Characteristics of the Coal Fines Produced from Low-Rank Coal Reservoirs and Their Wettability and Settleability in the Binchang Area, South Ordos Basin, China

Figure 11

Contact angles of coal fines measured with different liquids ((a) distilled water, (b) 6501 solution, (c) glycol, and (d) clay curing agent).

(a)

(b)

(c)

(d)