Horizontal Drilling

Horizontal oil and gas drilling has become one of the most valuable technologies ever introduced in the business. It is an enhanced oil recovery (EOR) or gas recovery method that is becoming more and more popular as the price per barrel of oil gets higher.
Unlike a directional well that is drilled to position a reservoir entry point, a horizontal well is commonly defined as any well in which the lower part of the well bore parallels the oil zone. The angle of inclination used to drill the well does not have to reach 90° for the well to be considered a horizontal well. Applications for horizontal wells include the exploitation of thin oil-rim reservoirs, avoidance of drawdown-related problems such as water/gas coning, and extension of wells by means of multiple drain holes.

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