塔里木东河1油田高温超深注水井酸化技术研究

ACIDIZING TECHNOLOGY RESEARCH FOR HIGH TEMPERATURE AND ULTRA-DEEP WATER INJECTION WELL IN DONGHE- 1 OILFIELD

东河１油田位于新疆库车县南东河１号背斜构造，是国内目前发现埋藏最深的海相块状砂岩油藏，是塔里木油田的主要产油区之一。从分析东河１油田注水井地质特征、伤害因素及注水现状入手，分析酸化改造的必要性，阐述了酸液体系研究、工艺技术研究结果以及现场实施效果。形成了一套完整、科学的砂岩酸化配套技术。

Donghe- 1 oilfield is located in Donghe-1 anticline structure south to Kuche county, Xinjiang, is the deepest marine block sandstone reservoir discovered up to now in China, and is one of the main production areas in Tarim Field. Based on the analysis to the geologic features, damage factors and water injection status of water injection wells in Donghe-1 oilfield, this paper analyzes the necessity of acidizing, presents the research results of acidizing fluids system and operation technology, as well as the on--site application ef feet.