HD provides services in the field of drilling and maintenance for the extraction of hydrocarbons, endogenous forces and water, in addition to related services such as:

• Activities which include a simultaneous interaction between drilling and production both onshore and offshore;
• Electrical and instrumental upgrading of work sites (offshore platforms, single-well sites and clusters) for the preparation of the drilling/workover activity;
• Restoration of the electrical and instrumental systems in rig sites after the revamping of the wells;
• Running of the production process during drilling/workover activities on wells;
• Supply of equipment, materials and specialized staff.