The data you need at a price you can afford

In a depressed Oil and Gas market, expenditure on the most optimum downhole completion system, components and designs, including critical reservoir monitoring systems, is often sacrificed as budget constraints bite. As a result, Reservoir Engineers and Production Technologists are not able to fully monitor the reservoir and identify, diagnose and take appropriate remedial actions. As a result, operators are missing out on the opportunity to, for example, optimise production or injection profiles and isolate water producing zones based on multi-zone data acquisition and analysis. The end result is that well and reservoir management is often compromised over the life of the well, resulting in reduced hydrocarbon recovery.

Smart Fibres have developed a solution to this challenge with a cost effective Fibre Optic Distributed Pressure and Temperature Sensing System (DPTS). Using Fibre Bragg Grating (FBG) technology, DPTS offers a considerable cost saving compared to traditional Quartz based monitoring systems, especially when multiple FBG gauges are deployed.  As an example a typical 4 zone installation would be approximately 1/3 of the cost of a Quartz gauge equivalent.

In addition, the DPTS system offers the following major technical advantages: 

  • Reliability – No downhole electronics and minimal parts. Only optical power required from surface to downhole so no long term degradation
  • Safety – Intrinsically safe due to lack of electrical power requirements at surface and downhole.
  • Integration – DTS and DAS can be integrated within the fibre cable if required.
  • Multi-drop – Typically 15 or more gauges can be multiplexed over just 2 fibres encapsulated in a ¼” control line/cable over tens of Km. Adding more fibres allows more gauges.
  • HPHT capability – Currently rated at 200 degC and up to 20,000 psi, 280 degC variant in development

Shell are already deploying DPTS technology via PDO Oman for fluid contact monitoring, with multiple installations planned from 2017.

In summary, Smart Fibres' DPTS technology offers a cost effective alternative to electrical sensing systems with improved reliability, flexibility and safety.

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