Based on an overview map of subsurface drilling point can be determined to prove the existence of oil and gas in the basin. After determining the point of drilling and mapping the location and then do the drilling. The division of oil and gas drilling are distinguished by:
– Interest drilling
– Location drilling
– Based on the shape of the hole
Figure 3.1. Drilling Location Map
This type of drilling is based on the objectives to be achieved in performing drilling operations. Based on the purpose of drilling divided into:
– Exploration Drilling
– Delineation Drilling
– Drilling Exploitation
Based Drilling Locations
This drilling is based on the type of location where drilling is performed. Based on the location of point location, the drilling can be divided into:
- drilling land (Onshore)
- Offshore drilling (Offshore)
Onshore drilling is all drilling activities located at the point of the mainland. Another term is the Onshore Drilling. Offshore drilling is drilling activities located at the point of the offshore deep water samapai. But can be included as well for offshore drilling location is at the point when an aqueous environment, such as drilling in the river, in the marshes and on the lake but with certain added Governing Terms.
Another term for offshore drilling is an Offshore Drilling. Overview of onshore and offshore drilling can be seen in Figure 3.5.
Figure 3.5. Onshore and Offshore Drilling