초록 ▼

A system for individually controlling the inflation and deflation of individual packers mounted on a casing is disclosed. The system includes a packer valve (36) mounted on the casing (24). The valve is in fluid communication with one of the packers (28). A probe (124) is movable within the casing t

A system for individually controlling the inflation and deflation of individual packers mounted on a casing is disclosed. The system includes a packer valve (36) mounted on the casing (24). The valve is in fluid communication with one of the packers (28). A probe (124) is movable within the casing to access packer valve to inflate or deflate the related packer (28). The packer valve includes a body having a bore (40), a valve closure conduit (42) and a valve opening conduit (44), each in communication with the bore. In one embodiment, the valve further includes a packer inlet/outlet conduit (50) connecting the bore to the packer, and a packer/valve conduit (54) in communication with the bore (40) and the packer inlet/outlet conduit. In another embodiment, the bore is directly communicated with the interior of the packer. The packer valve also includes a valve pin (41) reciprocatably mounted in the bore. The probe (124) has a valve opening fluid line that, when connected to the valve opening conduit, causes the valve pin to move to a valve open position. When in the packer valve open position, the packer can be inflated or deflated by continuing to apply fluid pressure to the valve opening conduit or removing fluid pressure therefrom, to inflate or deflate the packer. The probe has a valve closing fluid line that, when connected to the valve closure conduit, causes the valve pin to move to a valve closed position and prevent the inflation or deflation of the packer.

대표청구항 ▼

[The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.]a body having a bore, a valve closure conduit in communication with said bore, a valve opening conduit in communication with said bore, a packer inlet/outlet conduit connectable to a

[The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.]a body having a bore, a valve closure conduit in communication with said bore, a valve opening conduit in communication with said bore, a packer inlet/outlet conduit connectable to a packer mounted on a casing, and a packer/valve conduit in communication with said bore and with said packer inlet/outlet conduit; anda pin reciprocatably mounted in said bore, said pin movable to a first position by fluid entering said valve closure conduit, said first position blocking said packer/valve conduit to prevent fluid from passing into and out of said packer, said pin movable to a second position by fluid entering said valve opening conduit, said second position allowing fluid to pass into and out of said packer through said packer inlet/outlet conduit and through said packer/valve conduit;wherein said packer/valve conduit is in communication with said valve opening conduit when said pin is in said second position.