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Directional drilling

Directional drilling is defined as the practice of controlling the direction and deviation of a wellbore to follow a predetermined path. Wells are drilled directionally for several purposes, such as keeping a bore hole within given boundaries or drilling to intersect underground targets or locations at a specific angle. The technology also provides means for drilling into a reservoir or ore body where vertical access is difficult or not possible, for instance under a town, a lake, or underneath difficult-to-drill topography. In more complex drilling programs several wellheads can be grouped together on one surface location to allow fewer rig moves, less environmental and surface area disturbance, and make it easier and cheaper to complete the wells.

 

Aziwell directional drilling services

Aziwell offers directional drilling services based on our new directional drill concept AZIDRILL®. The system gives continuous B-size core as it goes, providing potentially vital geological information from the formation it penetrates..

By implementing Azidrill® in your drilling program you get access to an easy and fast way to adjust bore hole paths or make multiple kick-offs without use of wedges or down hole motors. The system is fully compatible with conventional rigs, pumps and wire line equipment. No special equipment other than the drill is needed.

 

As a part of the package Aziwell provides survey, strategic planning and execution of directional drilling programs, whether its for mineral exploration or civil infrastructure projects. Our goal is to maximize your investments, reduce risk related to the drilling program, through offering highly specialized and favorable methods and solutions.

Sivil applications

 

Geological pre-investigation for tunnels or caverns

Steering of drill holes starting from surface or underground and turn it horizontal or make it follow a tunell track. Thus providing crucial information about the geology along the planed route of the tunnel, Information that can be used for pre-planning of later operations and qualify your overall budget. The hole can later be used for water testing, seismic or cemented to act as guide for tunnel machines. All highly valuable for pre-construction planning.

Producing accurate holes for freeze curtains

Drilling of freeze curtains in tunnel or cavern projects, where each hole need to be within certain limits to each other to ensure that the curtain can solidify the formation properly.

Controlled slope drilling for sewage and water tunnels

Drilling of bore holes for sewage or water tunnels that need a to follow a specific path or slope to ensure positive gravity flow of water thought the tunnel, If needed the hole can be used as pilot hole for later raise boring. 

 

River-crossing applications

Placing pipelines that cross beneath rivers to install fiber-optic cables, power lines or other infrastructure.

Mineral exploration

Straight drilling

Correction of drifting bore holes in highly deviated formations without wedging that would leave steel in the hole or motors needing special rods or pumps on site..

Horizontal drilling

Steering of drill holes starting from surface or underground and turn it horizontal or to a specific inclination to intersect the ore body at a specific angle or reach a targets that otherwise would be inaccessible due to surface topography. 

Multiple Kick-Offs

Performing multiple Kick-Offs from a single master hole to reduce the cost of transport drilling as well as coring and casings in the overlaying formations. With pre-planning number of branches can reach 30 or more, thus the saving potential is considerable, both money wise and for minimizing nature impact.

Pilot holes for raise bore and utility holes

Drilling of pilot holes for later raise boring or hole opening to speed up penetration rates for other types of drilling, in order too intersect underground tunnels or caverns..