These wells are.
Salt water disposal well.
Or an improved sinkhole.
Or a dug hole whose depth is greater than the largest surface dimension.
Saltwater disposal well construction.
Or a subsurface fluid distribution system.
The fluid may be water wastewater brine salt water or water mixed with chemicals.
The handling of the saltwater or produced water which brings the oil and gas up to the surface can be done in different ways.
The following animated video presentation is an example of a class ii saltwater disposal well.
What are salt water disposal wells.
Please note that saltwater well information may vary by region local regulations and geology.
The environmental protection agency epa describes a saltwater disposal well as a bored drilled or driven shaft whose depth is greater than the largest surface dimension.
What are saltwater disposal wells.
Saltwater disposal is a technique used for the disposal of saltwater and brine which are produced along with the crude oil and natural gas during the production process.
In contrast wells that supply fresh water can vary in depth throughout the state but generally range from no deeper than a few hundred to a thousand feet.
Disposal wells inject saltwater into underground formations often over a mile in depth into sub surface zones that already contain naturally occurring saltwater.