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.
Reservoir engineers consistently state that the measurement of most value to them is pressure. Fluid levels and flow can be directly calculated from pressure via empirical calculations. Smart Fibres DPTS gives true pressure and temperature measurements wherever a gauge is located. This gives advantage over, for instance, distributed temperature sensing where flow is derived from a set of assumptions of the interplay between flow and temperature; assumptions that cannot be verified as accurate.
In addition to its game changing cost effectiveness and true measurement, Smart Fibres' DPTS system also offers the following major technical advantages:
A major oil Company is already deploying DPTS technology in the middle east 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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