A wellbore assembly includes a production string disposed inside a wellbore and a junk collector coupled to a downhole end of the production string. The junk collector has an upper rim defining an opening configured to receive wellbore junk. The junk collector receives wellbore junk through the upper rim at a downhole end of the production string and stores the wellbore junk.

In accordance with embodiments of the present disclosure, a debris separator device for use with a casing system may include an impeller having a plurality of blades to generate a vortex of mud in the section of the casing system when the casing system is lowered into a wellbore. The device may also include a baffle disposed in the section of the casing system, the baffle having an annular cup shape that forms an outer circumferential pocket to capture debris from the vortex of mud. The impeller and baffle may enable the debris separator device to separate debris and other debris from a flow of mud through the casing system so that the debris does not clog a float collar of the system. The disclosed debris separator device may be flushable so that the device does not become clogged with debris and can thereby maintain auto-fill through the casing system.

A collecting device for displacement in a tubing. The collecting device is extended in shape with a longitudinal axis and forms a leading portion with an entrance and an end portion. The device includes a wall extending from the leading portion to the end portion, a collecting chamber formed inside a portion of the wall, a filter positioned with the collecting chamber, a motor, a pump, and an outlet at the end portion, where the filter stocking provided with an open first end portion and a closed second end portion, and the open first end portion faces the leading portion, a and the filter stocking forms a receptacle. A method for emptying the collecting device is described.

A filter for trapping solids and methods for using the same. The filter can include at least two support members that can be oriented in a first direction, and at least two support members that can be oriented in a second direction. The second direction can be generally orthogonal to the first direction. A housing can encase and surround the support members, and can thereby form an opening therethrough. The housing can include one or more apertures providing a flow path from within the housing to outside the housing. A first end can permit fluid flow into the housing, and a second end can at least partially restrict fluid flow therethrough.

Systems and methods for collecting debris in a subterranean well include a wellbore cleanout tool having a tool housing with a tool bore. The wellbore cleanout tool further includes a power source, a wire in electrical communication with the power source, and a core member located within the tool bore. The wire is wound around the core member with a first end and a second end of the wire in electrical connection with a positive terminal and a negative terminal of the power source, respectively. A plurality of magnetic bars are spaced around the core member. A sleeve member is moveable between an uphole position where the sleeve member circumscribes the plurality of magnetic bars, and a downhole position where the sleeve member is located downhole of a portion of the plurality of magnetic bars and can be a collection basket. The wellbore cleanout tool further has a permanent magnet.

A wellbore assembly includes a production string disposed inside a wellbore and a junk collector coupled to a downhole end of the production string. The junk collector has an upper rim defining an opening configured to receive wellbore junk. The junk collector receives wellbore junk through the upper rim at a downhole end of the production string and stores the wellbore junk.

This disclosure provides a downhole debris removal apparatus, a method for operating a downhole debris removal apparatus, and a well system including the same. The downhole debris removal apparatus, in one aspect, includes an inner pipe positioned within a tubular, and a filtration member substantially encircling the inner pipe. The downhole debris removal apparatus, in this aspect, further includes a cleaning assembly positioned radially about at least a portion of the filtration member, the cleaning assembly configured to move relative to the filtration member to dislodge particulate matter from the filtration member.

A wireline clean-out tool including a first opening and a second opening at or near a free-end portion. The first opening takes in debris from a wellbore, the second opening ejects fluid into the wellbore. A housing defines a first flow path from the first opening at the free-end portion to an opposite end portion of the housing and a second flow path from the opposite end portion to the second opening at the free-end portion. The flow paths couple with each other at the opposite end portion. A collection chamber is in the first flow path for collecting debris during operation. A progressive cavity pump with hollow rotors is placed inside the housing at a predefined distance from the free-end portion being configured for operating on the first flow path while the hollow rotor forms part of the second flow path.

A wireline clean-out tool including a first opening and a second opening at or near a free-end portion. The first opening takes in debris from a wellbore, the second opening ejects fluid into the wellbore. A housing defines a first flow path from the first opening at the free-end portion to an opposite end portion of the housing and a second flow path from the opposite end portion to the second opening at the free-end portion. The flow paths couple with each other at the opposite end portion. A collection chamber is in the first flow path for collecting debris during operation. A progressive cavity pump with hollow rotors is placed inside the housing at a predefined distance from the free-end portion being configured for operating on the first flow path while the hollow rotor forms part of the second flow path.

A wellbore gauge cutter apparatus includes a sampling body defining a central recess extending from an inlet at a first end to an outlet at a second end. The apparatus further includes a gauge cutter connected to the sampling body configured to dislodge particles from an inner wall of a wellbore. The sampling body includes an inner wall defining the central recess, a hollow cylindrical divider having a central aperture, a first flow path defined in the central aperture of the hollow cylindrical divider, a second flow path defined between an outer wall of the hollow cylindrical divider and the inner wall of the sampling body, and a fluid permeable screen arranged in the first flow path or the second flow The fluid permeable screen is configured to collect a portion the particles dislodged by the gauge cutter.