Physio-chemical interaction of Ethylene-Vinyl Acetate copolymer on bonding ability in the cementing material used for oil and gas well
作者机构：Universiti Teknologi PETRONASSeri IskandarPerak32610Malaysia PTPERTAMINA(Persero)Jakarta10110Indonesia
出 版 物：《Petroleum Research》 (石油研究（英文）)
年 卷 期：2022年第7卷第3期
页 面：341-349页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
主 题：Well cementing EVA-Modified cement Flexibility Infrared spectroscopy Pore size distribution
摘 要：Effective bond of cement sheath to casing or formation depends on higher tensile strength and lower young s modulus which are a measure of its ability to withstand deformation under load without *** work utilized Ethylene Vinyl Acetate(EVA)redispersible polymer powder as additive in the class G cement to characterize bonding *** strength was measured for samples cured at 90°C for 3 days,whereas compressive strength was measured for samples cured at 120°C for 1 day and 3 days under atmospheric *** results showed that,with the addition of beyond 10% by weight of cement(BWOC)of polymer,not only tensile strength was improved,but also reduced young s *** of EVA additive beyond 10% BWOC showed significant benefit of flexibility in the cement ***(Fourier Transform Infrared Spectroscopy)indicated that presence of high VA(Vinyl Acetate)has no effect on polymerization of Silicates,which shows it does not hider in the formation of C–S–H *** of chemical bond augmented with longer curing time and increased polymer content,as seen in O–H stretching vibration at 3434 cm^(−1) and from Carboxylate anion at 1571 cm^(−1) to confirm on *** Intrusion porosimeter(MIP)showed significant reduction in fraction of mesopore sizes within the cement matrix,with the polymer addition.
维普期刊数据库