What modern drilling technique allows us to tap into different pools of oil from one surface platform?

Please provide a refererence if possible?What modern drilling technique allows us to tap into different pools of oil from one surface platform?
Angular drilling. Usually drilling is straight down, but, certain rigs can use the angular drilling to drill under another companies lease...much to the annoyance of the other company, but there hasn't been any lawsuits over it yet.What modern drilling technique allows us to tap into different pools of oil from one surface platform?
Directional drilling is the only thing I know of, but it is not new.
Directional drilling technique, the technique to turn the bit to desired direction.


http://www.glossary.oilfield.slb.com/Dis鈥?/a>


http://www.oxy.com/OIL_GAS/technology/di鈥?/a>





Based on this drilling technique, people can drill horizontal wells and even multi-lateral wells.


http://www.spe.org/spe-app/spe/jpt/1999/鈥?/a>