In {TAIL ~ some embodiments}, the systems, {HEAD ~ methods}, and heaters are used for treating a subsurface formation 
In
In { TAIL ~ some embodiments } , the systems , { HEAD ~ methods } , and heaters are used for treating a subsurface formation
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH