1.The world’s leading manufacturer of Xanthan gum,Oil Driling Chemicals etc.
2.Handle about 200,000 tons of chemicals,doing over 20,000 deliveries with a turnover of about 25,000,000 USD.
3.We start the bussiness since the year 1997.

Shale inhibitor

Sodium Asphalt Sulfonate

Sodium Asphalt Sulfonate
Sodium Asphalt Sulfonate




Sodium Asphalt Sulfonate is partially water soluble and water dispersible.

It acts to aid in stabilizing shale sections, controlling solids dispersion and improving

wall cake characteristics. Unlike some other blending gilsonite, it is highly sulfonated

by unique process which leads to partially oil soluble as well. This property gives more

excellent emulsifying characteristic. It is also highly resistant to temperature.

Sodium Asphalt Sulfonate stabilizes shale formation by inhibiting disintegration of the

shale both chemically and physically. It inhibits the dispersion of drilling cuttings,

controls high temperature high pressure (HTHP) filtration. It reduces torque and drag,

prolongs the life of the bit, improves filter cake quality and enhances well productivity.

It also acts as an emulsifier of diesel oil.



Items index
FT-1 FT-1A
Appearance Powder Powder
PH 8-9 8-9
Moisture % ≤8.0 ≤8.0
Sodium sulfonate content % ≥10.0 ≥10.0
water soluble content % ≥70.0 ≥70.0
oil soluble content % ≤25.0 ≤25.0
HTHP FL reducing rate % ≥25.0 ≥25.0
Asphalt content % -- ≥42.0



They can emulsify fresh water or sea water with oil,depress the solid expansion of drill chips ,

control HTHP FL, produces thin and tenacious mud cakes, helps maintain low shearing rate under HTHP,

cleans and stabilizes well holes that have a great deal of collapsing shales.

stabilize shale statum

reduce rotative torque and prevent jamming

substitute of oil, including crude oil,waste engine oil and dieserl oil

depress the solid expansion of drill chips

control HTHP EL

produce thin and tenacious mud cakes

Recommended quantity to be added: 1-4%


Storage & Package:

25Kg net,sealed in 3-in-1 compound paper bag with plastic lining. During storage and transpory

see that the bag is intact as the product is water soluble. But its property is not affected even if it becomes damp


Key Words:

Sodium Asphalt Sulfonate; Asphalt Sulfonate

Links:Sodium polyacrylate Laboratory Refrigerator,Small Upright Freezer,Xanthan Gum