US 12,359,526 B2
Breaking object for a frangible plug
Tommy Eriksen, Yven (NO)
Assigned to TCO AS, Indre Arna (NO)
Filed by TCO AS, Indre Arna (NO)
Filed on Dec. 5, 2022, as Appl. No. 18/061,666.
Claims priority of application No. 20211548 (NO), filed on Dec. 20, 2021.
Prior Publication US 2023/0193718 A1, Jun. 22, 2023
Int. Cl. E21B 33/12 (2006.01)
CPC E21B 33/1208 (2013.01) 15 Claims
OG exemplary drawing
 
1. A plug tubular (200) system comprising:
a tubular body (312) comprising a housing (311); and
a plug assembly (100) comprising a breaker object (20) arranged in a breaker holder (31), a breaker retainer (24), and a plug (10);
wherein:
the plug assembly (100) is arranged with the housing (311);
the plug assembly has a first position where the plug (10) is not in contact with the breaker object (20) and a second position where the plug (10) is in contact with the breaker object (20);
the breaker object (20) is arranged to break the plug (10) in the second position;
the breaker object (20) is arranged in the breaker holder (31); and
the breaker retainer (24) is arranged to hold the breaker object (20) in the breaker holder (31) when in the second position,
wherein:
the breaker object (20) comprises an impact surface (22), where the impact surface is a projection of the plug (10) surface onto the breaker object (20),
wherein the impact surface (22) is a portion of a surface of an ellipsoid, a sphere, or a paraboloid.