초록 ▼

A formation isolation valve assembly for use in a well includes first and second fluid paths that are coupled to at least first and second completion zones. A first valve controls fluid flow from the first zone to the first fluid path, and a second valve controls fluid flow from a second zone to the

A formation isolation valve assembly for use in a well includes first and second fluid paths that are coupled to at least first and second completion zones. A first valve controls fluid flow from the first zone to the first fluid path, and a second valve controls fluid flow from a second zone to the second fluid path. The valves may include ball valves and sleeve valves.

대표청구항 ▼

[ What is claimed is:] [1.]1. A valve assembly for use in a well comprising:first and second fluid paths, the first fluid path extending to a first zone at a first location in the well and the second fluid path extending to a second, different location, at least a portion of the second fluid path be

[ What is claimed is:] [1.]1. A valve assembly for use in a well comprising:first and second fluid paths, the first fluid path extending to a first zone at a first location in the well and the second fluid path extending to a second, different location, at least a portion of the second fluid path being an annular path around a portion of the first fluid path;a first valve for controlling fluid flow in the first fluid path;a second valve for controlling fluid flow in the second fluid path;a first operator to actuate the first valve;a second operator to actuate the second valve, wherein the first and second operators are operably coupled; anda lost motion mechanism between the first and second operators.