Apparatus and method for sensing downhole parameters
AssigneeSchlumberger Technology Corporation
InventorsColin Longfield, Yves Barriol, Douglas Grant
Life of this patent
Estimating the term…
Abstract
A sensor plug positionable in a perforation extending into a wall of a wellbore penetrating a subterranean formation is provided. The sensor plug includes a plug sleeve disposable in a perforation extending through the wellbore wall, a pin positionable in the plug sleeve a sensor and circuitry. The pin is adapted to expand the plug sleeve as it is advanced therein whereby the plug sleeve seals the perforation. The sensor plug may be deployed into the sidewall of the wellbore by a downhole tool.
Claims27
A sensor plug positionable in a perforation extending into a wall of a wellbore penetrating a subterranean formation, comprising:
- a plug sleeve disposable in a perforation extending through the wellbore wall;
- a pin positionable in the plug sleeve, the pin adapted to expand the plug sleeve as it is advanced therein whereby the plug sleeve seals the perforation;
- a sensor for measuring downhole properties;
- and
- circuitry operatively connected to the sensor.
A method of sensing downhole parameters of a wellbore penetrating a subterranean formation, comprising:
- positioning a plug sleeve in a perforation in a sidewall of the wellbore;
- sealing the perforation by advancing a pin into the plug sleeve;
- and
- sensing at least one downhole parameter from a sensor positioned in one of the sleeve and the pin.
A communication system for sensing downhole parameters of a wellbore penetrating a subterranean formation, comprising:
- a sensor plug positionable in a perforation extending into the wall of the wellbore, comprising:
- a plug sleeve disposable in a perforation extending through the wellbore wall;
- a pin positionable in the plug sleeve, the pin adapted to expand the plug sleeve as it is advanced therein whereby the plug sleeve seals the perforation;
- a sensor for measuring downhole properties;
- and
- circuitry operatively connected to the sensor a downhole tool positionable in the wellbore, the downhole tool adapted to communicate with the sensor plug;
- and
- a surface unit in communication with the downhole tool.
Dependencies are inferred from the claim text.