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Intelligent Well Technology has built up several years' production experience, remote flow control and monitoring capabilities can lead to significantly reduce production costs and improve reservoir management. Accurate downhole pressure monitoring data is critical for reservoir management. Traditionally, electrical sensors are used to obtain the measurements, but fiber optics sensing has become more popular due to many advantages over traditional sensors, such as long-term durability and distributed sensing in harsh conditions. At present, there are many kinds of fiber optic pressure sensing methods. How to determine the type of fiber optic pressure sensor and the running process plan based on the intelligent well technology and the complex downhole environment needs further research. Through investigation and research, this paper has been clear about the future development trend of distributed optical fiber pressure sensor, analysis the different types of optical fiber sensing principle and the performance parameters, respectively, carry out the intelligent well completion wellbore flow experiment and optical fiber pressure sensor reliability experiment with high temperature and high pressure, based on intelligent well completion wellbore flow pressure data, The resolution calculation and location optimization analysis of distributed pressure sensor are proposed. Combined with downhole high temperature and high pressure test data to carry out the optical fiber pressure sensor reliability research, analysis the effect of downhole environment on different packaging solutions, finally gives the suitable optical fiber pressure sensor selection and running process scheme for downhole long-term monitoring, provide theoretical reference for fiber optic pressure sensors engineering application in intelligent well completion downhole monitoring.
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