Handling and recovery devices for tubular members and associated methods

Patent metadata

Field	Value
Publication number	US-10119344-B2
Application number	US-201615379016-A
Country	US
Kind code	B2
Filing date	Dec 14, 2016
Priority date	Dec 31, 2013
Publication date	Nov 6, 2018
Grant date	Nov 6, 2018

Abstract

Implementations described herein include a hoisting device and method for handling, coupling and recovery of tubular members such as drill string components. The hoisting device has a self-energizing gripping means configured to releasably engage a drill string component. In one aspect, the self-energizing gripping means can be operable to increase at least one of a radial biasing force and a contact friction force applied to a drill string component, causing the gripping means to increase the overall gripping force applied to the component with minimal effort exerted by a hoisting device operator.

First claim

What is claimed is:

1. A method, comprising:
using a device comprising:
a roller gripper housing having a longitudinal axis:
a cage member having a plurality of roller gripper element openings disposed therein;
a base member having an exterior surface and an elongate length extending between a proximal and a distal end, wherein at least a portion of the exterior surface defines at least one wedge surface that tapers inwardly as the wedge surface moves toward the proximal end of the base member; and
at least one polar array of roller gripper elements disposed in cooperative communication with the plurality of roller gripper element openings and at least a portion of the at least one wedge surface;

inserting the device into a drill string component to urge the plurality of roller gripper elements radially inward;
following insertion of the device to a selected axial location along a length of the drill string component, retracting the device to urge the plurality of roller gripper elements radially outward to couple the device to an inner surface of the drill string component.

2. The method of claim 1 , wherein the device is secured to a second drill string component using a threaded collar.

3. The method of claim 1 , wherein the device is retracted from the drill string component using a hoisting cable eye, wherein the device further comprises at least one radial bearing disposed between the hoisting cable eye and the roller gripper housing, wherein the at least one radial bearing is operable to allow rotation about the longitudinal axis of the roller gripper housing.

4. The method of claim 1 , wherein the device is retracted using a hoisting cable eye, wherein the device further comprises at least one thrust bearing, and wherein the method further comprises:
engaging a drill string with the roller gripper housing; and
using the at least one thrust bearing to transfer tension between a hoist cable associated with the hoisting cable eye and the drill string engaged by the roller gripper housing.

5. The method of claim 1 , wherein the device defines a central bore and further comprises a connection port operably connected to the central bore, wherein the method further comprises:
allowing fluid to pass through the central bore of the device; and
using the connection port to facilitate at least one of water supply and fluid venting.

6. The method of claim 5 , wherein the roller gripper housing further comprises at least one fluid seal that is disposed against the inner surface of the drill string component.

7. The method of claim 1 , wherein the device further comprises a biasing member that maintains the at least one polar array of roller gripper elements at an axial position corresponding to a maximum radial displacement along the at least one wedge surface of the base member relative to a central axis of the base member when the device is in an unloaded state.

8. The method of claim 1 , wherein a distance between opposing roller gripper elements in the at least one polar array of roller gripper elements is greater than an inner diameter of the drill string component when the device is in the unloaded state prior to insertion within the drill string component.

9. The method of claim 1 , wherein the device is retracted using a handle secured to the device.

10. The method of claim 1 , wherein the device is manually inserted and retracted from the drill string component.

11. The method of claim 1 , wherein the drill string component is a lost drill string component within a drill hole.

Assignees

• Longyear Tm Inc

Inventors

• Drenth Christopher L
• Hogan Jeff
• Lachance Anthony

Classifications

• B66C1/56

  for handling tubes · CPC title

• E21B31/12

  Grappling tools, e.g. tongs or grabs · CPC title

• B66C1/44

  and applying frictional forces · CPC title

• E21B21/02

  Swivel joints in hose-lines · CPC title

• E21B19/06 Primary

  Elevators, i.e. rod- or tube-gripping devices · CPC title