Fluid loss agent

AV/mPa·S

PV/mPa·S

YP/Pa

HTHP_FL/mL

API_FL/ml

ES/V

2.5% SPNH

25

18

7

3.8

4.2

601

2.5% PAC

28

21

7

4.2

3.5

622

2.5% CMC

28

20

8

4.5

3.8

620

2.5% SK-2

27

19

8

5.1

4.6

613

2.5% SDJ-1

24

18

6

3.2

1.6

625