Wellbore recovery operation

Details Wellbore recovery operation Wellbore recovery operation

2006-08-29

2006-08-29

Bagnell, David (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S117600, C175S057000, C175S320000

Reexamination Certificate

active

07096962

ABSTRACT:
The present invention relates to methods and equipment for recovering use of a well-bore in circumstances where the well bore has become blocked by downhole equipment. The invention provides a method comprising the steps of separating, at a release joint, a portion of equipment from a jammed portion (6) of equipment; running the separated portion of equipment uphole out of the wellbore (100); running a deflector assembly (60) downhole into the wellbore (100); and deflecting a milling tool (64) from the wellbore into surrounding formation. The method is characterised by restricting relative movement between the deflector assembly (60) and the wellbore (100) by engaging, prior to deflecting the milling tool (64), the deflector assembly (60) with said jammed portion (6) of equipment.

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patent: 6092601 (2000-07-01), Gano et al.
patent: 6186249 (2001-02-01), Bjornstad

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