Breaking inside formation {HEAD ~ pores} is accomplished without {TAIL ~ mechanical intervention} or use of a second fluid 
Breaking inside formation { HEAD ~ pores } is accomplished without { TAIL ~ mechanical intervention } or use of a second fluid
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH