US2009308619A1PendingUtilityA1

Method and apparatus for modifying flow

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Assignee: SCHLUMBERGER TECHNOLOGY CORPPriority: Jun 12, 2008Filed: Jun 4, 2009Published: Dec 17, 2009
Est. expiryJun 12, 2028(~1.9 yrs left)· nominal 20-yr term from priority
Inventors:Ives D. LoretzNitin Y. Vaidya
E21B 2200/02E21B 33/138E21B 34/06E21B 43/12
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Claims

Abstract

Disclosed herein are apparatuses and methods for packing off or choking a radial flow port through a tubular. In some embodiments, the apparatuses and methods comprise a support element and a polymeric element surrounding the support element. The polymeric element closes or chokes the radial flow port when contacted with the tubular.

Claims

exact text as granted — not AI-modified
1 . An apparatus for packing off a radial flow port through a tubular comprising:
 a support element; and   a polymeric element surrounding the support element, wherein the polymeric element closes the radial flow port when contacted with the tubular.   
   
   
       2 . The apparatus of  claim 1  wherein the polymeric element is a swellable elastomer. 
   
   
       3 . The apparatus of  claim 1  wherein the polymeric element is an elastomer. 
   
   
       4 . The apparatus of  claim 1  wherein the polymeric element is swellable. 
   
   
       5 . The apparatus of  claim 4  wherein the polymeric element swells in the presence of oil. 
   
   
       6 . The apparatus of  claim 4  wherein the polymeric element swells in the presence of a water-containing fluid. 
   
   
       7 . The apparatus of  claim 1  wherein the support element is a radial spring element. 
   
   
       8 . The apparatus of  claim 1  wherein the support element is an expandable tubular element. 
   
   
       9 . A method for closing a radial flow port through a tubular comprising:
 providing a pack off element radially inward from the radial flow port, wherein the pack off element comprises a support element and a polymeric element;   contacting the polymeric element with the radial flow port to close the radial flow port.   
   
   
       10 . The method of  claim 9  wherein the polymeric element is a swellable elastomer. 
   
   
       11 . The method of  claim 9  wherein the polymeric element is an elastomer. 
   
   
       12 . The method of  claim 9  wherein the polymeric element is swellable. 
   
   
       13 . The method of  claim 12  wherein the polymeric element swells in the presence of oil. 
   
   
       14 . The method of  claim 12  wherein the polymeric element swells in the presence of a water-containing fluid. 
   
   
       15 . The method of  claim 9  wherein the support element is a radial spring element. 
   
   
       16 . The method of  claim 9  wherein the support element is an expandable tubular element. 
   
   
       17 . An apparatus for choking flow through a radial flow port through a tubular comprising:
 a support element; and   a polymeric element surrounding the support element, wherein the polymeric element chokes flow through the radial flow port when contacted with the tubular.   
   
   
       18 . The apparatus of  claim 17  wherein the support element is a radial spring element. 
   
   
       19 . The apparatus of  claim 17  wherein the support element is an expandable tubular element. 
   
   
       20 . The apparatus of  claim 17  wherein the polymeric element is an elastomer.

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