Jubarte PRM System Manufacturing and Installation Lessons Learned

Maas, Stef; Bunn, J.; Metzbower, D. Rick; Smith, Andy; Stickler, D.

doi:10.3997/2214-4609.201411964

Cited by 3 publications

(1 citation statement)

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“…Several manufacturers offer multi-component optical seismic tools at different stages of development. A large array of ocean-bottom multi-component sensors has been deployed over Jubarte, a deep-waters Brazilian offshore field [5]. The sensor array, OptoSeis, developed by Petroleum GeoServices and now owned by Geospace, is reported to give substantially good data.…”

Section: Fiber-optic Accelerometersmentioning

confidence: 99%

Enabling persistent monitoring of littoral areas with smart unmanned assets

Haldorsen¹,

Christensen

Metzbower

et al. 2023

Ocean Sensing and Monitoring XV

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Recent incidences of sabotage of Oil & Gas pipelines in the Baltic Sea have made it clear that sub-sea pipelines are vulnerable and will require surveillance for protection.Harbors and ports are noisy. Pressure measurements from hydrophones allow only measurements of signal arrival times. With only this information, a dense, spatially-dispersed sensor array is required for detection and localization. Using vector sensors allow additional estimation of direction of propagation at each measurement point, allowing separating signals from multiple sources. A smaller number of vector sensors can replace a larger number of scalar pressure sensors. Static sea-floor deployment of the sensor array, allows accurate mapping after deployment, reducing inaccuracies in sensor locations found in mobile systems.We describe a method that allows using multi-component sea-floor sensors to identify and track any source of acoustic energy even when the orientations of the multi-component sensors are unknown. Sources that satisfy certain simple assumptions can be used to find the absolute orientation of the multi-component sensors. The methodology allows using a simplified sensor array where a short-interval fiber-optic DAS array is combined with a sparse array of twocomponent, transverse-only, point sensors. We describe optical multi-component accelerometers, that are easily combinable with DAS sensor arrays. Without electronics, there is no need for power -and the risk of failure of electronics left for a long period of time is eliminated, significantly increasing the lifetime of the installation. The acquisition system for the hybrid optical array will be simpler and enable "always-on" monitoring.

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Section: Fiber-optic Accelerometersmentioning

confidence: 99%

Enabling persistent monitoring of littoral areas with smart unmanned assets

Haldorsen¹,

Christensen

Metzbower

et al. 2023

Ocean Sensing and Monitoring XV

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Review on Low-Noise Broadband Fiber Optic Seismic Sensor and Its Applications

Huang

Zhang

et al. 2023

J. Lightwave Technol.

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A three-component optical sensor for borehole seismic applications

et al. 2021

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We describe a new optical three-component accelerometer for borehole applications. Field data acquired in early 2020 in a fiber-optic-instrumented well in Houston, Texas, show that the new optical accelerometer is a viable borehole seismic sensor, measuring signals at frequencies from subhertz to hundreds of hertz. It is argued that an array of these sensors could be used to complement distributed acoustic sensing (DAS) technology to compensate for the inability of DAS sensors to measure wavefield polarization. This hybrid fiber-optic receiver array would be a fully optical wide-bandwidth sensor array without any electronics in the well. With a maximum operational temperature expected to exceed 200°C, this array would not be affected significantly by possible high temperatures in the near-reservoir section of the well.

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Jubarte PRM System Manufacturing and Installation Lessons Learned

Cited by 3 publications

References 0 publications

Enabling persistent monitoring of littoral areas with smart unmanned assets

Enabling persistent monitoring of littoral areas with smart unmanned assets

Review on Low-Noise Broadband Fiber Optic Seismic Sensor and Its Applications

A three-component optical sensor for borehole seismic applications

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