摘要
淀粉与丙烯酰胺在硫酸铈铵/过硫酸钾氧化还原引发剂作用下反应得到淀粉丙烯酰胺接枝物,再添加一种抗氧剂复配制备了水基钻井液降滤失剂HRS,研究了HRS在盐水浆中不同温度下的滤失性能、抗钙、抗镁能力及产品的生物毒性和生物降解性。研究结果表明:产品在150℃使用环境中抗盐至饱和,抗Ca^(2+)至2300 mg/L,抗Mg^(2+)900 mg/L。此外,HRS低毒易降解。
The AM/Starch graft copolymer was synthesis using the ceric ammonium sulfate/potassium persulfate redox system, and then the antioxidant was added to prepare the HRS as the water-based drilling fluid filtrate reducer. The properties of HRS were evaluated in laboratory. The experimental results showed that HRS had excellent capacities of depressing the filter loss, thermal stability, saturated-salt resistance. At the high temperature of 150~C, HRS could be used in the operating environment that the maximum content of Ca~~ and Mg~~ was 2300 mg/L and 900 mg/L, respectively. In addition, HRS had microbial toxicity and was easy to be biodegradated.
出处
《油田化学》
CAS
CSCD
北大核心
2013年第2期161-163,172,共4页
Oilfield Chemistry
关键词
淀粉
丙烯酰胺
抗氧剂
降滤失剂
Starch
acrylamide
antioxidaat
filtrate reducer
