Realize that slicing mining and motionless tubular column trade flow string of layer exploitation

The utility model discloses a realize that slicing mining and motionless tubular column trade flow string of layer exploitation, including the sleeve pipe, at the intraductal oil pipe that is equippedwith of cover, the pump sending subassembly sets up in oil pipe, is connected with upper portion oil pipe in oil pipe's upper end, is connected with lower part oil pipe at oil pipe's lower extreme, is equipped with the packer on the external circumferential wall in lower part oil pipe middle section, and first control valve and second control valve lie in the both sides of packer respectively. When going on with well slicing mining, open the first control valve, close the second control valve for the aerial product liquid of ring that forms between sleeve pipe and the lower part oil pipe upper segment gets into to the oil pipe of lower part in, only exploits to the product liquid among the first payzone perforation section promptly, and when trading layer exploitation, need not to adjustthe position of flow strin