Test drilling and boring (PKD 43.13.Z)

• test drilling and boreholes intended to investigate soil mechanics for construction, geophysical, geological or similar purposes.

• production drilling for oil or natural gas, classified in 06.10.Z and 06.20.Z,
• exploratory drilling related to oil or gas extraction, classified in 09.10.Z,
• test drilling and ancillary drilling support activities (for example in mining), classified in 09.90.Z,
• drilling of wells and water intakes, classified in 42.21.Z,
• geothermal drilling, classified in 42.21.Z,
• sinking of shafts, classified in 43.50.Z,
• search for oil and gas deposits (without extraction), including the carrying out of geophysical, geological and seismic surveys, classified in 71.12.B.

This group includes the performance of installations that support the functioning of a building, including installations of electrical, gas, water and sewerage systems, heating and air-conditioning systems, lifts and the like.