US2022290510A1PendingUtilityA1

Shape memory tripping object

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Assignee: STONE MATTHEWPriority: Mar 15, 2021Filed: Mar 15, 2021Published: Sep 15, 2022
Est. expiryMar 15, 2041(~14.7 yrs left)· nominal 20-yr term from priority
Inventors:Matthew StoneMichael H. JohnsonColin Andrew
E21B 43/26E21B 41/00E21B 34/142E21B 19/14
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Claims

Abstract

A tripping object including an object including a shape memory material and being stable in a second shape complementary to a landing feature and a first shape non-complementary to the seat, the object being transitioned from the second shape to the first shape upon being triggered. A method for operating a well including dropping a tripping object including a shape memory material on a landing feature in the well, and triggering the object to transition from a second shape to a first shape.

Claims

exact text as granted — not AI-modified
1 . A tripping object comprising:
 an object including a shape memory material and being stable in a second shape complementary to a landing feature and a first shape non-complementary to the landing feature, the object being transitioned from the second shape to the first shape upon being triggered.   
     
     
         2 . The object as claimed in  claim 1  wherein the object second shape is sealable to the landing feature. 
     
     
         3 . The object as claimed in  claim 1  wherein the object first shape allows flow through the landing feature. 
     
     
         4 . The object as claimed in  claim 1  comprising polyurethane. 
     
     
         5 . The object as claimed in  claim 1  comprising polyether. 
     
     
         6 . A method for operating a well comprising:
 dropping a tripping object comprising a shape memory material on a landing feature in the well; and   triggering the object to transition from a second shape to a first shape.   
     
     
         7 . The method as claimed in  claim 6 , further including retrieving the object from the well. 
     
     
         8 . The method as claimed in  claim 6  wherein the triggering is increasing a temperature of the object. 
     
     
         9 . The method as claimed in  claim 7  wherein the increasing is by allowing recovery of ambient well temperature. 
     
     
         10 . The method as claimed in  claim 6  wherein the triggering is pumping an activating solution. 
     
     
         11 . The method as claimed in  claim 10  wherein the solution is one or more of brine, oil, water, glycol, diesel fuel, or combinations including at least one of the foregoing. 
     
     
         12 . The method as claimed in  claim 6  wherein the second shape is complementary to the landing feature. 
     
     
         13 . The method as claimed in  claim 6  wherein the first shape allows flow through the landing feature. 
     
     
         14 . The method as claimed in  claim 6  wherein the landing feature is a seat. 
     
     
         15 . The method as claimed in  claim 6  wherein the retrieving is by circulating. 
     
     
         16 . A wellbore system comprising:
 a borehole in a subsurface formation;   a string in the borehole; and   the tripping object as claimed in  claim 1  disposed with the string.   
     
     
         17 . The wellbore system as claimed in  claim 16  further comprising a landing feature assembly in the string. 
     
     
         18 . The wellbore system as claimed in  claim 17  wherein the landing feature assembly includes a seat. 
     
     
         19 . The wellbore system as claimed in  claim 17  wherein the landing feature assembly is a fracturing assembly.

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