include landing nipples 30 b to engage a nipple profile not shown in the defective valve 20 the valve body 30 a may be sealingly engaged to the defective valve 20 using o rings or other suitable sealing elements 30 b a lower end 30 c of the valve body 30 a may be suitably shaped to cause the flapper 24 to open flow ports 36 may be provided at a selected position along the length of the valve body 30 a to enable fluid flow through the upper part of the valve body 30 a while maintaining a suitably sealed enclosure for batteries and control electronics 38 such electronics 38 may include an acoustic transducer not shown separately for receiving acoustic commands from the system at the surface or alternatively may include an acoustic or electromagnetic transducer for communication with a sonde 42 moved through the tubing 16 using an armored electrical cable 40 a corresponding transducer 44 in the sonde 42 may provide one or two way signal communication between the sonde 42 and the valve system 30 a valve flapper 34 is disposed in the valve body 30 a such that upon receipt of a suitable command or otherwise as will be further explained the electronics 38 will cause an actuator not shown to open.