Low stress rope socket for downhole tool

Patent metadata

Field	Value
Publication number	US-2017204679-A1
Application number	US-201415327402-A
Country	US
Kind code	A1
Filing date	Aug 20, 2014
Priority date	Aug 20, 2014
Publication date	Jul 20, 2017
Grant date	—

Abstract

In accordance with some embodiments of the present disclosure, a low stress rope socket for a downhole tool is disclosed. The rope socket includes a core, a groove cut in a helix shape on the core, and a rope wrapped around the core and inserted in the groove. The slickline attachment affixed to an uphole end of the core to attach the rope to the core. Additionally, the rope socket includes a housing surrounding the rope and the core. The housing secures the rope to the groove. The rope socket further includes a transition affixed to a downhole end of the core. The transition aligns the rope with an axis of symmetry of the socket. A portion of the rope downhole from the rope socket carries no load.

First claim

What is claimed is:

1 . A low stress rope socket comprising:
a core; a groove cut in a helix shape on the core; a rope wrapped around the core and inserted in the groove; a slickline attachment affixed to an uphole end of the core to attach the rope to the core; a housing surrounding the rope and the core, the housing securing the rope to the groove; and a transition affixed to a downhole end of the core, the transition aligning the rope with an axis of symmetry of the socket, wherein a portion of the rope downhole from the transition carries no load.

2 . The socket of claim 1 , wherein the housing is a cured resin.

3 . The socket of claim 1 , wherein the housing is a sleeve.

4 . The socket of claim 1 , wherein the rope is a compound rope.

5 . The socket of claim 1 , wherein the rope is a single strand rope.

6 . The socket of claim 1 , further comprising:
a shoulder affixed to an end of the core, wherein the shoulder supports a downhole tool.

7 . The socket of claim 1 , wherein the pitch of the groove is even from an end of the core to another end of the core.

8 . The socket of claim 1 , wherein the pitch of the groove is uneven from an end of the core to another end of the core.

9 . The socket of claim 1 , wherein the core is tapered.

10 . A low stress rope socket comprising:
a core; a groove cut in a helix shape on the core; a rope wrapped around the core and inserted in the groove; a transition affixed to a downhole end of the core, the transition aligning the rope with an axis of symmetry of the socket; and a cured resin coating the core and the rope, wherein a portion of the rope downhole from the transition carries no load.

11 . The socket of claim 10 , wherein the rope is a compound rope.

12 . The socket of claim 10 , wherein the rope is a single strand rope.

13 . The socket of claim 10 , further comprising:
a shoulder affixed to an end of the core, wherein the shoulder supports a downhole tool.

14 . The socket of claim 10 , wherein the pitch of the groove is even from an end of the core to another end of the core.

15 . The socket of claim 10 , wherein the pitch of the groove is uneven from an end of the core to another end of the core.

16 . The socket of claim 10 , wherein the core is tapered.

17 . A low stress rope socket comprising:
a core; a groove cut in a helix shape on the core; a rope wrapped around the core and inserted in the groove; a transition affixed to a downhole end of the core, the transition aligning the rope with an axis of symmetry of the socket; and a sleeve surrounding the rope and the core, the sleeve compressing the rope into the groove, wherein a portion of the rope downhole from the transition carries no load.

18 . The socket of claim 17 , wherein the rope is a compound rope.

19 . The socket of claim 17 , wherein the rope is a single strand rope.

20 . The socket of claim 17 , further comprising:
a shoulder affixed to an end of the core, wherein the shoulder supports a downhole tool.

21 . The socket of claim 17 , wherein the pitch of the groove is even from an end of the core to another end of the core.

22 . The socket of claim 17 , wherein the pitch of the groove is uneven from an end of the core to another end of the core.

23 . The socket of claim 17 , wherein the core is tapered.

Assignees

• Halliburton Energy Services Inc

Inventors

• Kartha Nikhil Manmadhan
• Holly Mark S

Classifications

• E21B47/01

  Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like · CPC title

• E21B17/023 Primary

  Arrangements for connecting cables or wirelines to downhole devices · CPC title

• E21B17/1035

  for plural rods, pipes or lines, e.g. for control lines · CPC title