济北采油管理区应用新技术，破解长井段套漏难题

Core Insights - The article discusses the challenges faced by Shengli Oilfield's Jibei Oil Management Area as it enters the later stages of development, including issues like increased well leakage, high operational costs, and oil layer contamination [1] - A new dual sealing technology has been developed to address these challenges, significantly improving operational efficiency and development benefits while protecting oil reservoirs [2] Group 1: Challenges in Oilfield Development - Shengli Oilfield has been in exploration and development for nearly 30 years, leading to complications such as increased leakage and high operational costs [1] - Traditional sealing technologies have limitations, including long operational cycles, low success rates, and potential for increased oil layer contamination [1] Group 2: Innovative Solutions - The newly developed dual sealing technology combines Y221 and Y445 sealing devices with hydraulic anchors, effectively addressing long well section leakage and re-entry challenges [2] - This technology has shown a 100% success rate in 11 well operations, with an average effective period of 201 days and an estimated annual oil increase of 1,500 tons [2] Group 3: Economic Impact - The implementation of the dual sealing technology has generated a cumulative profit of 4 million yuan, with an expected annual profit of 5.5 million yuan [2] - The successful application of this technology not only provides an efficient solution for long well section leakage but also highlights the importance of technological innovation in reducing costs and enhancing development quality [2]