초록 ▼

A method and associated apparatus provide enhanced safety in subterranean well completions while permitting other production issues to be addressed efficiently and cost effectively. In a preferred embodiment, a method of producing a subterranean well utilizes an isolation packer having an inner mand

A method and associated apparatus provide enhanced safety in subterranean well completions while permitting other production issues to be addressed efficiently and cost effectively. In a preferred embodiment, a method of producing a subterranean well utilizes an isolation packer having an inner mandrel through which fluid transmission lines and electrical transmission lines may be conveniently installed. A unique configuration of the packer permits a surface controlled subsurface safety valve, fluid property sensors, injection subs, etc., to be installed below the packer with the various lines used therewith extended axially through the mandrel.

대표청구항 ▼

[ What is claimed is:] [1.] Apparatus for use in producing a subterranean well, the well having a wellbore intersecting a formation from which fluid is to be flowed to the earth's surface, the apparatus comprising:a first packer having a first axial fluid passage, the first packer being settable in

[ What is claimed is:] [1.] Apparatus for use in producing a subterranean well, the well having a wellbore intersecting a formation from which fluid is to be flowed to the earth's surface, the apparatus comprising:a first packer having a first axial fluid passage, the first packer being settable in the wellbore between the formation and the earth's surface;a second packer having a second axial fluid passage, the second packer being settable in the wellbore between the first packer and the earth's surface; anda first tubing string interconnecting the first and second fluid passages, the first tubing string including a first valve selectively permitting and preventing fluid flow axially through the first tubing string, and the first tubing string further including a second valve interconnected between the first valve and the second packer, the second valve selectively permitting and preventing fluid flow through a sidewall portion of the first tubing string.