The second fracturing fluid comprises the base fluid, {HEAD ~ sand}, {TAIL ~ possibly a crosslinker}, and one or both of an adhesive and consolidation agent 
The second fracturing fluid comprises the base fluid , { HEAD ~ sand } , { TAIL ~ possibly a crosslinker } , and one or both of an adhesive and consolidation agent
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH