Tendeka Installs 1st Reservoir Monitoring System Offshore Congo

Tendeka has successfully completed the first installation of an optical reservoir monitoring system in an offshore platform well for a major operator in West Africa.

The monitoring solution consisted of Tendeka's Sentinel distributed temperature sensing (DTS) system combined with four SmartCell optical pressure and temperature gauges. When integrated with DTS, the gauges provide a complete real-time pressure and temperature profile of the reservoir, enabling the operator to optimize well performance. The pressure gauges enable more accurate interpretation of the inflow profile and analysis of phase contributions along the horizontal interval increasing efficiency and passing on significant cost savings.

Data is continuously available in real-time providing enhanced understanding of flow contribution and immediate detection of water breakthrough.

Gary Smart, chief operating officer for Tendeka commented, "This is a significant achievement for Tendeka as it is the first time we have installed this solution offshore West Africa. The safe and successful completion of this project, in challenging conditions, is testament to our field engineering and project management expertise."

The 900m horizontal openhole was completed using 6 5/8" sand screens with external swell packers for zonal isolation of the three reservoir sections. The upper completion conveys the monitoring system on a 2 3/8" stinger inside the sand screens. The stinger is suspended from an ESP system and a high set production packer. DTS provides monitoring across the whole reservoir section whilst each of the three zones has a single point pressure gauge. A fourth pressure gauge is located above the reservoir to provide co-mingled pressure and temperature data.


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