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Brake for Telescoping Space-out Joint

IP.com Disclosure Number: IPCOM000237842D
Publication Date: 2014-Jul-16
Document File: 5 page(s) / 472K

Publishing Venue

The IP.com Prior Art Database

Abstract

The Brake will selectively restrict axial movement within a telescoping space-out joint (TSOJ). In subsea well completions, the production tubing string may include a telescoping space-out joint to enable attachment of the lower end of the tubing to existing completion equipment in the well while maintaining the tubing hanger in a position above the BOP. After the attachment is complete, the telescoping space out joint is collapsed to allow the tubing hanger to be lowered through the BOP and landed/latched into the tree or wellhead. If the completion includes equipment that is operated by the above described attachment, and conversely operated by a subsequent detachment, the following sequence may occur. During work-over operations, the production tubing string is pulled from the well. In the completion described above, the tubing hanger is released from the tree or well head and the tubing is picked up until the telescoping space-out joint is extended back to its run-in configuration. At this point continued pick up on the tubing string will operate the equipment as discussed here. If safety or other reasons require the equipment operation during detachment to occur simultaneously with the release of the tubing hanger it is necessary to eliminate the process of the extension of the telescoping space-out joint back to its run-in configuration. This process can be eliminated by the engagement of the Brake preventing axial movement within the telescoping space-out joint. The brake can be operated from the surface by hydraulics or other means. Example of the Brake for a Telescoping Space-out Joint (TSOJ) Closure of a Barrier Valve using the Brake In this case a Barrier Valve is being used to automatically isolate the reservoir at the beginning of a well work over as the production tubing is pulled out of the hole. The solution present here includes modifications to the Telescoping Space-out Joint (TSOJ) to allow two operational modes: 1) Normal Telescoping Movement 2) No Telescoping Movement

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Brake for Telescoping Space-out Joint

The Brake will selectively restrict axial movement within a telescoping space-out joint

(TSOJ).  In subsea well completions, the production tubing string may include a telescoping

space-out joint to enable attachment of the lower end of the tubing to existing completion

equipment in the well while maintaining the tubing hanger in a position above the BOP.

After the attachment is complete, the telescoping space out joint is collapsed to allow the

tubing hanger to be lowered through the BOP and landed/latched into the tree or wellhead.

If the completion includes equipment that is operated by the above described attachment,

and conversely operated by a subsequent detachment, the following sequence may occur.

During work-over operations, the production tubing string is pulled from the well.  In the

completion described above, the tubing hanger is released from the tree or well head and

the tubing is picked up until the telescoping space-out joint is extended back to its run-in

configuration.  At this point continued pick up on the tubing string will operate the

equipment as discussed here.  If safety or other reasons require the equipment operation

during detachment to occur simultaneously with the release of the tubing hanger it is

necessary to eliminate the process of the extension of the telescoping space-out joint back

to its run-in configuration.  This process can be eliminated by the engagement of the Brake

preventing axial moveme...