石化技术
石化技術
석화기술
PETROCHEMICAL INDUSTRY TECHNOLOGY
2015年
7期
139-140
,共2页
低渗%油层堵塞%酸化%解堵
低滲%油層堵塞%痠化%解堵
저삼%유층도새%산화%해도
low-permeability%reservoir plugging%acidity%remove plugging
储层酸化是砂岩油藏油井解堵增产、注水井增注的一项重要措施。盘40区块属常规低渗透油藏，长期的注水开发造成油层堵塞。根据现场的实际情况，通过对现场提供地层水进行水质分析，判断地层水水质对油层堵塞的影响。并围绕盘40区块油层堵塞的实际情况，优选四种酸液及其配方对地层进行酸化解堵实验，最终评价出一种解堵效果较好的酸液配方，达到提高地层渗透率，解堵增产的目的。
儲層痠化是砂巖油藏油井解堵增產、註水井增註的一項重要措施。盤40區塊屬常規低滲透油藏，長期的註水開髮造成油層堵塞。根據現場的實際情況，通過對現場提供地層水進行水質分析，判斷地層水水質對油層堵塞的影響。併圍繞盤40區塊油層堵塞的實際情況，優選四種痠液及其配方對地層進行痠化解堵實驗，最終評價齣一種解堵效果較好的痠液配方，達到提高地層滲透率，解堵增產的目的。
저층산화시사암유장유정해도증산、주수정증주적일항중요조시。반40구괴속상규저삼투유장，장기적주수개발조성유층도새。근거현장적실제정황，통과대현장제공지층수진행수질분석，판단지층수수질대유층도새적영향。병위요반40구괴유층도새적실제정황，우선사충산액급기배방대지층진행산화해도실험，최종평개출일충해도효과교호적산액배방，체도제고지층삼투솔，해도증산적목적。
Acidification is an important measure to remove plugging and raise productivity in sandstone reservoir. Pan 40 region belonged to the conventional low-permeable reservoirs and the long-term injection development of this reservoir have resulted in plugged or damaged. According to the scene situation,we analyzes the quality of stratum water and determine that influence on reservoir plugging. The author also applied acidity experiments of four acid and different element and researched some relative better acid combination for this plugged so that they can reached the purpose of improving the stratum permeability and removing plugging.
