WITSML- Catalog of Value Constrainted Types. The type of personnel grouping. A count that is the number of persons from the catering contractor spending the night at the installation. A count that is the number of persons from other than operator spending the night at the installation. A count that is the number of persons visiting the installation but not spending the night at the installation. A count that is the number of persons from the drilling contractor spending the night at the installation. A count that is the number of persons from the operator normally working on the installation and spending the night there. A count that is the number of persons from the operator normally not working on the installation, but spending the night there. A count that is the number of persons from an unknown source normally not working on the installation, but spending the night there. A count of the total personnel on board. The type of operation for which general comments can be defined. Production operations. Well operations. Deviations from existing procedures and guidelines. Maintenance work. Construction work. Failure of a power station. Air traffic in the area. Other comment relevant for the production periods on the installation. Reason for lost production. Estimated loss of production due to equipment failure and maintenance topside. Estimated loss of production due to extended maintenance turnaround. Estimated loss of production due to extended maintenance turnaround on export terminal. Estimated loss of production due to preventive maintenance topside. Estimated loss of production due to planned maintenance turnaround. Estimated loss of oil production due to lost export due to marked product. Estimated loss of gas production due to lost export due to marked product. Estimated loss of production due to modification projects. Estimated loss of production due to operation mistakes reference. Estimated loss of production due to unspecified reasons. Estimated loss of production due to process and operation problems. Estimated loss of production due to total loss of production. Estimated loss of production due to regulatory reference. Estimated loss of production due to reservoir losses. Estimated loss of production due to well testing and logging. Estimated loss of production due to unavailable tanker storage. Estimated loss of production due to well equipment failure and maintenance. Estimated loss of production due to planned well operations. Estimated loss of production due to preventive maintenance on a well. Estimated loss of production due to weather conditions. Estimated loss of production due to Safety or Emergency requirements. Estimated loss of production due to strike or lock-out. Estimated loss of production due to 3rd party processing. Estimated total loss of production. Estimated loss of production due well problems. The type of safety issues for which a count can be defined. An incident resulted in an injured employee who required medical treatment and could not return to work the next day. An accident resulting in lost time from work . A type of accident that may challenge safety systems at a level much higher than expected.. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. An incident which, under different circumstances, could have caused injury, illness and/or major damage to/loss of assets, or harm to the environment or to a third party. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. Safe Job Analysis. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx. xxxxxxxxxxxxxxx.