Wellbore formation evaluation system and method
First Claim
1. A formation evaluation tool positionable in a wellbore penetrating a subterranean formation, comprising:
- a cooling system adapted to pass a cooling fluid near electronics in the formation evaluation tool whereby heat is dissipated therefrom, the electronics comprising at least one gauge;
a fluid communication device having an inlet adapted to receive the formation fluid; and
a flowline operatively connected to the fluid communication device and the at least one gauge for placing the formation fluid in fluid communication therewith whereby properties of the formation fluid are determined.
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Accused Products
Abstract
A formation evaluation tool positionable in a wellbore penetrating a subterranean formation is provided. The formation evaluation tool includes a cooling system adapted to pass a cooling fluid near electronics in the formation evaluation tool whereby heat is dissipated therefrom, the electronics has at least one gauge, a fluid communication device having an inlet adapted to receive the formation fluid and a flowline operatively connected to the fluid communication device and the gauge for placing the formation fluid in fluid communication therewith whereby properties of the formation fluid are determined. The formation evaluation tool may also be provided with a plurality of sample chambers operatively connected to the flowline for collecting at least a portion of the formation fluid and a pressure compensator in fluid communication with the wellbore and operatively connected to the plurality of sample chambers for applying pressure to the sample chambers whereby pressure is balanced therebetween.
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Citations
38 Claims
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1. A formation evaluation tool positionable in a wellbore penetrating a subterranean formation, comprising:
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a cooling system adapted to pass a cooling fluid near electronics in the formation evaluation tool whereby heat is dissipated therefrom, the electronics comprising at least one gauge;
a fluid communication device having an inlet adapted to receive the formation fluid; and
a flowline operatively connected to the fluid communication device and the at least one gauge for placing the formation fluid in fluid communication therewith whereby properties of the formation fluid are determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A formation evaluation tool positionable in a wellbore penetrating a subterranean formation, comprising:
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a fluid communication device having an inlet adapted to receive a formation fluid;
a flowline operatively connected to the fluid communication device;
a plurality of sample chambers operatively connected to the flowline for collecting at least a portion of the formation fluid; and
a pressure compensator in fluid communication with the wellbore and operatively connected to the plurality of sample chambers for applying pressure to the sample chambers whereby pressure is balanced therebetween. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of performing formation evaluation via a downhole tool positioned in a wellbore penetrating a subterranean formation, comprising:
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removing heat from electronics in the downhole tool by passing a cooling fluid near the electronics, the electronics comprising at least one gauge;
establishing fluid communication between a fluid communication device and the formation, the fluid communication device having an inlet adapted to receive a formation fluid from the formation;
establishing fluid communication between the inlet and the at least one gauge via a flowline; and
measuring at least one parameter of the formation fluid via the gauge. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A method of performing formation evaluation via a downhole tool positioned in a wellbore penetrating a subterranean formation, comprising:
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establishing fluid communication between a fluid communication device and the formation, the fluid communication device having an inlet adapted to receive a formation fluid from the formation;
drawing formation fluid through the inlet and into a plurality of sample chambers via a flowline, each of the plurality of sample chambers having a movable piston slidably positioned therein, the movable piston defining a variable volume sample cavity and a variable volume buffer cavity, the variable volume sample cavity adapted to receive the formation fluid;
establishing fluid communication between a wellbore cavity of a pressure compensator and the wellbore; and
balancing the pressure between the variable volume buffer cavities and the wellbore cavity. - View Dependent Claims (34, 35, 36, 37, 38)
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Specification