Derrick Inspections

Derrick Inspections Cat III / Cat IV Inspections OCS Engineers are extremely experienced in providing structural API RP 4G Category III or Category IV inspections as required. Our inspectors have had global experience in inspecting and designing drilling structures. The CAT inspections depending on location are typically conducted in two phases. An initial inspection where the corrective actions are documented and provided to the client. On completion OCS provide a final inspection where a certificate is then provided for client records. For other engineering services provided please see other suggested services below to direct you to the engineering page.