新型高效泡排剂LYB-1的研制及其性能评价

Development and performance evaluation of a new efficient foam discharging agent LYB-1

目前,我国多数气田已进入开采中后期,多数气井已出现井底积液的情况,普通泡沫排水剂难以满足现阶段天然气开采的需求。为此,通过正交设计实验法优化得到泡排剂的最佳配比,研制出了一种新型高效气井泡排剂——LYB-1。室内试验主要采用罗氏—迈尔斯评价方法,借助现场取得的地层水和凝析油对该泡排剂的起泡能力、携液能力、耐温能力、抗油能力、抗甲醇能力、缓蚀能力以及与地层水的配伍性等进行了系统的研究与分析。试验结果表明,该泡排剂与地层水具有良好的配伍性能和缓蚀性能,不仅具有优良的耐温能力、抗凝析油能力,而且具有较强的抗甲醇能力,是一种环保型的泡排剂。

Liquid loading appears in most gas wells as many mature gas fields in China have entered the medium or post stage.As a result,regular foam drainage agent can not satisfy the requirement for natural gas exploitation.For this reason,the prime ratio is optimized by the orthogonal experimental design and a novel high-efficiency foam drainage agent LYB-1 is developed.The Ross-Miles evaluation method is used in laboratory tests.With the aid of formation water and condensate oil from the worksite,a systematic study and analysis is carried out on the capacities of foamability,unloading,temperature tolerance,oil resistance,methanol resistance,corrosion inhibition of the foam drainage agent and its compatibility with formation water.The test results show that this novel foam drainage agent has a good compatibility with formation water and a good corrosion inhibition.In addition,it is also proved to be environmentally friendly with a good temperature tolerance and a strong resistance of condensate oil & methanol.