A brake device for engaging an inner surface of a drill string within a borehole. The brake device has a driving member that defines a plurality of wedge surfaces, a brake retainer that receives at least a portion of the driving member, and a plurality of braking elements positioned in contact with at least a portion of the outer surface of the driving member. The brake retainer has a biasing member that is operatively coupled to the driving member. The biasing member of the brake retainer biases the driving member in a proximal direction relative to the longitudinal axis of the drill string to position the wedge surfaces in contact with corresponding braking elements, and the wedge surfaces drive the braking elements radially outwardly to engage the inner surface of the drill string. The brake device is not coupled to an inner tube assembly.

A security device placed at a wellhead over a blowout preventer valve, which can be activated to catch a cable and/or a string of pipes upon a cut event or accident, preventing the fall of the same into the well, which includes: an upper horizontal plate and lower horizontal plate, vertically aligned, each having a circular central orifice for the passing of a string of pipes and/or a cable, and a cutout on the front part thereof, located between its front edge and the circular orifice; lateral support device, located between the upper and lower plates, that connect the plates together, delimiting an aperture at the front part of the device that together with the cutouts on the upper and lower plates form a front passage toward the inside of the device; at least two clamps driven by corresponding hydraulic cylinders, which are arranged at an acute angle with the vertical axis of the device; and a movable vertical plate arranged on the front part of the device between the lateral support means, pivotally connected by one of its sides to the upper and lower plates. The movable vertical plate, in a first position, allows for the horizontal passing of a string of pipes and/or cables through the front passage to a location at the center of the device, and in a second position, the movable vertical plate blocks the front passage. In a first position the clamps allow for vertical movement of the string of pipes and or cables and in a second position the clamps block the movement of the same.

Provided is an internal slip, a sealing/anchoring subassembly, a well system, and method. The internal slip, in one aspect, includes a tubular, the tubular having a tubular inner diameter (ID.sub.t) and a tubular outer diameter (OD.sub.t). The internal slip, in this aspect, further includes a first set of teeth disposed along the tubular inner diameter (ID.sub.t), the first set of teeth configured to engage with base teeth disposed on a base outer diameter (OD.sub.B) of a base positioned radially inside of the tubular. The internal slip, in this aspect, further includes a second set of teeth disposed along the tubular outer diameter (OD.sub.t), the second set of teeth configured to engage with stroke sleeve teeth disposed on a stroke sleeve outer diameter (OD.sub.SS) of a stroke sleeve positioned radially outside of the tubular, wherein one or more of the second set of teeth are generally symmetrical about a centerline thereof.

A method for installing an electrical submersible pump (ESP) in a well containing a production conduit includes securing an ESP to a lower end of a coiled tubing segment containing an electrical power cable. An operator secures a load transfer device with a gripping member to the coiled tubing segment above the ESP. The operator lowers the coiled tubing segment into the well along with the ESP and the load transfer device. The load transfer device contacts an interior side wall of the production conduit with the gripping member and transfers a load on the coiled tubing segment to the production conduit. When powered, the ESP causes well fluid to flow upward from the ESP through the load transfer device up the production conduit.

A catching tool assembly, and method of use, for catching an electric submersible pump string or other equipment string in a well bore in the event of a tubing failure. The catching tool is self-orienting so that the tool can be set and retrieved by simply moving the mandrel of the tool up and down, without any need to rotate the equipment string or the mandrel.

A submersible downhole pump (1) includes an elongate pump unit (3) defining a longitudinal pump axis (L) and a pump unit diameter (D), and at least one cable lug (13) for attaching a cable. The at least one cable lug (13) is connected to the pump unit (3) and pivotable around a pivot axis (P) perpendicular to the longitudinal axis (L) between a defined first position and a defined second position. The at least one cable lug (13) is positioned, in the first position, fully within the pump unit diameter (D). In the second position, the at least one cable lug (13) is positioned at least partially protruding outside the pump unit diameter (D).

A brake device for engaging an inner surface of a drill string within a borehole. The brake device has a driving member that defines a plurality of wedge surfaces, a brake retainer that receives at least a portion of the driving member, and a plurality of braking elements positioned in contact with at least a portion of the outer surface of the driving member. The brake retainer has a biasing member that is operatively coupled to the driving member. The biasing member of the brake retainer biases the driving member in a proximal direction relative to the longitudinal axis of the drill string to position the wedge surfaces in contact with corresponding braking elements, and the wedge surfaces drive the braking elements radially outwardly to engage the inner surface of the drill string. The brake device is not coupled to an inner tube assembly.

A brake device for engaging an inner surface of a drill string within a borehole. The brake device has a driving member that defines a plurality of wedge surfaces, a brake retainer that receives at least a portion of the driving member, and a plurality of braking elements positioned in contact with at least a portion of the outer surface of the driving member. The brake retainer has a biasing member that is operatively coupled to the driving member. The biasing member of the brake retainer biases the driving member in a proximal direction relative to the longitudinal axis of the drill string to position the wedge surfaces in contact with corresponding braking elements, and the wedge surfaces drive the braking elements radially outwardly to engage the inner surface of the drill string. The brake device is not coupled to an inner tube assembly.

A tubing anchoring tool connectable to a tubing string and positionable within a well conduit is provided, for preventing movement of a tubing string. The tool comprises one or more axial grooves formed along the length of an outer surface thereof, for accommodating cables placed therein.

A gripper assembly for gripping coiled tubing with lower and upper ball carriers. A first gripper portion and a second gripper portion each have a channel for a bore through the gripper portions. Gripper portions can rotate in relation to each other. Rotation causes the gripper portion to close around an object that passes through the bore. With a translational force, the gripper portions rotate relative to each other to grasp an object.