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US 2014/0209385 A1Published application
Sealed Core
AssigneeSchlumberger Technology Corporation
InventorsLennox E. Reid, JR., Carsten Sonne
Life of this patent
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Abstract
A sidewall coring apparatus for obtaining a plurality of formation cores from a sidewall of a wellbore includes a core catching tube configured to be sealed downhole and to store at least one of the formation cores therein. The core catching tubes includes a first end that may be sealed by a first sealing mechanism, and an opposite end that may be sealed by a second sealing mechanism. The core catching tube also includes a fluid evacuation port that may be sealed downhole.
Claims20
An apparatus, comprising:
- a sidewall coring tool configured to obtain a plurality of sidewall formation cores from a sidewall of a wellbore extending into a subterranean formation, wherein the sidewall coring tool comprises:
- a core catching tube configured to store at least one of the plurality of sidewall formation cores therein, wherein the core catching tube comprises a fluid port configured to allow evacuation of fluid from the core catching tube as the at least one sidewall formation core is introduced therein, and wherein the core catching tube, including the fluid port, is configured to be sealed downhole;
- a first sealing mechanism configured to couple with a first end of the core catching tube, thus contributing to sealing of the at least one sidewall formation core in the core catching tube;
- and
- a second sealing mechanism configured to couple with a second end of the core catching tube, thus contributing to sealing of the at least one sidewall formation core in the core catching tube.
2 more elements
A method, comprising:
- obtaining, with a sidewall coring tool positioned in a wellbore extending into a subterranean formation, a sidewall core from a sidewall of the wellbore;
- moving the sidewall core into a core catching tube of the sidewall coring tool, wherein moving the sidewall core into the core catching tube displaces a fluid in the core catching tube through a port in the core catching tube;
- and
- coupling a first sealing mechanism to a first end of the core catching tube while the sidewall coring tool is in the wellbore;
- coupling a second sealing mechanism to an opposite end of the core catching tube while the sidewall coring tool is in the wellbore to seal the port.
2 more elements
Dependencies are inferred from the claim text.