SimilarityRank
fracking 0.862 21463
drilling 0.825 8037
hydraulic 0.774 13689
shale 0.766 17984
drillers 0.720 78745
Shale 0.706 29866
oilsands 0.703 96475
Fracking 0.695 62210
pipelines 0.687 21092
dewatering 0.687 87432
Marcellus 0.680 34448
extraction 0.674 11465
groundwater 0.674 17131
Hydraulic 0.673 46631
tailings 0.670 49890
aquifers 0.669 48296
hydraulically 0.668 90196
seismic 0.663 19767
Drilling 0.662 33103
frac 0.658 62457
subsurface 0.658 41325
hydrocarbon 0.656 36213
mining 0.655 4846
shales 0.655 97010
liquefaction 0.654 86945