Discovery process consists of a number of exploratory phases. The overall goal is to increase the chances of discovering valuable storage with minimal cost. Each phase has its own specific purpose and needs. These needs include:

1-     The methods used and the ratio of cost to profit in any way desired phase.

2-     Decided to continue working on the next phase or skipped.

Phases of a modern exploration program include:

1-     Reconnaissance

2-     Prospect

3-     General-Preliminary

4-     General- Semi detailed

5-     Detailed

During the operations phase, selection process and elimination for determination of high or low potential areas. At the end of each phase, the remaining areas will be studied in the next phase. At the end of detailed investigation phase, preparation process is done.

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