Potassium carbonate polyamine drilling fluid
A potassium carbonate polyamine drilling and drilling fluid technology, which is applied in the field of drilling fluid, can solve the problems of increased salinity of drilling fluid, lower use efficiency of other treatment agents, and no positive contribution to performance, so as to reduce the tendency of absorbing water, Strong inhibitory ability, the effect of inhibiting hydration
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[0024] Example 1
[0025] Prepare potassium carbonate polyamine drilling fluid from the following components (weight volume percentage)
[0026] Tap water + 1.2% polyanionic cellulose + 0.5% CHM + 0.2% XC + 10% potassium carbonate + 4% calcium oxide + 2% polyamine + 5% emulsified asphalt + 0.5% RH101 (low fluorescence lubricant) + 35% weight Spar
Example Embodiment
[0027] Example 2
[0028] Prepare potassium carbonate polyamine drilling fluid from the following components (weight volume percentage)
[0029] Tap water + 1.5% polyanionic cellulose + 0.5% CHM + 0.2% XC + 20% potassium carbonate + 8% calcium oxide + 2% polyamine + 5% emulsified asphalt + 0.5% RH101 (low fluorescence lubricant) + 35% weight Spar
Example Embodiment
[0030] Example 3
[0031] 4% bentonite slurry + 1.2% polyanionic cellulose + 0.5% CHM + 0.1% XC + 10% potassium carbonate + 4% calcium oxide + 2% polyamine + 5% emulsified asphalt + 0.5% RH101 (low fluorescent lubricant) + 35% barite
[0032] Potassium carbonate polyamine drilling fluid performance table
[0033] Drilling fluid
[0034] D: density of drilling fluid, g / cm 3
[0035] FL: API fluid loss, mL
[0036] PV: Plastic viscosity of drilling fluid, mPa·s
[0037] YP: Dynamic shear force of drilling fluid, Pa
[0038] Gel: initial cutting force of drilling fluid / final cutting force of drilling fluid, Pa
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