Environmental Engineering Reference
In-Depth Information
2
Cased-Hole Logging Environment
Planning a Production Logging Job
Planning is an important part of a production logging job. Frequently these jobs can
only be done in safety during daylight. Thus, the correct type of equipment must be
available for the expected well conditions. Before attempting any production
logging job the following checklist should be consulted:
1. Full well-completion details
2. Full production history
3. All open-hole logs
4. PVT data
Lack of any part of this data will result in delays that may jeopardize the
entire job.
Pressure-Control Equipment
Practical details should not be forgotten. In particular, considerable care and atten-
tion should be given to the matter of working on a well that has pressure at the
wellhead. It is a good idea to plan well in advance with the logging-service company
using the following checklist:
1. Wellhead connection
2. Riser requirements
3. Tubing restrictions (minimum ID)
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