Title:
MITIGATING LEAKS IN PRODUCTION TUBULARS
Document Type and Number:
WIPO Patent Application WO/2012/005874
Kind Code:
A3
Abstract:
A well system can include a generally tubular production string extending to a surface location. A production packer seals off an annulus external to the production string. A swellable packer is interconnected in the production string between the production packer and the surface location. A method of mitigating a leak in a generally tubular production string can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to fluid leakage through a sidewall of the production string. Another method can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to a flow of hydrocarbons into the annulus from an interior of the production string.
More Like This:
Inventors:
MEBRATU AMARE A (NO)
Application Number:
PCT/US2011/040153
Publication Date:
March 29, 2012
Filing Date:
June 13, 2011
Export Citation:
Assignee:
HALLIBURTON ENERGY SERV INC (US)
MEBRATU AMARE A (NO)
MEBRATU AMARE A (NO)
International Classes:
E21B33/12; E21B23/06; E21B43/14
Domestic Patent References:
| WO2008155564A1 | 2008-12-24 |
Foreign References:
| US20090139707A1 | 2009-06-04 | |||
| US20040020662A1 | 2004-02-05 | |||
| US20090178800A1 | 2009-07-16 | |||
| US20050199401A1 | 2005-09-15 |
Attorney, Agent or Firm:
SMITH, Marlin, R. (P.C.P.O. Box 99, Rockwall TX, US)
Download PDF: