The apparatus 8 wherein {HEAD ~ said means} for pressurizing said hydrate forming gas comprises means for compressing said hydrate forming gas to a pressure of {TAIL ~ at least 400 psi} 
The apparatus 8 wherein { HEAD ~ said means } for pressurizing said hydrate forming gas comprises means for compressing said hydrate forming gas to a pressure of { TAIL ~ at least 400 psi }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL