This type of well does not have or produce any commercial deposits of hydrocarbons.

This type of well does not have or produce any commercial deposits of hydrocarbons.

• A. Gassy Well
• B. Abandoned Well
• C. Dry Hole
• D. Water Well

Answer: (C)

The main idea is identifying wells that don’t yield extractable hydrocarbons. A dry hole is a well drilled to find oil or gas but ends up with no pay zone—no commercial quantities of hydrocarbons. It may show some hydrocarbons in small amounts or non-pay zones, but there isn’t enough to justify production. That’s what makes it a dry hole: no economically viable hydrocarbons are found. This differs from a gassy well, which produces natural gas, or a water well, which targets groundwater. An abandoned well simply means it has been permanently shut in, which can happen for various reasons and isn’t defined by whether hydrocarbons were found.

The main idea is identifying wells that don’t yield extractable hydrocarbons. A dry hole is a well drilled to find oil or gas but ends up with no pay zone—no commercial quantities of hydrocarbons. It may show some hydrocarbons in small amounts or non-pay zones, but there isn’t enough to justify production. That’s what makes it a dry hole: no economically viable hydrocarbons are found.

This differs from a gassy well, which produces natural gas, or a water well, which targets groundwater. An abandoned well simply means it has been permanently shut in, which can happen for various reasons and isn’t defined by whether hydrocarbons were found.