地热井高导热胶结材料制备及性能研究分析

打开文本图片集

中图分类号：TU526；TQ177 文献标志码：A 文章编号：1001-5922（2026）1-0127-04

Abstract：Theefectsof tackifierdosageonthethermalconductivity，hardness，shearstrength，tensile properties，and high-temperature mass retentionrate of high thermalconductivity cementing materials for geothermal wels were investigated.The resultsshowed that with thegradual increaseof tackifierdosage，thethermal conductivityof the high thermal conductivitycementing material for geothermal wels first increasedand then decreased，reaching the maximumvalue when the tackifier dosage was 0.4% ;thetensile strength of the material first increased and then decreased，with the maximum tensile strength achieved at a tackifier dosage of 0.6% ;the shear strength of the material firstincreased and then tended to be stable，peaking at a tackifier dosage of 0.4% ;the Shore A hardness of the material first increased and then decreased，hitting the maximum value when the tackifier dosage was 0.6% . At 500 C （20 and above，atthe same temperature，the mass retentionrates of the high thrmal conductivitycementing materials for geothermal wells with tackifier dosages of 0.4% and 1.0% were both lower than that of the sample with 0% tackifier dosage，and the higher the tackifier dosage，the lower the mass retention rate of the material.

keywords：high thermal conductivityfor geothermal wels;cementing material;tackifierdosage;thermal conductivity;mass retention rate;mechanical properties

地热井（通常按照温度划分为高温、中温和低温三类地热井）是指水温大于 30c 的温泉水或者井深 3500m 左右的地热能来进行发电的方法和装置。（剩余5901字）