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

Potassium Asphalt Sulfonate

Potassium Asphalt Sulfonate
Potassium Asphalt Sulfonate




Potassium 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 highlysulfonated 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.

Potassium 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.In addition to providing

the same unique quality as Sodium Asphalt Sulfonate, Potassium Asphalt Sulfonate contributes

water-soluble potassium ions to the mud system. This is beneficiary to those areas that require the specific

action of potassium to adequately minimize water-induced clay swelling.It is a proven extensively used drilling

fluid addtive having manyfine properties.Oil asphalt is basal raw material.

It appears brown in easly breakable pieces or fluidized powder. It is density is 0.98g/cm3.

It is parly wa-ter soluble partly oil soluble for every kind of drilling fluid. The product include

two types of high water soluble sodium asphalt sulfonate FT,kalium asphalt sulfonate FT-K.




high water soluble ET








Moisture %



Sodium sulfonate content %






water soluble content %



oil soluble content %



HTHP. FL reducing rate %





They can emulsify fresh water or sea water with oil, deperess the solidexpansion of drll chips, control HTHP FL,

produces thin and tenacious mudcakes,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 sotorage and transporty see that the bag is intact as the product is water soleble. But its property is not affected even if it becomes damp.

Key Words:

Potassium Asphalt Sulfonate; Asphalt Sulfonate

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