Correction to: Journal of Petroleum Exploration and Production Technology https://doi.org/10.1007/s13202-021-01328-6

Wrong Figure 3:

figure a

Correct Figure 3:

figure b

Wrong Fig 4:

figure c

Correct Figure 4:

figure d

Incomplete Table 2:

Conc.

Average grain size of PC:Gly-based mud (nm)

Dry Na-Bt

336

Base sample

434.81

0.1%

379.42

0.5%

355.80

1%

 

Complete Table 2:

Conc.

Average grain size of PC:Gly-based mud (nm)

Dry Na-Bt

336

Base sample

434.81

0.1%

379.42

0.5%

355.80

1%

353.63