Drilling Companies’ Classification System & Drilling Methods Used
WATER WELL SERVICES
DIAGRAM OF WATER WELL
NEED FOR WATER WELL REQUIREMENTS
WATER WELL PRINCIPLES
REQUIREMENTS & RESPONSIBILITIES
BORE DESIGN & TYPES
CLASSIFICATION SYSTEM & DRILLING METHODS
SITING A WATER SUPPLY BORE
Good Industry Practice
Drillers should use drilling methods
and techniques suited to the expected hydrogeological conditions.
Drillers should not contract for or attempt works
that could be reasonably expected to exceed the capabilities
and limitations of the drill plant to be used.
Drillers should maintain the optimal up-hole velocity
throughout the drilling of the bore
(see Table Recommended (optimum) up-hole velocities (UHV).