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.

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.

A fishing neck for a plunger comprises a head portion, a neck portion, a lower portion, and a plurality of ribs. The head portion has a cylindrical configuration with an outer peripheral surface and an outer diameter. The neck portion also has a cylindrical configuration with an outer peripheral surface and an outer diameter, but the outer diameter is less than the outer diameter of the head portion. The neck portion extends from the head portion. The lower portion extends from the neck portion, which is opposite the head portion, and is connectable to a plunger. The lower portion has an outer diameter greater than the outer diameter of the neck portion. A plurality of ribs projects from the outer peripheral surface of the neck portion and extends helically from the head portion to the lower portion.

In some embodiments, a system including a tool drill string having a downhole device is disclosed. The downhole device includes a memory storing instructions and a downhole processor configured to execute the instructions to operate in a first transmission mode by default. The downhole processor is communicatively coupled to an uphole processor via the first transmission mode. The downhole processor is further to transmit, via a second transmission mode, a message to the uphole processor, determine whether a response is received, via the second transmission mode, from the uphole processor, and responsive to determining the response is received from the uphole processor, switch from the first transmission mode to the second transmission mode.

A system including a tool drill string having a downhole device. The system includes at least one external contact to be electrically coupled to the downhole device to communicate with the downhole device, one or more insulators that electrically insulate the at least once external contact from other parts of the system, and one or more seals situated between the one or more insulators and the at least one external contact to pressure seal the system from external fluids.

In some embodiments, a system including a tool drill string having a downhole device is disclosed. The downhole device includes a memory storing instructions and a downhole processor configured to execute the instructions to operate in a first transmission mode by default. The downhole processor is communicatively coupled to an uphole processor via the first transmission mode. The downhole processor is further to transmit, via a second transmission mode, a message to the uphole processor, determine whether a response is received, via the second transmission mode, from the uphole processor, and responsive to determining the response is received from the uphole processor, switch from the first transmission mode to the second transmission mode.

A downhole robotic fishing tool includes a main body configured to be positioned in a wellbore and an intermediate body connected to a downhole end of the main body by an upper articulating joint. A robotic hand is connected to a downhole end of the intermediate body by a lower articulating joint. The robotic hand is configurable between an open configuration and a closed configuration and includes a palm, a robotic thumb and a robotic finger attached at their respective proximal ends to the palm in opposition. When in the closed configuration, the distal ends of the thumb and finger are within a grasp center area centered on a center point defined by an intersection of a grasping axis and an opposition axis of the robotic hand. A camera is positioned on the palm that has an optical axis that intersects the grasp center area proximate the center point.

A downhole robotic fishing tool includes a main body configured to be positioned in a wellbore and an intermediate body connected to a downhole end of the main body by an upper articulating joint. A robotic hand is connected to a downhole end of the intermediate body by a lower articulating joint. The robotic hand is configurable between an open configuration and a closed configuration and includes a palm, a robotic thumb and a robotic finger attached at their respective proximal ends to the palm in opposition. When in the closed configuration, the distal ends of the thumb and finger are within a grasp center area centered on a center point defined by an intersection of a grasping axis and an opposition axis of the robotic hand. A camera is positioned on the palm that has an optical axis that intersects the grasp center area proximate the center point.

A well drilling fishing equipment alignment device that includes a base and an inner support that is connected to and that extends from that base. The inner support is configured to receive, hold, and vertically align an equipment retrieval device, typically an overshot. Also included is an outer cover that is configured to cover and protect at least a portion of the equipment retrieval device when it is connected to the inner support. The base provides a flat bottom and a handling feature. The inner support includes a preferably hollow vertical support member that includes a lower end guide support that mates with a feature of the equipment retrieval device. Beneficially the guide support includes a perimeter lip that engages a bottom edge of an equipment retrieval device guide to form a joint.

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.