Product performance and use:
The oxidized asphalt powder of drilling fluid is a dark brown flowing powder. It is mainly used as shale inhibitor of drilling fluid, and has the functions of viscosity reduction and fluid loss reduction, lubrication and high temperature and high pressure fluid loss reduction. It is a multi-functional organic treatment agent.
Product Profile
This product mainly produces powdery oxidized asphalt from asphalt and surfactant through oxidation process, which replaces the past sulfonated asphalt blend and is cationic to further improve the performance of the product. After the introduction of cation, the inhibition of the product is greatly enhanced, and the good stability and wall building property in the drilling fluid are enhanced, and the filter loss and solid content are reduced, The drilling fluid has good structural and mechanical properties. As the cementing agent of plugging material, it can improve the plugging effect of plugging agent. The asphalt colloid can plug and lubricate the well wall in the non lost drilling fluid. The well flushing fluid for low production oil layer containing natural asphalt aggregates has good crusting and cohesiveness. Under high temperature and high pressure, asphalt colloidal particles and submicron particles become soft under the high temperature of the drilled formation, deform under the effect of differential pressure, fill the micro cracks embedded in the irregular well wall, block the micro cracks in the well wall, adhere to the well wall to form thin and ductile filter cake with small permeability and compressibility, improve the wall building property, reduce the filtration loss, thus preventing the surface hydration and seepage hydration of the stripped shale, and inhibiting the expansion of the shale, Dissociation and spalling to prevent collapse and stabilize well wall.
application
Reduce the cation of filtration, inhibit clay expansion and shale dispersion
Reduce the possibility of shale collapse and stabilize the borehole wall
Restrain the dispersion and collapse of shale
advantage
The oxidized asphalt powder can be used in vertical wells, deep wells, inclined wells, horizontal wells, fresh water, salt water, sea water and saturated salt water drilling fluids.
As the oxidized asphalt powder is powdery, it can be used both in summer and winter, and will not cause caking, so it is convenient for construction.
Oxidized asphalt powder can reduce friction and blockage due to some surfactants.
parameter
Test item | Indicators | |
Appearance | dark brown flowing powder | |
Fineness (30 mesh) residue% | ≤10 | |
Bake loss,% | ≤10 | |
Ash content,% | ≤25 | |
Oil solubility,% | ≥40 | |
Softening point, ℃ | 150-220 | |
Plugging performance of drilling fluid | APL filter loss, ml | ≤10 |
HTHP filtration, ml | ≤25 | |
Foaming rate% | ≤10 | |
storage
Store in a cool, ventilated and dry place, and limit the stacking height to prevent caking. Protect from sun exposure, high temperature and rain.
package
25kg sacks
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