Abstract: With the extension of time for development of all blocks in Chunliang Oilfield, the production of oil wells declines. Based on the principle of "reducing cost and enhancing efficiency", low dose acidizing process was used for low producing wells. Through optimizing process to improve pertinence of measures, improving acidizing fluid system by lab experiment to adapt to different reservoir conditions, and applying acidizing software to optimize dosage of acidizing fluid, the reserves produced degree of low-permeability and low-energy wells was enhanced effectively, and good results were obtained. In 2011, low dose acidizing process was used in 39 wells, and the average daily single well oil output was increased by 2 to 3 tons, achieving remarkable economic profits.

Key words: reducing cost and enhancing efficiency, stripper well, low dose acidizing

摘要： 随着胜利纯梁油田各区块开发时间的延长,油井产量降低。本着"降本增效"的原则,对低产油井实施小剂量酸化工艺,通过优化工艺提高措施针对性,室内实验改进酸液体系适应不同储层条件,应用酸化软件优化酸液用量,有效提高了低渗透低能量井的储量动用程度,并取得了较好的效果。2011年共实施小剂量酸化工艺39井次,酸化后平均单井日增油2~3t,经济效益明显。

关键词: 降本增效, 低产井, 小剂量酸化