Downhole sealing device and method of making

Abstract

Disclosed herein is a downhole sealing device. The device includes, a swellable member, and a passageway having a perimetrically continuous wall. The swellable member is configured to cause sealing between a downhole structure and a plurality of tubulars when in a swelled condition, the plurality of tubulars are routed through a plurality of voids extending longitudinally through the swellable member, each of the plurality of voids has perimetrically continuous walls surrounding each of the plurality of tubulars.

1 . A downhole sealing device, comprising:
 a swellable member; and   a passageway having a perimetrically continuous wall, the swellable member configured to cause sealing between a downhole structure and a plurality of tubulars in response to being in a swelled condition, the plurality of tubulars being routed through a plurality of voids extending longitudinally through the swellable member, each of the plurality of voids having perimetrically continuous walls surrounding each of the plurality of tubulars.   
   
   
       2 . The downhole sealing device of  claim 1 , wherein the passageway is through one of the plurality of tubulars. 
   
   
       3 . The downhole sealing device of  claim 1 , wherein the swellable member is polymeric. 
   
   
       4 . The downhole sealing device of  claim 1 , wherein the passageway is a control line. 
   
   
       5 . The downhole sealing device of  claim 1 , wherein the passageway permits passage of at least one selected from a group consisting of fluid, electrical conductors and fiber optic cable. 
   
   
       6 . A downhole swellable sealing system with passageway, comprising:
 at least one substantially nonswellable member; and   a swellable member in operable communication with the at least one substantially nonswellable member configured to cause sealing between a downhole structure and a plurality of tubulars in response to being in a swelled condition, the plurality of tubulars being routed through a plurality of voids extending longitudinally through at least one of the swellable member and the at least one substantially nonswellable member, each of the plurality of voids having perimetrically continuous walls surrounding each of the plurality of tubulars.   
   
   
       7 . The downhole swellable sealing system with passageway  claim 6 , wherein one of the at least one substantially nonswellable member forms a dam for the swellable member. 
   
   
       8 . The downhole swellable sealing system with passageway  claim 6 , wherein the at least one substantially nonswellable member is two substantially nonswellable members forming two dams with one dam being located on either longitudinal end of the swellable member. 
   
   
       9 . The downhole swellable sealing system with passageway  claim 6 , wherein the swellable member perimetrically surrounds the at least one substantially nonswellable member. 
   
   
       10 . The downhole swellable sealing system with passageway  claim 6 , wherein at least one of the at least one substantially nonswellable member is polymeric. 
   
   
       11 . The downhole swellable sealing system with passageway  claim 6 , wherein the plurality of voids extend longitudinally through the at least one substantially nonswellable member. 
   
   
       12 . The downhole swellable sealing system with passageway  claim 6 , wherein the plurality of voids extend longitudinally through the swellable member. 
   
   
       13 . A method of making a downhole swellable seal with a passageway therethrough, comprising:
 perimetrically surrounding a first tubular with a first substantially nonswellable material;   perimetrically surrounding at least one second tubular with a second substantially nonswellable material;   positioning the at least one second tubular adjacent the first tubular;   perimetrically surrounding the first tubular and the at least one second tubular with a swellable material;   curing the first substantially nonswellable material;   curing the second substantially nonswellable material; and   curing the swellable material.   
   
   
       14 . The method of making the downhole swellable seal with a passageway therethrough of  claim 13 , further comprising:
 withdrawing the at least one second tubular from the second substantially nonswellable material;   leaving a void with perimetrically continuous walls in the second substantially nonswellable material; and   inserting a third tubular into the void.   
   
   
       15 . The method of making the downhole swellable seal with a passageway therethrough of  claim 14 , further comprising connecting the third tubular to the at least one second tubular prior to withdrawing the at least one second tubular. 
   
   
       16 . The method of making the downhole swellable seal with a passageway therethrough of  claim 13 , further comprising sealing the first tubular to the first substantially nonswellable material and sealing the at least one second tubular to the second substantially nonswellable material. 
   
   
       17 . The method of making the downhole swellable seal with a passageway therethrough of  claim 13 , further comprising applying a release agent to the at least one second tubular prior to the surrounding with substantially nonswellable material. 
   
   
       18 . The method of making the downhole swellable seal with a passageway therethrough of  claim 13 , further comprising damming the swellable material with at least one of the substantially nonswellable materials. 
   
   
       19 . The method of making the downhole swellable seal with a passageway therethrough of  claim 18 , further comprising sealably attaching a mechanical device to the at least one second tubular and to the substantially nonswellable material that is damming the swellable material. 
   
   
       20 . The method of making the downhole swellable seal with a passageway therethrough of  claim 19 , wherein the sealably attaching of the mechanical device to the at least one second tubular is a metal-to-metal seal. 
   
   
       21 . The method of making the downhole swellable seal with a passageway therethrough of  claim 19 , wherein the sealably attaching includes immobilizing the at least one second tubular with respect to the substantially nonswellable material that is damming the swellable material. 
   
   
       22 . The method of making the downhole swellable seal with a passageway therethrough of  claim 13 , further comprising perimetrically surrounding at least one of the first substantially nonswellable material and the second substantially nonswellable material with the swellable material.