一种油田井下多参数无线监测与信号补偿方法、系统、设备及存储介质
By using multi-parameter sensors, frequency domain analysis, and adaptive filtering technology in the oilfield downhole monitoring system, the problems of complex installation and poor stability caused by wired transmission have been solved, enabling real-time and reliable monitoring under high temperature and high pressure environments, and improving the safety and data accuracy of oil well production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN XINYUE PETROLEUM TECHNOLOGY CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing downhole monitoring methods in oilfields rely on wired transmission, which leads to complex installation, high maintenance costs, and poor stability under high temperature and high pressure environments, affecting the reliability of signal transmission.
The system employs downhole multi-parameter sensors for signal conditioning and analog-to-digital conversion, combined with frequency domain analysis and adaptive filtering for noise suppression. It constructs time-stamped data frames and inserts pilot sequences for coded modulation and transmission. The pilot sequences are used at the ground receiver for phase and frequency offset estimation, I/Q imbalance compensation and signal correction, and multi-parameter monitoring data is recovered for threshold determination and alarm.
It enables real-time and reliable monitoring of parameters such as temperature, pressure, and flow rate in a downhole high-temperature and high-pressure environment, improving the accuracy and real-time performance of the data and ensuring the safety and stability of oil well production.
Smart Images
Figure CN121024588B_ABST