公开(公告)号：US10738554B2

公开(公告)日：2020-08-11

申请号：US16003963

申请日：2018-06-08

申请人： Saudi Arabian Oil Company

发明人： Ali Radi Alssafwany

IPC分类号： E21B31/00 ,  E21B31/06 ,  E21B31/18 ,  E21B31/20

摘要： A fishing tool used for fishing a metal object from a subterranean well has a housing. The housing is an elongated member having an internal bore. A first electromagnetic assembly is located within the internal bore of the housing and a second electromagnetic assembly is located at an outer diameter surface of the housing. The second electromagnetic assembly moves between a contracted position and an extended position. The second electromagnetic assembly extends outward from the housing. The first electromagnetic assembly generates a first magnetic force with an adjustable magnitude. The second electromagnetic assembly generates a second magnetic force with an adjustable magnitude. The first magnetic force and the second magnetic force have the same magnetic polarity.

公开(公告)号：US20190376357A1

公开(公告)日：2019-12-12

申请号：US16003963

申请日：2018-06-08

申请人： Saudi Arabian Oil Company

发明人： Ali Radi Alssafwany

IPC分类号： E21B31/06

摘要： Systems and methods for fishing a metal object from a subterranean well include a fishing tool with housing, the housing being an elongated member having an internal bore. A first electromagnetic assembly is located within the internal bore of the housing and a second electromagnetic assembly is located at an outer diameter surface of the housing, the second electromagnetic assembly being moveable between a contracted position and an extended position where the second electromagnetic assembly extends outward from the housing. The first electromagnetic assembly is operable to generate a first magnetic force with an adjustable magnitude. The second electromagnetic assembly is operable to generate a second magnetic force with an adjustable magnitude, the first magnetic force and the second magnetic force having a same magnetic polarity.

公开(公告)号：US10934797B2

公开(公告)日：2021-03-02

申请号：US16663793

申请日：2019-10-25

申请人： Saudi Arabian Oil Company

发明人： Ali Radi Alssafwany

IPC分类号： E21B31/06 ,  E21B31/00 ,  E21B31/18 ,  E21B31/20

摘要： Systems and methods for fishing a metal object from a subterranean well include a fishing tool with housing, the housing being an elongated member having an internal bore. A first electromagnetic assembly is located within the internal bore of the housing and a second electromagnetic assembly is located at an outer diameter surface of the housing, the second electromagnetic assembly being moveable between a contracted position and an extended position where the second electromagnetic assembly extends outward from the housing. The first electromagnetic assembly is operable to generate a first magnetic force with an adjustable magnitude. The second electromagnetic assembly is operable to generate a second magnetic force with an adjustable magnitude, the first magnetic force and the second magnetic force having a same magnetic polarity.