I.Product Overview
Polyamine inhibitor CA-1 for drilling fluid is a new oil layer protection agent for drilling fluid that can reduce the surface tension of water and drilling fluid filtrate, and can be used in low-porosity and low-permeability reservoirs to prevent or eliminate water lock. Drilling fluid inhibitor Polyamine inhibitor CA-1 has a strong inhibitory effect on shale that is easy to hydrate, and can prevent well wall collapse. Calcium and the ability to resist pollution from cuttings can significantly improve the rheology of the drilling fluid and improve the stability of the drilling fluid.
II. Technical indicators of polyamine inhibitor CA-1 for drilling fluid
|
Item |
Index |
|
Appearance |
colorless or brownish red liquid |
|
PH |
6±1 |
|
Density(g/cm3) |
1.10~1.30 |
|
Clay slurry reduction rate,% |
≥65 |
|
Anti-expansion rate of clay,% |
≥50 |
III. The principle of reducing surface tension drilling fluid
Polyamine inhibitor CA-1 for drilling fluid has multiple or multiple polar or strongly polar groups in its molecules, which are easy to interact with water molecules and formation clay to reduce the surface tension of water. These groups have a strong affinity with the silicon atoms in the silicate, inhibiting the hydration, dispersion and expansion of shale.
IV. Recommended dosage
1%~1.5% of the mud volume.
V. Application prospect of drilling fluid with reduced surface tension
Polyamine inhibitor CA-1 for drilling fluid is a new type of treatment agent with special functions. Its drilling fluid has good fluid loss reduction, anti-salt, anti-calcium, and anti-drilling cuttings pollution capabilities, and can significantly improve the rheology of drilling fluid , improve the stability of drilling fluid, and it can be used in areas with strict environmental protection requirements.
