kullanılan çimentoların ısı yalıtım özelliklerini artırarak maliyetlerin düşürülmesi ve bu sorunların önlenmesi amaçlanmaktadır. Bu çalışma kapsamında, mevcut petrol-doğalgaz ve jeotermal sahalarında en yaygın kullanılan G sınıfı çimentoda, hacimce %5'ten %30'a kadar artan oranlarda kimyasal katkı maddeleri ve yüksek fırın cürufu ve genleştirilmiş perlit gibi mineral katkı maddelerinin farklı ikame oranlarında kullanılmasının, G sınıfı çimento harcındaki yoğunluk değişimi, basınç ve eğilme dayanımı gibi temel mekanik özellikler, gözeneklilik gibi fiziksel özellikler ve ısıl iletkenlik gibi yalıtım özellikleri üzerindeki etkileri çoklu regresyon analizi ile incelenmiş ve ilişkiler denklem ve grafiklerle verilmiştir. Çalışmanın amacı, kuyularda kullanılan G sınıfı çimentoya standartlara uygun ilaveler yapılarak üretim kesintilerinin önlenmesi, sürenin mümkün olduğunca kısaltılması, iş kayıplarının önlenmesi ve maliyetlerin düşürülmesidir.

Keywords

• Petrol 1
• Jeotermal 2
• G Sınıfı Çimento 3
• Isı Yalıtım 4
• Kuyu Çimentolama 5.

Experimental and Statistical Analysis of the Effect of Perlite and Furnace Slag-Modified Class G Cement on Thermal Insulation Properties in Petroleum and Geothermal Wells

Abstract

In today's world where energy demand is increasing, drilling and production of oil, natural gas and geothermal resources are of great economic importance. One of the biggest challenges encountered in these processes is high operational costs. For this reason, reducing costs has become a strategic goal for companies operating in the energy production sector and sectors with high energy consumption. Oil fields are called Newtonian and nano-Newtonian according to their fluid properties. Their production and the costs they cause are different from each other. Especially in nano-Newton (heavy) oils, the presence of chemicals in different proportions depending on the chemical properties of the oil reserve and the physical changes caused by heat losses during their movement towards the surface cause blockage problems in production lines. Although many costly methods are used to prevent such problems, the study aims to reduce costs and prevent these problems by increasing the thermal insulation properties of the cements used in well cementing. Within the scope of this study, the effects of the use of chemical additives at different substitution rates and mineral additives such as blast furnace slag and expanded perlite at increasing rates from 5% to 30% by volume in the G class cement, which is the most widely used in the existing oil-natural gas and geothermal fields, on the density change in the G class cement mortar, basic mechanical properties such as compression and bending strength, physical properties such as porosity and insulation properties such as thermal conductivity were examined by multiple regression analysis and the relationships were given with equations and graphs. The aim of the study is to prevent production interruptions, reduce time as much as possible, prevent work losses and reduce costs by making additions to the G class cement used in wells in accordance with the standards.

Keywords

• Oil 1
• Geothermal 2
• G class cement 3
• Thermal insulation 4
• Well cementing 5

References

1. Abo-El-Enein SA., El-Hosiny FI., El-Gamal SMA., Amin MS., Ramadan M. Gamma radiation shielding, fire resistance and physicochemical characteristics of Portland cement pastes modified with synthesized Fe2O3 and ZnO nanoparticles. Construction and Building Materials 2018; 173: 687-706.
2. Anya A. Lightweight and ultra-lightweight cements for well cementing-a review. In SPE Western Regional Meeting, 2018 April 22, p. D031S003R003), SPE.
3. Demirel Ö., Demirhan S. Investigation of microstructural properties of high-volume fly ash blended cement mortars including micronized calcite. Journal of the Faculty of Engineering and Architecture of Gazi University 2021; 36(4): 2255-2269.
4. Demirhan S. Combined effects of nano-sized calcite and fly ash on hydration and microstructural properties of mortars. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi 2020; 20(6): 1051-1067.
5. Dousti A., Beyki H., Shekarchi M. Strength and durability performance of mortars incorporating calcined clay as pozzolan in comparison with silica fume. Journal of Civil Engineering and Materials Application 2022; 6(3): 159-174.
6. Du J., Bu Y., Cao X., Shen Z. Utilization of alkali-activated slag-based composite in deepwater oil well cementing. Construction and Building Materials 2018; 186: 114-122.
7. Guo J., Li M., Wang L., Yang B., Zhang L., Chen Z., Abraham A. Estimating cement compressive strength using three-dimensional microstructure images and deep belief network. Engineering Applications of Artificial Intelligence 2020; 88: 103-378.
8. Kalkan ŞO., Gündüz L., İsker AM. A comparative analysis on the effects of pumice, tuff and conventional aggregates on energy efficiency performance in new generation composite mortars. Arabian Journal of Geosciences 2021; 14(11): 929.

