Calogeron works with all our technical partners or teams to provide full API RP 4G derrick inspections in line with API recommended practice. API recommended practice 4G has established four categories for drilling and well servicing structure inspections and sets forth personnel qualifications for these inspections. Masts and derricks support enormous loads when drilling and running casing.

API-recommended practice for mast and derrick inspections is a critical element to avoiding potentially non- productive time or even serious incidents and catastrophic events during drilling operations or following rig reactivation. We provide 4 categories of inspections with qualifications, experiences and certifications appropriate to each category.