I. JENIS – JENIS LUMPUR PEMBORAN
ZABA dan DOHERTY (1970) mengklasifikasikan lumpur bor terutama berdasarkan fasa fluidanya : air (water base), minyak (oil base) atau gas, sebagai berikut :
I. Fresh Water Muds (lumpur air tawar)
a. Spud
b. Natural atau Native (alamiah)
c. Bentonite – treated
d. Phospate – treated
e. Organic coloid – treated
f. “Red” atau alkaline – tannate treated
g. Calcium muds
1. Lime – treated
2. Gypsum – treated
3. Calcium – (selain 1 & 2) - treated
II. Salt Water Muds (air asin)
a. Unsaturated salt water
b. Saturated salt water
c. Sodium silicate
III. Oil in Water Emulsion
a. Fresh Water (air tawar)
b. Salt Water (air asin)
IV. Oil Base dan Oil Base Emulsion Muds
V. Gaseous Drilling Fluids
a. Udara atau Natural gas
b. Aerated Muds