SL-FL01 is a water-soluble polymer with AMPS as the main monomer. It reduces the permeability of mud filter cake through molecular chain polymerization. The polymer has strong dispersibility and is resistant to high temperature and salt.
Product Description
Technical & Engineering Information
During the drilling process, the loss of drilling fluid is inevitable, and filter cakes can be formed to protect the well wall through loss. However, if the loss of drilling fluid is too large, it is easy to cause shale expansion and collapse, resulting in instability of the well wall. In addition, as the loss increases, the filter cake thickens, the well diameter shrinks, causing a large torque to the rotating drill, causing pumping and pressure fluctuations during drilling, and easily causing differential pressure to stick the drill. Therefore, proper control of the loss is one of the important properties of drilling fluid.
SL-FL01 is a polymer compound that can dissociate negatively charged groups in water. On the one hand, it can be adsorbed on the surface of clay to form an adsorption layer to prevent clay particles from flocculating and growing larger; on the other hand, it can stabilize the fine particles disassembled by the circulation and stirring of the drilling fluid through adsorption, and no longer stick to large particles. In this way, a sufficient proportion of fine particles can be guaranteed, so that the drilling fluid can form a thin, dense, low-permeability, high-quality filter cake to reduce the loss.
Technical Indicators
Item | Indicator |
Appearance | Powder or Granules |
Color | White |
Moisture, ﹪ | ≤8.0 |
Fineness (0.315mm shorts), ﹪ | ≤0.50 |
1.0% in water, AV, mPa.s | ≤20 |
0.5%, API FL(180℃/16h),mL | ≤15 |
Free fluid, ﹪ | ≤1.4 |
Compression strength, MPa/102℃. 21MPa. 24h | ≥14 |
The ingredients of the cement in the table are：G class cement 8%; water 352ml; dosage 0.8﹪SL-FL01.
Recommended Treatment
Temperature resistance: up to 160℃(320℉)
Salt Resistance: fresh to saturated water
Dosage：0.5﹪~1.2﹪(BWOC)
Solubility with cement: any class of cement, well cement stability, free fluid is close to zero. Has a certain retarding property on the cement slurry.
Density range: any density of cement slurry
Packing and Storage
SL-FL01 is supplied in plastic-lined bags with a net weight of 25 kg/bag. Keep it away from extreme conditions such as wet and humid places or direct sunlight.
Shelf life: 2 years.
