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以超高矿化度玛湖地表盐水为溶剂，优选了增黏剂、降滤失剂、缓蚀剂等助剂，构建了一套适合玛湖1井区的超高矿化度玛湖盐水基修井液体系。该修井液配方为：240 mL玛湖盐水+60 mL清水+4%膨润土+0.5%PAC-HV+0.3%PAC-LV+1%重质超细碳酸钙(3 000目)+0.6%ODD+0.2%NTA+重晶石。室内实验结果表明：该体系流变性能良好，FLAPI滤失量为4.4 mL，防膨率达95.42%，腐蚀速率小于0.020 00 mm/a，且经100℃高温老化16 h后其流变性能、降滤失性能、防膨性能及缓蚀性能基本不变。
Abstract：A set of ultra-high salinity workover fluid system suitable for Mahu 1 well area was constructed by using ultrahigh salinity Mahu surface saline as the solvent, and selecting additives such as viscosity enhancer, filtrate reducer, and corrosion inhibitor. The formula for the workover fluid is: 240 mL Mahu brine+60 mL freshwater + 4% bentonite + 0.5% PAC-HV + 0.3% PAC-LV + 1% heavy ultra-fine calcium carbonate(3 000 mesh) + 0.6% ODD + 0.2% NTA + barite. Laboratory evaluations demonstrate that the rheological properties of the system are good, with a FLAPI filtration loss of 4.4 mL, an anti swelling rate of 95.42%, and a corrosion rate of < 0.020 00 mm/a. After 16 h of high-temperature aging at 100 ℃, its rheological properties, filtration reduction properties, anti swelling properties, and corrosion inhibition properties remain basically unchanged.
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基本信息:
DOI：10.20075/j.cnki.issn.1003-9384.2026.01.015
中图分类号:TE358
引用信息:
[1]贾文峰,宋佳俊,李进,等.超高矿化度卤水基修井液研究与性能评价[J].精细石油化工,2026,43(01):60-63.DOI:10.20075/j.cnki.issn.1003-9384.2026.01.015.
基金信息:
中石油战略合作科技专项（ZX20190220）
2026-01-18
2026-01-18