Horizontal directional drilling procedures

#Horizontal directional drilling procedures series#

Even the branches of the roots are comparable to multilateral drilling. If we imagine the rig as the trunk of the tree, the directional possibilities of the roots are endless. Students of petroleum engineering often get shown illustrations and diagrams that look like tree roots. ItвЂ™s possible for ERD specialists to drill for more than 10 kilometers/6.2 miles. Techniques such as multilateral, horizontal and extended reach drilling (ERD) are enhanced oil recovery (EOR) methods that can increase the yield of a downhole dramatically.

Over the past few decades, technological improvements have meant that angles, turns and underground distances covered are amazing feats of engineering.

#Horizontal directional drilling procedures series#

Nowadays, however, itвЂ™s more likely that thereвЂ™ll be a series of one or more carefully planned directional changes along the wellbore.Дirectional drilling techniques have been employed for almost 100 years now. If a driller aims away from the 180-degrees down, thatвЂ™s technically directional drilling. In conventional drilling for oil and gas, the drill bit, drillstring, pipe and casing all go down in a straight line. In this instance, the driller uses sidetracking techniques. In fact, even in a vertical well, it might be necessary to deviate to avoid a geological formation or a previous stuck pipe, then return to the original path. Directional drilling is a broad term used to describe any boring that doesnвЂ™t go in a straight line vertically down.