Fiber optic leak detection monitoring technology primarily utilizes distributed acoustic sensing (DAS) to provide real-time, accurate reconstruction of downhole vibrations for evaluating wellbore integrity. It employs a combination of DAS and distributed temperature sensing (DTS) to identify and pinpoint specific leakage locations through cross-validation.

Fluid flow generates noise due to vibrations of the fluid itself and the surrounding medium. The amplitude of sound energy is related to flow rate, with higher flow rates producing greater energy. The frequency of sound energy correlates with the flow path; smaller paths result in higher frequencies.

Scope of application:

During the production of oil and gas field, the central air pressure rises and the wellbore pressure test is not up to the standard.

Features and Advantages

Adaptable to various types and scales of oil and gas well monitoring needs, with strong adaptability and flexibility.

Enables distributed, all-weather monitoring of wellbore vibrations and temperature changes.

Provides continuous monitoring data and spatial information distribution.

Allows for manual intervention by adjusting annulus pressure or injecting nitrogen to amplify abnormal leakage signals.

Accurately locates abnormal conditions and effectively differentiates between monitoring points or regions in space.

Facilitates precise detection and localization of minor leaks, pressure changes, and other anomalies, enabling accurate identification of wellbore leakage zones.

Highly sensitive to minor seepages.

Application situation：