9. Kanavaris F., Soutsos M., Chen J. Effect of temperature on the early-age hydration and setting behaviour of mixes containing GGBS. Journal of Advanced Concrete Technology 2024; 22(1): 14-32.
10. Kjellsen KO., Detwiler RJ., Gjørv OE. Development of microstructures in plain cement pastes hydrated at different temperatures. Cement and Concrete Research 1991; 21(1): 179-189.
11. Krauß M., Hariri K. Determination of initial degree of hydration for improvement of early-age properties of concrete using ultrasonic wave propagation. Cement Concrete Composites 2006; 28(4): 299-306.
12. Larki OA., Apourvari SN., Schaffie M., Farazmand R. A new formulation for lightweight oil well cement slurry using a natural pozzolan. Advances in Geo-Energy Research 2019: 3(3): 242-249.
13. Ledesma RB., Lopes NF., Bacca KG., de Moraes MK., dos Santos Batista G., Pires MR., da Costa EM. Zeolite and fly ash in the composition of oil well cement: Evaluation of degradation by CO2 under geological storage condition. Journal of Petroleum Science and Engineering 2020; 185: 106656.
14. Li Z., Vandenbossche JM., Iannacchione A., Vuotto A. Characterization of oil well cement performance during early hydration under simulated borehole conditions. SPE Journal 2021; 26(06): 3488-3504.
15. Li G., Zhao X. Properties of concrete incorporating fly ash and ground granulated blast-furnace slag. Cement and Concrete Composites 2003; 25(3): 293-299.
16. Liu Y., Deng H., Jiang Z., Tian G., Wang P., Yu S. Research on influence laws of aggregate sizes on pore structures and mechanical characteristics of cement mortar. Construction and Building Materials 2024; 442: 137606.
17. Lécolier E., Rivereau A., Le Saoût G., Audibert-Hayet A. Durability of hardened portland cement paste used for oilwell cementing. Oil & Gas Science and Technology-Revue de l'IFP 2007; 62(3): 335-345.
18. Ma S., Kawashima S. A rheological approach to study the early-age hydration of oil well cement: Effect of temperature, pressure and nanoclay. Construction and Building Materials 2019; 215: 119-127.
19. Mindess S., Young JF., Darwin D. Concrete 2nd ed. NY: Prentice Hall Upper Saddle River, NJ 07458, 2003.
20. Nelson EB, Guillot D. Well cementing 2nd ed. NY: Schlumberger, Sugar Land, TX., 2006.
21. Pyatina T., Sugama T., Moghadam A., Naumann M., Skorpa R., Feneuil B., Godøy R. Assessment of cementitious composites for high-temperature geothermal wells. Materials 2024; 17(6): 1320.
22. Qian X., Li Z. The relationships between stress and strain for high-performance concrete with metakaolin. Cement and Concrete Research 2001; 31(11): 1607-1611.
23. Scherer GW., Funkhouser GP., Peethamparan S. Effect of pressure on early hydration of class H and white cement. Cement and Concrete Research 2010; 40(6): 845-850.
24. Shi C., Day RL. A calorimetric study of early hydration of alkali-slag cements. Cement and Concrete Research 1995; 25(6): 1333-1346.
25. Sun LJ., Pang XY., Ghabezloo S., Yan HB. Modeling the hydration, viscosity and ultrasonic property evolution of class G cement up to 90 °C and 200 MPa by a scale factor method. Petroleum Science 2023; 20(4): 2372-2385.
26. Tie TS., Mo KH., Alengaram UJ., Kaliyavaradhan SK., Ling TC. Study on the use of lightweight expanded perlite and vermiculite aggregates in blended cement mortars. European Journal of Environmental and Civil Engineering 2022; 26(8): 3612-3631.
27. Topçu İB., Işıkdağ B. Effect of expanded perlite aggregate on the properties of lightweight concrete. Journal of Materials Processing Technology 2008; 204(1-3): 34-38.
28. Wang SD., Scrivener KL. Hydration products of alkali activated slag cement. Cement and Concrete Research 1995; 25(3): 561-571.
29. Wei T., Cheng X., Gu T., Huang S., Zhang C., Zhuang J., Zheng Y. The change and influence mechanism of the mechanical properties of tricalcium silicate hardening at high temperature. Construction and Building Materials 2021; 308: 125065.
30. Yazıcı N., Karagöl F. Examination of mechanical and durability properties of fly ash based and slag added geopolymer concretes. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2022; 12(3): 1592-1606.
31. Zhang H., Hu M., Li PP., Liu GQ., Chang QL., Cao J., Liu M., Xu WH., Xia XJ., Guo JT. Thickening progression mechanism of silica fume-oil well cement composite system at high temperatures. Petroleum Science 2024; 21(4): 2793-2805.
32. Zhiqiang W., Renjun X., Jin Y., Xiucheng N., Xiaowei C. High-temperature mechanical properties and microstructure of high belite cement. Frontiers in Materials 2022; 9: 831889.