PETROCHINA(SH:601857) Zhong Guo Xin Wen Wang·2025-07-14 22:24Core Insights - Daqing Oilfield has successfully reduced water content in the Xin Nan oilfield by 2.3 percentage points compared to the same period last year, while exceeding crude oil production targets since the beginning of the year [1][3] Group 1: Production and Efficiency - The Xin Nan oilfield is currently in a stage of ultra-high water content development, facing challenges such as low utilization of water drive in thin layers and severe ineffective cycles [3] - Technical personnel have implemented various strategies to enhance effective water injection, including optimizing layer segmentation, increasing low-pressure well management, and classifying thin layer reservoirs [3] - The thickness of sandstone utilization has increased to 79.6% through the combination of layer segmentation adjustment and near-resistance combination adjustment technology [3] Group 2: Water Injection Management - Daily water injection has reached 1,000 cubic meters, showing significant improvement in water management [3] - The transition from "injecting enough water" to "steady water injection" has been achieved through the use of digital platforms and intelligent control technologies [3] - The proactive washing of wells has increased by 32.6%, resulting in a reduction of 119 instances of decreased water absorption capacity, which has led to a daily decrease in affected water volume by 1,158 cubic meters [3]