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综述了硫酸钡垢对油田生产的严重危害和长庆油田硫酸钡垢治理技术研究现状.硫酸钡垢在地层深部的沉积可以使地层渗透性遭受几乎不可逆转的伤害,在油田集输系统的沉积可以造成地面设备的大量报废.单独使用螯合剂清除油田硫酸钡垢的效果欠佳,而使用化学添加剂可明显改善其溶垢效果.在研究化学除垢技术的同时,研制硫酸钡防垢剂的工作在加紧进行.
This paper reviews the serious harm of barium sulfate scale to oilfield production and the research status of barium sulfate scale treatment technology in Changqing Oilfield.The deposition of barium sulfate scale in the deep strata can cause almost irreversible damage to the permeability of the formation, Can cause a lot of scrapping of the ground equipment.Using chelating agent alone to remove the barium sulfate scale ineffective, and the use of chemical additives can significantly improve the scale effect.In the study of chemical descaling technology at the same time, the development of barium sulfate scale inhibitor Work is stepping up.