Summary
Proposed assembly utilizes similar electronic downhole sensor but a revolutionary and practical data transmission system. Proposed product price is quite advantageous to the rival techniques Once deployed, users will not be dependent on service providers for a period of 18 months to two years
Analysis
For reservoir management, bottom hole pressure measurements against time and analyses of this data play a great role in optimizing the well performance, rock property evaluation, flow properties, downhole damage conditions, reservoir depletion and geometry.
Conventionally this requirement was being satisfied with the slickline run Amerada gauges and electric line run electronic gauges. Later, lower cost slick line run memory gauges were introduced.
Continuous recording of downhole data required permanent installations with the gauge being installed on a part of tubing (pup joint or side pocket mandrel) and the data transmission wire being extended to the surface wire clamps and special christmas tree apparatus.
Proposed system uses a proprietary data transmission system that combines acoustic transmission and magnetic data pick up telemetry at the surface. Additionally, data acquisition system appears to be improved for the operational longevity to survive 18 months.
Sonic Gauge reports that field trials have been conducted with Shell, Statoil and Cadogan Petroleum. With $ 25,000 price tag, this tool appears to have a wide use in the oil and gas industry.
