Isolation system comprising a plug and a circulation valve...

Details Isolation system comprising a plug and a circulation valve... Isolation system comprising a plug and a circulation valve...

2007-04-20

2010-10-12

Gay, Jennifer H (Department: 3676)

Wells

Processes

Placing or shifting well part

C166S387000, C166S332400, C166S373000

Reexamination Certificate

active

07810575

ABSTRACT:
An isolation system for an oil and gas well is described wherein the system comprises an isolation section and a first isolation device integral with the section and a second isolation device sealingly engaged to the section. The first isolation device may be a pressure-actuated valve and the second isolation device may be a plug.

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