Objective
Geoservices, for many years, has operated down-hole pressure and temperature gauges to measure and record data at reservoir conditions in oil and gas wells.
Project target : Demonstration of the use of a full ASIC specially designed electronic chip (Application Specific Integrated Circuit) allows down-hole pressure and temperature gauges to perform at temperatures above 180°C, typically 1000 hours life time at 200°C.
As an installation, our new generation of gauges (MQG-X) already integrate a specially designed chip (HT-ASIC) developed by the SINTEF 4 years ago.
This ASIC replaces over 20 electronic components and has been implemented on gauges since 1994.
The fields results which are excellent, lead us to go one step forward : apply the same electronic integration method to the remaining active integrated circuits and sensible parts of the gauge.
The reliability improvement of the gauge at high temperature will open our activity to the rising "HP/HT market" (High Pressure/ High Temperature) in the North Sea, Italy, Gulf of Guinea, Arabian Gulf and the Far East
Installation in the field :
The pressure and temperature gauges are run down-hole in oil and gas wells, with a metallic wire (slick line) typically 0.092 "OD or clamped on a special drill collars (gauge carriers) when used in a DST (Drill Stem test). The depth can be over 5000 m and the temperature can reach 200°C. The gauges are battery powered and typical dimensions are 1"1/4 OD and 1m long.
Working principle :
The gauge consists of :
- 1 pressure sensor which converts the well down-hole pressure and temperature to electrical signals.
- 1 micro-controller which converts these signals to digital data
- 1 non volatile memory components where the data are stored.
The memory is download on surface through a computer which converts the raw data from the gauge into calibrated pressure and temperature information.
These values are then computed by reservoir engineers in order to characterize the reservoir behavior and evaluate its capacity to produce oil and/or gas within a profitable margin.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensors
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Call for proposal
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DEM - Demonstration contractsCoordinator
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France