2D Well Testing with Smart Plug Sensor
AssigneeSchlumberger Technology Corporation
InventorsYves Manin, Christian Chouzenoux
Life of this patent
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Abstract
An apparatus for characterising the permeability of a formation surrounding a wellbore, comprising: a drillstem test (DST) tool comprising, a packer for isolating a zone of the wellbore, a valve for controlling fluid into and out of the zone via the drill string of the tool and, a pressure gauge for detecting the pressure in the zone; wherein the apparatus further comprises an array of at least two antennas arranged on the tool above the packer such that when in use each antenna of the array aligns with a corresponding pressure sensor placed in the formation to obtain pressure measurements and therefore allow horizontal and vertical permeability to be determined.
Claims14
An apparatus for characterising the permeability of a formation surrounding a wellbore, comprising:
- a drillstem test (DST) tool comprising, a packer for isolating a zone of the wellbore, a valve for controlling fluid into and out of the zone via the drill string of the tool and, a pressure gauge for detecting the pressure in the zone;
- wherein the apparatus further comprises an array of at least two antennas arranged on the tool above the packer such that when in use each antenna of the array aligns with a corresponding pressure sensor placed in the formation to obtain pressure measurements and therefore allow horizontal and vertical permeability to be determined.
A sensor system for characterising the permeability of a formation surrounding a wellbore in two dimensions, comprising:
- at least two sensors in the formation surrounding the wellbore;
- and an apparatus comprising, a DST tool comprising, a packer for isolating a zone of the wellbore, a pressure gauge for recording the pressure in the zone, and a valve for controlling fluid into and out of the zone via the drillstring of the tool, and an array of at least two antennas arranged on the tool above the packer such that each antenna of the array aligns with a corresponding pressure sensor in the formation.
Dependencies are inferred from the claim text.