Methods and systems for preventing hydrostatic head within a well

Abstract

A tool with a deformable element that is configured to flex across an annulus based on a force being applied to an inner surface of the deformable element. The deformable element may be configured to be positioned within a chamber that is covered by a first rupture disc. The deformable element may include seals, flex joints, and a body.

1 . A downhole tool configured to be used in zonal isolation operations comprising:
 a mandrel;   a ledge;   a slot formed between an outer diameter of the mandrel and the inner diameter of the ledge;   a deformable element with a first end that is configured to freely slide within the slot along a linear axis, the deformable element including a stem configured to move from a first mode to a second mode.   
     
     
         2 . The downhole tool of  claim 1 , wherein in a first mode the stem has a first outside diameter and in the second mode the stem is deformed to have a second outside diameter, wherein the second mode an outer surface of the first end touches an inner surface of the ledge. 
     
     
         3 . The downhole tool of  claim 2 , wherein the second outside diameter being larger than the first outside diameter, wherein in the first mode an inner surface of the stem is not flexed and in the second mode the inner surface of the stem is flexed to create a convex bend. 
     
     
         4 . The downhole tool of  claim 1 , wherein the first end being configured to freely slide along a linear axis with the slot, wherein in the second mode the stem is permanently deformed. 
     
     
         5 . The downhole tool of  claim 1 , further including:
 a tapered slope configured to change a diameter across the deformable element.   
     
     
         6 . The downhole tool of  claim 5 , wherein the diameter across the deformable element at the first end is smaller than the diameter across a portion of the deformable element associated with the tapered slope. 
     
     
         7 . The downhole tool of  claim 5 , further comprising:
 a flex joint positioned between the tapered slope and the first end.   
     
     
         8 . The downhole tool of  claim 1 , wherein the tapered slope includes two ends positioned between the first end and a center of the deformable element. 
     
     
         9 . The downhole tool of  claim 1 , further comprising:
 a hole configured to expose an internal diameter of the deformable element to an inner diameter of the downhole tool.   
     
     
         10 . The downhole tool of  claim 1 , wherein the stem external diameter has a elastomer directly bonded to its surface. 
     
     
         11 . The downhole tool of  claim 10 , wherein the elastomer is positioned between a first flex joint and a second flex joint. 
     
     
         12 . The downhole tool of  claim 10 , wherein the elastomer is rubber, plastic, lower tensile rating steel or any other material that is softer and more elastic than a material forming the stem. 
     
     
         13 . The downhole tool of  claim 1 , further comprising:
 an elastomer coupled to an outer surface of the stem configured to seal an area above the elastomer from an area below the elastomer when the stem is in the second mode.   
     
     
         14 . A downhole tool configured to be used in zonal isolation operations comprising:
 a deformable element with a stem configured to move from a first mode to a second mode, wherein in the first mode an inner surface of the stem is not flexed and in the second mode the inner surface of the stem is flexed to create a convex bend, the deformable element having two ends that are configured to freely slide between a mandrel and a ledge.   
     
     
         15 . The downhole tool of  claim 14 , wherein in the first mode the stem has a first length and in the second mode the stem is deformed to have a second length, the second length being shorter than the first length, wherein the second mode an outer surface of the first end touches an inner surface of the ledge. 
     
     
         16 . The downhole tool of  claim 14 , wherein an inner diameter of the deformable element is in communication with the inner diameter of the downhole tool. 
     
     
         17 . The downhole tool of  claim 14 , further comprising:
 a flex joint extending from an outer surface of the body towards the inner surface of the stem, the inner surface of the stem positioned closer to a central axis of the downhole tool than the outer surface of the stem.   
     
     
         18 . The downhole tool of  claim 14 , further comprising:
 a tapered slope increasing a diameter across the body from a center the stem towards ends of the deformable element, wherein a thickness associated with the center of the stem is smaller than that of the tapered slope.   
     
     
         19 . The downhole tool of  claim 18 , wherein the thickness of a portion of the ends being smaller than the thickness associated with the tapered slope, wherein in the second mode the stem is permanently deformed. 
     
     
         20 . A method for utilizing downhole tool for zonal isolation operations comprising:
 forming a slot formed between an outer diameter of a mandrel and a inner diameter of the ledge;   freely sliding a first end of a deformable element within the slot along a linear axis, the deformable element including a stem configured to move from a first mode to a second mode.   
     
     
         21 . The method of  claim 20 , wherein in a first mode the stem has a first outside diameter and in the second mode the stem is deformed to have a second outside diameter, wherein the second mode an outer surface of the first end forms a seal against an inner surface of the ledge. 
     
     
         22 . The method of  claim 21 , wherein the second outside diameter being larger than the first outside diameter, wherein in the first mode an inner surface of the stem is not flexed and in the second mode the inner surface of the stem is flexed to create a convex bend. 
     
     
         23 . The method of  claim 20 , further comprising:
 directly bonding an elastomer directly coupled to an outer surface of the stem wherein the elastomer is positioned between a first flex joint of the stem and a second flex joint of the stem, wherein the elastomer is rubber, plastic, lower tensile rating steel or any other material that is softer and more elastic than a material forming the stem, wherein in the second mode the stem is permanently deformed.   
     
     
         24 . The method of  claim 20 , further comprising:
 sealing an area above an elastomer coupled to an outer surface of the stem from an area below the elastomer when the stem is in the second mode.