Hydraulic spider tubular centering systems and methods for use thereof
AssigneeForum US, Inc.
InventorsRumen Mittelstädt, Arne Pross
Life of this patent
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Abstract
A tubular centralizer including a housing, a guide plate, and a pin. The housing has a plurality of adjustment pin holes. The guide plate is at least partially disposed within the housing and movable between a retracted position and an extended position. The guide plate includes a plurality of adjustment pin slots. The pin is positioned in a first adjustment pin hole of the plurality of adjustment pin holes, and in a first adjustment pin slot of the guide plate. A length of the first adjustment pin slot within which the pin is positioned sets a limit of the extended position and the retracted position of the guide plate.
Claims19
A tubular centralizer, comprising:
- a housing comprising a plurality of adjustment pin holes disposed through a top surface of the housing, and a plurality of bottom adjustment pin holes disposed through a bottom surface of the housing;
- a guide plate at least partially disposed within the housing and movable between a retracted position and an extended position, wherein the guide plate comprises a plurality of adjustment pin slots;
- and
- a pin positioned in a first adjustment pin hole of the plurality of adjustment pin holes and a first adjustment pin slot of the guide plate, wherein a length of the first adjustment pin slot within which the pin is positioned sets a limit of the extended position and the retracted position of the guide plate.
A tubular centering system, comprising:
- a hydraulic spider, wherein the hydraulic spider comprises a bore;
- and
- a plurality of centralizers coupled to the hydraulic spider, wherein each of the plurality of centralizers comprises:
- a housing comprising a plurality of adjustment pin holes;
- a guide plate at least partially disposed within the housing and movable between a retracted position and an extended position, wherein the guide plate comprises a plurality of adjustment pin slots;
- a pin positioned in a first adjustment pin hole of the plurality of adjustment pin holes and a first adjustment pin slot of the guide plate, wherein a length of the first adjustment pin slot within which the pin is positioned sets a limit of the extended position and the retracted position;
- and
- a piston assembly configured to move the guide plate between the extended position and the retracted position.
A tubular centralizer, comprising:
- a housing comprising a plurality of adjustment pin holes;
- a guide plate at least partially disposed within the housing and movable between a retracted position and an extended position, wherein the guide plate comprises a plurality of adjustment pin slots;
- a pin positioned in a first adjustment pin hole of the plurality of adjustment pin holes and a first adjustment pin slot of the guide plate, wherein a length of the first adjustment pin slot within which the pin is positioned sets a limit of the extended position and the retracted position of the guide plate;
- and
- a friction plate disposed on the guide plate, wherein the friction plate comprises a plurality of friction plate slots disposed therethrough.
A tubular centralizer, comprising:
- a housing comprising a plurality of adjustment pin holes;
- a guide plate at least partially disposed within the housing and movable between a retracted position and an extended position, wherein the guide plate comprises a plurality of adjustment pin slots;
- a pin positioned in a first adjustment pin hole of the plurality of adjustment pin holes and a first adjustment pin slot of the guide plate, wherein a length of the first adjustment pin slot within which the pin is positioned sets a limit of the extended position and the retracted position of the guide plate;
- and
- a piston assembly, wherein the piston assembly is configured to move the guide plate between the extended position and the retracted position.
Dependencies are inferred from the claim text.