The horizontal projection
On many well plans, horizontal projection is just a straight line drawn from
the slot to the target. On multi-well platforms however, it is sometimes
necessary to start the well in a different direction to avoid other wells. Once
clear of these, the well is turned to aim at the target. This is a 3-dimensional
turn, but on the horizontal plan it would typically look like Figure 5-18.
The path of the drilled well is plotted on the horizontal projection by
plotting total North/South coordinates (Northings) versus total East/West
coordinates (Eastings). These coordinates are calculated from surveys.
On many well plans, horizontal projection is just a straight line drawn from
the slot to the target. On multi-well platforms however, it is sometimes
necessary to start the well in a different direction to avoid other wells. Once
clear of these, the well is turned to aim at the target. This is a 3-dimensional
turn, but on the horizontal plan it would typically look like Figure 5-18.
The path of the drilled well is plotted on the horizontal projection by
plotting total North/South coordinates (Northings) versus total East/West
coordinates (Eastings). These coordinates are calculated from surveys.
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