Deployment/retrieval method and apparatus for well tools used with coiled tubing
This patent describes a method of inserting a well service tool into a wellbore having a wellbore axis, the well service tool having a central bore and a valve within the bore. It comprises: inserting the well service tool into a lubricator having a closed first end portion with a control cable extending therethrough and connected to the well service tool and a second open end portion incorporating means for connecting the lubricator to a wellhead; axially aligning the well service tool and the lubricator along the axis and connecting the lubricator to the wellhead; inserting at least a portion of the well service tool into the wellbore so that a portion of the tool is adjacent at least one pair of pipe rams in the wellhead; closing the pipe rams against an outer surface of the well service tool to hold the well service tool in position and effect a fluid-tight seal against the tool within the wellbore, and removing the lubricator from the wellhead and disconnecting the control cable from the well service tool.
- Assignee:
- Dowell Schlumberger Inc., Tulsa, OK (USA)
- Patent Number(s):
- US 4940095; A
- Application Number:
- PPN: US s 7-303592
- OSTI ID:
- 6557994
- Resource Relation:
- Patent File Date: 27 Jan 1989
- Country of Publication:
- United States
- Language:
- English
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