There are many different baptisms mentioned in the NT.
According to the research I have done on this subject, I find that one passage, more than any of the others, sheds the most light on this subject.
Matthew 28:19-20 KJV
(19) Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
(20) Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen.
This passage, also known as The Great Commission, was given by Jesus to His apostles, and through them, to us.
WE are to go forth, teaching everyone, and BAPTIZING them in the name of the Father, and of the Son, and of the Holy Ghost.
As far as I have been able to tell, the only way that one person can possibly baptize another person, would have to be with WATER.
And, according to those scriptural examples which contain the most detail about the baptism procedure itself, the baptisms of Jesus, Paul, the Ethiopian eunuch, etc., ALL indicate the use of WATER, and not just the sprinkling of water, but one's IMMERSION into WATER.
Correct me if I'm wrong, but Strong's tells me that 'baptise' is the Greek word for 'immerse'.
Therefore, I see the scriptures requiring one's IMMERSION into WATER as the only proper baptism. Then, the other baptisms, fire, Holy Ghost, etc., can/will take place.
I do hope, and pray, that I am wrong about this, and that water is not necessary for baptism, but being spiritually conservative, I did not risk it myself.
May God bless us all,
Pogo