2 research outputs found
Study of Colloidal Stability and Rheological Properties of Invert Emulsion with Vegetable Oil as the Base for Drilling Fluid
Π Π°Π±ΠΎΡΠ° ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π° ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½ΠΎΠΉ
ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΠΈ ΡΠ΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ²
ΠΎΠ±ΡΠ°ΡΠ½ΡΡ
ΡΠΌΡΠ»ΡΡΠΈΠΉ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°ΠΏΡΠΎΠ²ΠΎΠ³ΠΎ
ΠΌΠ°ΡΠ»Π° ΠΈ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ΅ Π½Π° ΠΈΡ
ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°ΡΠΈΠΉ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π΄Π°Π½Π½ΡΡ
ΡΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈ ΡΠΈΡΡΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΎΡΠ½ΠΎΠ²Ρ Π΄Π»Ρ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ Π±ΡΡΠΎΠ²ΡΡ
ΡΠ°ΡΡΠ²ΠΎΡΠΎΠ². ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²
ΡΠΌΡΠ»ΡΡΠΈΠΉ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΠ»ΠΎΡΡ Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΌΠ°ΡΠ»Π° (ΠΎΡ 50 Π΄ΠΎ 90 ΠΎΠ±.%), ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ
ΡΠΌΡΠ»ΡΠ³Π°ΡΠΎΡΠ° (ΠΎΡ 1 Π΄ΠΎ 3 ΠΎΠ±.%) ΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ (ΠΎΡ 20 Π΄ΠΎ 80 ΠΎΠ‘). ΠΡΠ»ΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΡΡΡΠΎΠΉΡΠΈΠ²ΡΠ΅
ΠΈΠ½Π²Π΅ΡΡΠ½ΡΠ΅ ΡΠΌΡΠ»ΡΡΠΈΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ ΡΠΎΡ
ΡΠ°Π½ΡΡΡ ΡΠ²ΠΎΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°
Ρ ΡΠΎΡΡΠΎΠΌ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ, ΡΡΠΎ Π³ΠΎΠ²ΠΎΡΠΈΡ
ΠΎ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΈΡ
ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² Π΄Π»Ρ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΡΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈ
Π±ΠΎΠ»Π΅Π΅ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΡΡ
Π±ΡΡΠΎΠ²ΡΡ
ΡΠ°ΡΡΠ²ΠΎΡΠΎΠ²The paper is devoted to comprehensive studies of the colloidal stability and rheological properties of inverse emulsions based on technical rapeseed oil and developing on their base recommendations for using these environmentally friendly components as the base for synthesis drilling fluids. The study of the properties of emulsions was carried out depending on the concentration of oil (from 50 to 90 vol.%), the concentration of the emulsifier (from 1 to 3 vol.%) and temperature (from 20 to 80 Β°C). Stable invert emulsions were obtained, which retain their properties with increasing temperature, which indicates the possibility of their practical application as components for synthesis environmentally safer drilling fluid
Study of Colloidal Stability and Viscosity of Concentrated Aqueous Silicasols
ΠΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½ΠΎΠΉ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ Π½Π°Π½ΠΎΡΡΡΠΏΠ΅Π½Π·ΠΈΠΉ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
ΡΠ°Π·Π±Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΠΈΠ»ΠΈΠΊΠ°Π·ΠΎΠ»Π΅ΠΉ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½ ΡΠΈΡΠΎΠΊΠΈΠΉ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ ΠΌΠ°ΡΡΠΎΠ²ΡΡ
ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ (ΠΎΡ 1 Π΄ΠΎ 50 ΠΌΠ°ΡΡ.%) ΠΈ ΡΡΠ΅Π΄Π½ΠΈΡ
ΡΠ°Π·ΠΌΠ΅ΡΠΎΠ² ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΡΡ
ΡΠ°ΡΡΠΈΡ (ΠΎΡ 10
Π΄ΠΎ 35 Π½ΠΌ). ΠΠ½Π°Π»ΠΈΠ· ΡΠ΅Π΄ΠΈΠΌΠ΅Π½ΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠΎΠ² ΠΏΠΎΠΊΠ°Π·Π°Π», ΡΡΠΎ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Π½ΡΠ΅ ΠΎΠ±ΡΠ°Π·ΡΡ
ΠΎΠ±Π»Π°Π΄Π°ΡΡ ΠΎΡΠ΅Π½Ρ Π²ΡΡΠΎΠΊΠΎΠΉ ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½ΠΎΠΉ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΡΡ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½Π° Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·Π°ΡΠΈΡ ΡΠ°Π·ΠΌΠ΅ΡΠΎΠ²
Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠΉ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΠΈ, ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠ°ΡΡΠΈΡ ΠΏΠΎ ΡΠ°Π·ΠΌΠ΅ΡΠ°ΠΌ
Π² ΡΡΡΠΏΠ΅Π½Π·ΠΈΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ Π°ΠΊΡΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ Π±ΡΠ»ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΏΠΎΡΡΠΈ Π²ΡΠ΅
ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΠΌΡΠ΅ ΡΠΈΠ»ΠΈΠΊΠ°Π·ΠΎΠ»ΠΈ ΠΈΠΌΠ΅ΡΡ ΠΎΡΠ΅Π½Ρ ΡΠ·ΠΊΠΎΠ΅ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΡΠ°ΡΡΠΈΡ ΠΏΠΎ ΡΠ°Π·ΠΌΠ΅ΡΡ. ΠΠΎΠ»ΡΡΠ΅Π½Ρ
Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ Π²ΡΠ·ΠΊΠΎΡΡΠΈ Π½Π°Π½ΠΎΡΡΡΠΏΠ΅Π½Π·ΠΈΠΉ ΠΎΡ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΈ ΡΠ°Π·ΠΌΠ΅ΡΠ° Π½Π°Π½ΠΎΡΠ°ΡΡΠΈΡ.
ΠΠ° ΠΈΡ
ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠΎΡΡΡΠΎΠ΅Π½Ρ ΡΠΌΠΏΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΠΈ Π² ΡΠΈΡΠΎΠΊΠΎΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ ΡΠ°ΡΡΠΈΡA study of the colloidal stability of nanosuspensions obtained by diluting concentrated silicasols was carried out. A wide range of mass concentrations of nanoparticles (from 1 to 50 wt.%) and average sizes of primary particles (from 10 to 35 nm) were considered. The analysis of sedimentation experiments showed that the considered samples have a very high colloidal stability. The characterization of the nanoparticle sizes by electron microscopy was carried out. The particle size distributions in the suspension were obtained by acoustic spectroscopy. Almost all of the considered silica sols have been shown to have a very narrow particle size distribution. The dependences of the dynamic viscosity of nanosuspensions on the concentration and size of nanoparticles are obtained. Based on the dependences, empirical correlations in a wide range of particle concentrations were obtaine