Method for running downhole tools and devices with coiled tubing

Details Method for running downhole tools and devices with coiled tubing Method for running downhole tools and devices with coiled tubing

1994-03-22

1995-07-25

Dang, Hoang C.

Wells

Processes

Placing or shifting well part

166 651, 166 77, 166385, E21B 1908, E21B 1922

Patent

active

054353955

ABSTRACT:
Method of conveying a downhole tool by a coiled tubing unit into a wellbore having a wellhead, and in which the downhole tool is to be communicatively linked to surface equipment by way of an electrical and/or optical cable. The method includes providing a coiled tubing unit, providing a downhole tool that is attachable to the coiled tubing directly, or indirectly attachable to the tubing by way of a provided cablehead, attaching one end of the cable to a cable connector that is in electrical and/or optical communication with the downhole tool, providing and installing a Y-connector to the wellhead of the wellhead of the well bore, the Y-connector having a branch that sealingly accommodates the coiled tubing therethrough, and a branch that sealingly accommodates the cable therethrough. The method further includes tensioning the cable as the cable and the tubing is simultaneously conveyed into and out of the well bore by way of respective branches of the Y-connector.

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