Hello, 

According to me petroleum engineering has a good scope 

Petroleum engineers typically do the following:

Design equipment to extract oil and gas from onshore and offshore reserves deep underground.

Develop plans to drill in oil and gas fields, and then to recover the oil and gas.

Develop ways to inject water, chemicals, gases, or steam into an oil reserve to force out more oil or gas.

Make sure that oilfield equipment is installed, operated, and maintained properly.

If you have interest in doing or learning it then go for it it definitely has a good scope. 

Evaluate the production of wells through surveys, testing, and analysis.