Expandable sealing apparatus

Details Expandable sealing apparatus Expandable sealing apparatus

2005-06-21

2005-06-21

Tsay, Frank (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S208000

Reexamination Certificate

active

06907937

ABSTRACT:
The present invention generally relates to an apparatus for sealing a wellbore. The sealing apparatus includes an expandable tubular body having one or more sealing elements disposed thereon. In one aspect, the sealing elements include swelling and non-swelling sealing elements. Preferably, the swelling sealing elements are made of a swelling elastomer capable of swelling upon activation by an activating agent. The swelling elements may be covered with a protective layer during the run-in. When the tubular body is expanded, the protective layer breaks, thereby exposing the swelling elements to the activating agent. In turn, the swelling elements swell and contact the wellbore to form a fluid tight seal.

REFERENCES:
patent: 2306160 (1942-12-01), Freyssinet
patent: 2519116 (1950-08-01), Crake
patent: 2656891 (1953-10-01), Toelke
patent: 2814517 (1957-11-01), Razdow
patent: 2945541 (1960-07-01), Maly et al.
patent: 3147016 (1964-09-01), Traufler
patent: 3385367 (1968-05-01), Kollsman
patent: 3593799 (1971-07-01), Boughton et al.
patent: 3677987 (1972-07-01), Pence, Jr.
patent: 3690375 (1972-09-01), Shillander
patent: 3740360 (1973-06-01), Nimerick
patent: 3918523 (1975-11-01), Stuber
patent: 4078606 (1978-03-01), Montgomery
patent: 4137970 (1979-02-01), Laflin et al.
patent: 4253676 (1981-03-01), Baker et al.
patent: 4300775 (1981-11-01), Ringel
patent: 4403660 (1983-09-01), Coone
patent: 4406469 (1983-09-01), Allison
patent: 4452463 (1984-06-01), Buckner
patent: 4457369 (1984-07-01), Henderson
patent: 4601498 (1986-07-01), Haugen
patent: 4633950 (1987-01-01), Delhommer et al.
patent: 4662450 (1987-05-01), Haugen
patent: 4674570 (1987-06-01), Jackson
patent: 4730670 (1988-03-01), Kim
patent: 4762179 (1988-08-01), Wesson et al.
patent: 4836940 (1989-06-01), Alexander
patent: 4862967 (1989-09-01), Harris
patent: 4886117 (1989-12-01), Patel
patent: 4907651 (1990-03-01), Bou-Mikael
patent: 4913232 (1990-04-01), Cheymol et al.
patent: 4919989 (1990-04-01), Colangelo
patent: 4936386 (1990-06-01), Colangelo
patent: 5086841 (1992-02-01), Reid et al.
patent: 5165703 (1992-11-01), Morvant
patent: 5226492 (1993-07-01), Solaeche P. et al.
patent: 5271469 (1993-12-01), Brooks et al.
patent: 5309993 (1994-05-01), Coon et al.
patent: 5311938 (1994-05-01), Hendrickson et al.
patent: 5511620 (1996-04-01), Baugh et al.
patent: 5605195 (1997-02-01), Eslinger et al.
patent: 5623993 (1997-04-01), Van Buskirk et al.
patent: 5676384 (1997-10-01), Culpepper
patent: 5687748 (1997-11-01), Conrad et al.
patent: 5749585 (1998-05-01), Lembcke
patent: 5787987 (1998-08-01), Forsyth et al.
patent: 5803178 (1998-09-01), Cain
patent: 5833001 (1998-11-01), Song et al.
patent: 5875847 (1999-03-01), Forsyth
patent: 5941313 (1999-08-01), Arizmendi
patent: 6009951 (2000-01-01), Coronado et al.
patent: 6041858 (2000-03-01), Arizmendi
patent: 6073692 (2000-06-01), Wood et al.
patent: 6431282 (2002-08-01), Bosma et al.
patent: 6446717 (2002-09-01), White et al.
patent: 6561227 (2003-05-01), Cook et al.
patent: 6662876 (2003-12-01), Lauritzen
patent: 6698517 (2004-03-01), Simpson et al.
patent: 6702029 (2004-03-01), Metcalfe et al.
patent: 0 237 662 (1987-09-01), None
patent: WO 02/20941 (2002-03-01), None
patent: WO 02/059452 (2002-08-01), None
U.S. Appl. No. 10/443,442, filed May 22, 2003, Whanger et al.
U.S. Appl. No. 10/317,843, filed Dec. 12, 2002, Whanger et al.
U.S. Appl. No. 10/255,571, filed Sep. 26, 2002, Stephenson.
U.S. Appl. No. 10/034,592, filed Dec. 28, 2001, Lauritzen et al.
U.K. Search Report, Application No. GB 0329659.7, dated Feb. 27, 2004.

Affiliated with

Also associated with

Rating

Expandable sealing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandable sealing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable sealing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3462178