Internal slip including one or more symmetrical teeth

Abstract

Provided is an internal slip, a sealing/anchoring subassembly, a well system, and method. The internal slip, in one aspect, includes a tubular, the tubular having a tubular inner diameter (IDt) and a tubular outer diameter (ODt). The internal slip, in this aspect, further includes a first set of teeth disposed along the tubular inner diameter (IDt), the first set of teeth configured to engage with base teeth disposed on a base outer diameter (ODB) of a base positioned radially inside of the tubular. The internal slip, in this aspect, further includes a second set of teeth disposed along the tubular outer diameter (ODt), the second set of teeth configured to engage with stroke sleeve teeth disposed on a stroke sleeve outer diameter (ODSS) of a stroke sleeve positioned radially outside of the tubular, wherein one or more of the second set of teeth are generally symmetrical about a centerline thereof.

What is claimed is: 
     
         1 . An internal slip, comprising:
 a tubular, the tubular having a tubular inner diameter (ID t ) and a tubular outer diameter (OD t );   a first set of teeth disposed along the tubular inner diameter (ID t ), the first set of teeth configured to engage with base teeth disposed on a base outer diameter (OD B ) of a base positioned radially inside of the tubular; and   a second set of teeth disposed along the tubular outer diameter (OD t ), the second set of teeth configured to engage with stroke sleeve teeth disposed on a stroke sleeve outer diameter (OD SS ) of a stroke sleeve positioned radially outside of the tubular, wherein one or more of the second set of teeth are generally symmetrical about a centerline thereof.   
     
     
         2 . The internal slip as recited in  claim 1 , wherein the one or more of the second set of teeth are substantially symmetrical about the centerline thereof. 
     
     
         3 . The internal slip as recited in  claim 1 , wherein the one or more of the second set of teeth are ideally symmetrical about the centerline thereof. 
     
     
         4 . The internal slip as recited in  claim 1 , wherein tips of the one or more of the second set of teeth that are generally symmetrical are in a shape of a polygon. 
     
     
         5 . The internal slip as recited in  claim 4 , wherein sidewalls of the tips of the one or more of the second set of teeth that are generally symmetrical are angled relative to the centerline. 
     
     
         6 . The internal slip as recited in  claim 1 , wherein tips of the one or more of the second set of teeth that are generally symmetrical are in a shape of a triangle. 
     
     
         7 . The internal slip as recited in  claim 1 , wherein tips of the one or more of the second set of teeth that are generally symmetrical are in a shape of an arc. 
     
     
         8 . The internal slip as recited in  claim 1 , wherein the first set of teeth are not generally symmetrical about a different centerline thereof. 
     
     
         9 . The internal slip as recited in  claim 1 , wherein the tubular has a first end and a second end, and further wherein the tubular is circumferentially discontinuous proximate the second end. 
     
     
         10 . The internal slip as recited in  claim 9 , wherein the tubular is circumferentially continuous proximate the first end, and further including four or more slots in the second end of the tubular forming the circumferentially discontinuous second end, the four or more slots configured to reduce a radial stiffness of the tubular.