Zion Oil & Gas Inc (ZNOG)

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How Does Formation Testing Work?

https://www.rigzone.com/training/insight.asp?insight_id=318&c_id=1


Important factors in determining the success of the drill stem test and, in turn, the well, include the depth of the tool; duration of the test; time required for hydrocarbons to reach the surface; fluids recovered in the drill pipe; initial and final flow pressures, indicating the increase in flowing capacity of the well; and the shut-in bottom hole pressure, which signifies the maximum reservoir potential

Packer Systems
https://www.slb.com/services/completions/packers.aspx

Perforation (oil well)
https://en.wikipedia.org/wiki/Perforation_(oil_well)
Perforating Gun Systems and Charges
https://www.slb.com/services/completions/perforating/gun_systems.aspx
perforating charge
https://www.glossary.oilfield.slb.com/Terms/p/perforating_charge.aspx

perforating gun