摘要
针对长庆油田姬塬长2油藏具有低渗及粘土矿物中绿泥石含量较高等特点,在该油藏酸化液体系已确定的基础上,筛选了适合该油藏的酸化液添加剂,并评价了各添加剂在酸化过程中的作用。选择氯化铵为防膨剂,醋酸和柠檬为铁离子稳定剂,XP为缓蚀剂,CF-5B为助排剂, BE-2为破乳剂,试验结果表明,酸化液添加剂、酸化液体系及地层水具有良好的配伍性。本研究为同类低渗透油藏酸化液添加剂的选择提供了参考。
The Chang 2 reservoir in Jiyuan of Changqing Oil and Gas Field was low - permeability and high chlorite content. On the basis of the acidifying fluid system determinated for the reservoir, additives for the system were selected as follows：acetic acid and citric acid as ferric ion stabilizing agent, ammonium chloride as anti - clay - swelling agent, XP as corrosion inhibitor, CF- 5B as cleanup additive, and BE- 2 as demulsifier.The effects of the additives on acidification were evaluated. The additives had good compatibility with the acidifying fluid system and formation water.
出处
《精细石油化工进展》
CAS
2006年第2期23-25,共3页
Advances in Fine Petrochemicals
关键词
酸化液
添加剂
筛选
低渗油藏
low - permeable reservoir, acidifying fluid, additives, selection
