哈拉哈塘油田高含蜡原油降凝剂合成及性能研究
发布时间：2019-07-24 10:44
【摘要】：哈拉哈塘油田南部区块原油含蜡量高,生产过程中井筒频繁堵塞,严重影响正常生产。分析了井筒堵塞物成分,主要以微晶蜡堵塞为主;合成了15种共聚物,评价了合成物的降凝和降黏效果,优选出效果较好的SDA-1降凝剂,使原油凝点降低28℃,0℃时原油降黏率为80%;偏光显微结果表明,加剂后原油蜡晶明显变小,SDA-1抑制了蜡晶生长;高温高压井筒模拟研究结果表明,加入1 000 mg/L SDA-1降凝剂后,井筒举升压差由1.37 kPa降低至0.67 kPa,有效抑制了蜡晶析出,SDA-1具有良好应用前景。
[Abstract]:The wax content of crude oil in the southern block of Harahatang Oilfield is high, and the wellbore is blocked frequently in the production process, which seriously affects the normal production. The composition of wellbore blockage was analyzed, mainly microcrystal wax blockage, 15 kinds of polymers were synthesized, the anticoagulant and viscosity reducing effect of the compound were evaluated, and the SDA-1 pour point depressant with good effect was selected, which reduced the freezing point of crude oil by 28 鈩，
本文编号：2518585
[Abstract]:The wax content of crude oil in the southern block of Harahatang Oilfield is high, and the wellbore is blocked frequently in the production process, which seriously affects the normal production. The composition of wellbore blockage was analyzed, mainly microcrystal wax blockage, 15 kinds of polymers were synthesized, the anticoagulant and viscosity reducing effect of the compound were evaluated, and the SDA-1 pour point depressant with good effect was selected, which reduced the freezing point of crude oil by 28 鈩，
本文编号：2518585
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