See “environmental air drilling”
A pneumatic device that uses compressed air to drill through various ground conditions.
Continuous water sampling conducted on the water body being crossed to identify baseline readings and to react to any changes to water quality.
Actual path the drill bit follows.
See “pre-bore profiling”
The department of the Canadian government that is responsible for overseeing all policies, programs, and guidelines regarding Canada’s economic, ecological and scientific interests in oceans and inland waters.
Using compressed air to create a pilot bore.
A bore hole rupture that allows drilling mud to escape into water bodies or pool onto the surface.
See “horizontal directional drilling”
The process of drilling horizontally underground to avoid man-made and natural surface obstacles.
The use of high volume drilling fluid to power a turbine that allows for the drilling in hard formations.
The area in which the drill path has to avoid to maintain a safe distance from the water body being crossed.
The initial bore drilled along the drill path.
A compilation of all information gathered which provides the best possible path given the project constraints.
The speed in feet per minute at which the drilling tool is cutting the borehole.
The ground conditions (such as clay, muskeg, and sand) which allow for conventional drilling with a spade bit.
Construction methods which do not involve open trenching for the installation of pipelines.