Related by context. Frequent words. (Click for all words.) 55 compressor 54 saltwater disposal 53 corroded pipe 53 gallon propane tank 52 reinjection 51 centimeter diameter 51 steam boiler 51 baghouse 51 Sulfuric acid 51 thermal oxidizer 50 hydrogen fluoride 50 hydraulic hoses 50 propane burner 50 frac fluid 50 #/#-in [001] 49 rubber gasket 49 pentane 49 Muskeg River Mine 49 hydraulic jack 49 Horizontal drilling 49 depressurized 48 propane tanker 48 Deepwater Horizon blowout preventer 48 separator 48 drip pan 48 Compressor Station 48 sump 48 millimeter diameter 48 wellbores 48 shutoff valves 48 steam boilers 48 fuel injector 48 coalbed methane wells 48 delayed coker 48 cased hole 48 fractionator 48 ultraviolet disinfection 48 derrick 48 penstock 48 highwall 47 submersible pumps 47 hydraulic cylinder 47 compressed air 47 delayed coking 47 Tesoro refinery 47 feedwater 47 Beaudo 47 superheated steam 47 corroded pipes 47 submersible pump 47 flammable vapors 47 cm diameter 47 inch diameter 47 fracturing fluids 47 acetylene torch 47 biofilter 46 storage tanks 46 vent hood 46 fracture stimulations 46 solenoid valve 46 gasifiers 46 depressurize 46 degassing 46 Compressed air 46 chlorinator 46 highly flammable liquid 46 Kuparuk 46 electrostatic precipitator 46 coil tubing 46 acetylene cylinders 46 reactor coolant 46 pipe ruptured 46 combustion gases 46 argon gas 46 exhaust vent 46 fume hood 46 Chesapeake Appalachia 46 heat exchanger 45 injection wells 45 fermentation tanks 45 pipe 45 diaphragm pumps 45 belt conveyor 45 injector 45 solenoid valves 45 evaporation ponds 45 roofing tar 45 Chocolate Bayou 45 cathodic protection 45 Propane tanks 45 dewater 45 overpressure 45 desalting 45 welding torch 45 valve 45 elemental sulfur 45 Lisburne 45 jackscrew 45 alkylation unit 45 shutoff valve 45 firebox