三级治理体系解“堵”

Core Viewpoint - The "773" blockage removal and sand prevention technology developed by Shengli Oilfield's Luming Company has shown significant results in oil well applications, providing replicable experiences for similar oil reservoir development [1][2] Group 1: Technology and Innovation - The "773" technology addresses seven types of blockage issues, including drilling mud pollution and sand-carrying liquid damage, through systematic analysis and collaborative efforts [1] - The technology employs a composite of seven technical measures, including segmented acidification and high-pressure water jet pulse negative pressure backflow, forming a three-level governance system of "dredging, stabilization, and prevention" [1] - A notable innovation is the D108 mm cone-shaped alloy tip, which integrates three previous operations into one, reducing the operation cycle by 20% and saving 30,000 yuan per well, significantly enhancing operational efficiency and cost-effectiveness [1] Group 2: Performance and Impact - After applying the technology in well Qu 9-斜259, the well pressure decreased from 14.5 MPa to 9.3 MPa, and the daily water injection increased from zero to 20 cubic meters [1] - The oil production from well Qu 9-斜242 increased from 3.5 tons to 4 tons, with a reduction in water cut by 4.4 percentage points and a rise in dynamic liquid level by 120 meters [1] - The technology has achieved key breakthroughs in multiple rounds of well sand prevention and protection of water-sensitive and fast-sensitive oil layers, forming a comprehensive technical system [2] Group 3: Future Developments - The technology is being promoted across different development units within the Jibei Oil Production Management Area, with significant implications for enhancing oil recovery rates in multi-round development [2] - The management area plans to continuously optimize process parameters to provide new technical support for efficient development [2]