Research on the Preparation and Mechanism of the Organic Montmorillonite and Its Application in Drilling Fluid

Table 1

Performance parameters of Mt and organic Mt.

Concentration of C12mimCl (mg/L)	Viscosity curve	Contact angle pattern (°)	Viscosity (mPa·s)	(Å)
0 mg/L	—	48	—	12.63
50 mg/L	25	54	22.8	14.68
100 mg/L	36	59	29.0	14.82
500 mg/L	44	63	36.3	14.92
2000 mg/L	51	67	43.4	17.58
5000 mg/L	58	71	49.3	20.86
10000 mg/L	58	72	49.8	20.88