Oil and gas well equipment, namely, perforation plugging devices, composed of synthetic fibers, for controlling pressure and/or fluids downhole; Oil and gas well equipment, namely, bridge plugs and fracturing plugs composed of plastic and synthetic rubber for controlling pressure or fluids downhole

'and/or':17 'bridg':26 'compos':10,31 'control':15,38 'devic':9 'downhol':19,42 'equip':5,24 'fiber':13 'fluid':18,41 'fractur':29 'gas':3,22 'name':6,25 'oil':1,20 'perfor':7 'plastic':33 'plug':8,27,30 'pressur':16,39 'rubber':36 'synthet':12,35 'well':4,23

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