摘要
由多元醇、环氧氯丙烷合成了氯代聚醚,再用二甲胺进行季铵盐化,得到了有效含量约60%的聚醚季铵盐反相破乳剂GBED-08,简介了合成方法,考察了用于辽河油田SAGD法开采超稠油时产出的高含油污水脱油的效果。所用污水样含油量55163 mg/L,在90℃沉降90 m in后含油量44903 mg/L,加入GBED-08的污水样在90℃沉降90m in后的含油量,加量200 mg/L时为1005 mg/L,加量350 mg/L时最低,为110 mg/L,加量继续增加时缓慢增大,对此现象作了解释。在加量为300 mg/L,70℃下沉降时间≥60 m in时含油量不再变化,沉降90 m in的含油量随温度降低而增大,90℃时为276 mg/L,50℃约为700 mg/L。按300 mg/L的加量分别加入5种水溶性商品破乳剂、3种油溶性商品破乳剂及混凝剂PAC,在90℃沉降90 m in后含油量均大于25000 mg/L。
A quarternary ammonium salt of polyether,containing about 60% active substances,was prepared as an inverse demulsifier GBED-08 by reacting a polyhydric alcohol with epichlorohydrin to form a chlorinated polyether and by ammonization of the later by dimethylamine;the synthesis was depicted concisely.The deoiling capability of GBED-08 was investigated for a high oil content produced water from Liaohe＇s utra-heavy oil reservoirs exploitated by SAGD.The produced water sample（PWS） was characterized by oil content 55163 mg/L,which was lowered down to 44903 mg/L after 90 minute sedimentation at 90℃.The oil content of GBED-08 treated PWS after 90 minutes sedimentation at 90℃ dropped to 1005 mg/L at GBED-08 dosage 200 mg/L and to a minimum of 110 mg/L at GBED-08 dosage 350 mg/L and slowly rose at further increased dosages,which was explained in physicochemical terms.At GBED-08 dosage of 300 mg/L the oil content kept unchanged after sedimentation at 70℃ in 60 minutes and longer and rose with decreasing temperature of 90 minutes sedimentation,being of 276 mg/L at 90℃ and about 700 mg/L at 50℃.The oil content was higher than 25000 mg/L for all PWSs treated by one of commercial chemicals presented below and sedimentated at 90℃ in 90 minutes：5 water soluble and 3 oil soluble crude oil demulsifiers and coagulant PAC.
出处
《油田化学》
CAS
CSCD
北大核心
2009年第3期290-292,289,共4页
Oilfield Chemistry
关键词
聚醚季铵盐
除油剂
反相破乳剂
油由污水
采出液
高含油量
超稠油油藏
蒸汽辅助重力泄油法(SAGD)
quarternary ammonium salt of polyether
deoiling agent
inverse demulsifier
oilfield produced water
produced fluid
high oil content
utra-heavy oil reservoir
steam assisted gravity drainage（SAGD）
