大庆油田：新技术给注水井装上“智慧眼”

Core Viewpoint - Daqing Oilfield has successfully implemented cable-controlled intelligent layered water injection technology, achieving a qualified rate of over 92% for experimental water wells, addressing issues of long operation time and low efficiency in conventional single-well measurement and adjustment [1][2]. Group 1: Technology Development - The cable-controlled intelligent layered water injection technology utilizes cables as power and communication carriers for downhole water distribution devices, enabling continuous monitoring and adjustment of water injection in different layers [2]. - This technology allows for remote monitoring of water injection flow, temperature, and pressure, facilitating dynamic adjustments to optimize water distribution and improve oil recovery [2]. Group 2: Historical Context - Daqing Oilfield developed China's first hydraulic pressure differential packer in the 1960s to meet the needs of water injection development, marking a significant advancement in layered water injection technology [1]. - The oilfield has since developed multiple generations of layered water injection technologies, supporting high and stable production at different stages of oilfield development [1]. Group 3: Implementation and Impact - A project team has been established to promote the large-scale application of the cable-controlled intelligent layered water injection technology, with 83 water wells in Daqing Oilfield's production plant already implemented [2]. - The technology not only ensures a high qualified rate for layered water injection but also reduces the workload for verification and sealing measurements, providing substantial data support for reservoir analysis and evaluation [2].