接力式酸降压增注工艺技术的应用

The Application of Successive Acidizing Drawdown and Augmented Injection Technology

关键词:  接力式酸,降压增注,自生酸,工艺,解堵

Key words:  successive acid, drawdown augmented injection,self-make acid, technology, free block,

摘要:

酸化是油气井增产和水井增注的主导措施之一。介绍了采用三种自生酸原液在地层条件与催化抑制剂作用下生成氢氟酸、盐酸、有机酸 ,进而发生酸岩反应的一种接力式酸降压增注工艺。该技术已在胜利油田、中原油田、河南油田等成功解堵 30余井次。

Abstract:

Acidizing treatments is one of the main measure to stimulate oil and gas production and augment water injection. This paper presents a successive acidizing drawdown and augmented injection technology. Three kinds of self-make acid fluids are mixed and in