Wellbore surveillance system
AssigneeWelltec A/S
InventorJorgen Hallundbæk
Life of this patent
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Abstract
The present invention relates to wellbore surveillance system for obtaining fluid reservoir information data, such as the position and amount of gas, oil and/or water, while draining hydrocarbons from an oil or gas field via a casing in a wellbore in a formation, the casing having a vertical part near a top of the casing and an inner face, the system comprising a first sensor for measuring a content of gas, oil and/or water in the formation, and a second sensor for measuring a content of gas, oil and/or water in the formation.
Claims34
A wellbore surveillance system (1) for obtaining fluid reservoir information data, such as the position and amount of gas, oil and/or water, while draining hydrocarbons from an oil or gas field via a casing (2) in a wellbore (3) in a formation (4), the casing having a vertical part near a top (25) of the casing and an inner face, the system comprising:
- a first sensor (5) for measuring a content of gas, oil and/or water in the formation, and
- a second sensor (5) for measuring a content of gas, oil and/or water in the formation, wherein the first and the second sensors are arranged at least partly in a casing wall of the casing, and the second sensor is arranged at a distance from the first sensor.
Dependencies are inferred from the claim text.