Table 2 Removal efficiency of barite filter cake with and without the HF stage.

From: Complex barite filter cake removal using in-situ generated acids by thermochemicals

Sample ID

Sand content%

Without using quartz layer solvent

With using quartz layer solvent

Removal efficiency %

Removal efficiency %

Sample A

0

86

95

Sample B

10

77

91

Sample C

20

68

87

Sample D

30

60

83