Catalogue

CPDM colloidal-polymer dry mix

CPDM colloidal-polymer dry mixes are two-component compositions designed for preparation of colloidal-polymer drilling fluids both in fresh and saline water.
Characteristics of colloidal-polymer fluids prepared on the basis of CPDM mix.

 

Product specs

Density, kg/m3	1030–1440
Funnel viscosity, s	30–80
Filtration, cm?/30 min	2.0–5.0
Gel strength (GS1/10), dPa	14/19–57/71
Hydrogen value pH, units	6.7–7.0
Plastic viscosity, mPa·s	10–50
Ultimate yield point, dPa	48–96

 

CPDM-R grade is a composite hydrophobic material used to prevent differential seizures of drilling tools and casing strings. In addition to pronounced anti-seize properties, CPDM-R reagent can be used as a colmatage additive to prevent lost returns.CPDM-R composition characteristics

 

Parameter	CPDM-R 1	CPDM-R 0.5
Appearance	Gray to black powder White inclusions are allowed
Sieve residue: 1 mm 0.5 mm	NMT 10%	NMT 10
Solubility in 15% HCl solution, %, NLT	80
Seizure torque reduction, %, NLT	70

 

Application

Colloidal-polymer drilling fluids based on CPDM series reagents are used during well construction to expose carbonate deposits, including under conditions of abnormally low reservoir pressures and by sidetracking horizontal wellbores.

 

Treatment

The recommended consumption of reagents for preparation of 1 m? of drilling fluid is 55-75 kg. CPDM-R reagent consumption is determined by drilling conditions, the recommended content of the reagent in drilling fluid is up to 10 kg per 1 m? of drilling fluid.

 

Packaging

The reagents are supplied in polypropylene bags, a small bag containing the specified amount of activator modifier reagent is additionally placed in the bag with CPDM grade.



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