API TYPE DRILLING MUD BENTONITE
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BENTONITE FOR DRILLING MUDS
Even though the composition of drilling muds has undergone several significant changes over the years (they were first used in the beginning of the 20th century), this remains one of the most important markets for bentonite.
Drilling muds must fulfill the following functions
Extract cuttings and keep the bottom of the wellbore clean
Cool the drilling tool
Control formation pressures and wellbore stabilization
Suspend cuttings
Transmit hydraulic power to the tricone
Help support the drill string
Make it possible to add densifier agents
API TYPE DRILLING MUD BENTONITE
Description: Sodium montmorrillonite
Chemical composition: Hydrated silicate with general formula (Na, CA); (Mg, Al)2 (OH)2Si4O19.11H2O, containing quartz, feldspar, and gypsum impurities.
Average Chemical Analysis
COMPOUND CONTENT
SIO2 (g/100g) 62.2
AL2O3 (g/100g) 16.35
Fe2O3 (g/100g) 4.09
TiO2 (g/100g) 0.65
P2O5 (g/100g) 0.06
MnO (g/100g) 0.03
CaO (g/100g) 0.63
MgO (g/100g) 3.26
Na2O (g/100g) 2.38
K2O (g/100g) 0.32
SO3 (g/100g) 0.20
PPC a 1000 ºC (g/100g) 9.82
SPECIFICATIONS
API TYPE BENTONITE: Natural bontonite developed according to the Americam Petroleum Institute’s international standards. The distinctive feature of this product is its YP to PV ratio of 3. It is suitable for water-based drilling muds with all kinds of additives.
TYPICAL PHYSICOCHEMICAL CHARACTERISTICS API STANDARDS, SPECIFICATION 13A
Type of material Moisture (%) Reading @ 600 rpm Reading @ 300 rpm Plastic viscosity Yield point Filtrate Apparent viscosity
API Max.13.5 Min.30 Min.23 Min.7 Max 50 Max 12 Min. 15
Yield YP to PV ratio Screen analysis # 200
Min. 90 Max. 3 Max. 20
APPLICATION: The proportion of bentonite in the drilling mud depends on the type of solid to be extracted; typically, drilling mud density is between 50 Kg/m3 and 60 Kg/m3, with a viscosity of 15 cp.
AVAILABLE IN:
25 Kg bags, palletized (treated or untreated pallets), fastened with hoops and waterproofed with 200 micron heat shrink wrap.
1000Kg BIG BA
