Chrome lignosulfonate is a specially thinner used in drilling fluids. It has the character of anti-high temperature anti-electrolytes etc. It is mainly suitable to the conditions of complex gelogic and high or content in drilling deep well.
Physical and chemical index :
Item Requirement
Moisture (%) ≤ 8.5
Material insolution to water (%) ≤ 2.5
Calcium sulfate (%) ≤ 3.0
Total Cr (%) 3.6~4.2
Cr complex (%) ≥ 75.0
Mud performance:
Item Fresh water drilling mud Salt water drilling mud
Normal temperature Apparent viscosity mPa.s ≤ 20 ≤ 25
Rate of reducing viscosity % ≥ 85 ≥ 70
High temperature Apparent viscosity mPa.s ≤ 30 (150°Cç«ÂŠï¿½≤ 45 ç«ÂŠï¿½50°Cç«ÂŠï¿½
Rate of reducing viscosity % ≥ 65 ç«ÂŠï¿½50°Cç«ÂŠï¿½≥ 60 ç«ÂŠï¿½50°Cç«ÂŠï¿½
1��iti-high temperature 150~160 °C ,16 hours it`s mud peformance keep constant.
2��nti-electrolytes.In 2% Salt water ,it`s mud performance is better than FCLS (Ferrochrome lignosulfonate).
3��n the same mud ,it`s dilution performance is better than FCLS.
4��ith excellent thinning performance and filtration control capacity and powerful anti-electrolytes. It is suitable to all kinds of muds.
Application:
Chrome lignosulfonate may be added into drilling fluids either in the form of solution or powder. PH:10.0~10.5,As a thinner 0.5~1.0%(W/V).
Pakage:
25kg net weight. With PE film bag inside and paper-plastic complex bag outside.