US 7,578,354 B2
Device and method to seal boreholes
Neil Thomson, The Hague (Netherlands)
Assigned to E2Tech Limited, The Hague (Netherlands)
Filed on Jun. 11, 2007, as Appl. No. 11/761,283.
Application 11/761283 is a continuation of application No. 10/470199, granted, now 7,228,915, previously published as PCT/GB02/00362, filed on Jan. 28, 2002.
Claims priority of application No. 0102023.9 (GB), filed on Jan. 26, 2001; and application No. 0102526.1 (GB), filed on Feb. 01, 2001.
Prior Publication US 2008/0000646 A1, Jan. 03, 2008
Int. Cl. E21B 33/12 (2006.01)
U.S. Cl. 166—387  [166/207; 277/322; 277/934; 277/944] 28 Claims
OG exemplary drawing
 
18. A method for isolating a well, comprising:
running a sealing apparatus into the wellbore, the sealing apparatus including:
a tubular body; and
a swelling element disposed around an outer surface of the tubular body; and
expanding the sealing apparatus to allow the swelling element to contact the wellbore as the swelling element swells.