Clay and polymer destructor KDS – 1
Complex chemical KDS - 1 is used in carbonate and sandstone reservoirs at post drilling completion as a destructor of clays and polymers contained in mud fluids, and as a base for perforation fluid which prevents swelling of reservoir clays.
Complex chemical KDS - 1 breaks filter cake formed while drilling with clay-polymer drilling mud by destructing colmatating polymers and clays used in the muds.
Complex chemical KDS - 1 is a dry composition containing potassium chloride salts, surfactants and an effective oxidizing destructing agents.
- Fresh oil and gas well completion after drilling operations in carbonate and sandstone reservoirs.
- Base for perforation fluid.
Crystal powder with the color varying from
white to gray, reddish-brownish tints are allowed
Mass concentration of KCl, %,
pH of 1% water solution,
- Solution of KDS-1 has high inhibitining action for the rocks being hydrated.
- Solution of KDS-1 destructs efficiently polymers forming the colmatating cake at drilling-in.
- Solution of KDS-1 prevents forming of oil-water emulsions at well completion.
- Solution of KDS-1 is not corrosive.
Recommended consumption rate
Complex chemical KDS – 1 is diluted with fresh water. The effective concentration if the material in the working solution makes 0.5- 5 % by weight depending on the application conditions.
The chemical is applied with dynamic bath technique followed by the acidizing with KSPEO or FLUXOCORE® 210 acid stimulation fluids. KDS – 1 facilitates critical area permeability build-up due to the destructing of colmataing screen formed with the mud.
Consumption of KDS – 1 depends on the type of operations to be performed, on composition of the mud, composition of the rock and the extent of plugging.
Recommended consumptions make:
- 0.5-1.5% for making the perforation fluid;
- 3.0% for the destruction of polymer cake;
- 5.0% for the destruction of clay-polymer cake.
To select the optimal consumption of KDS – 1 and technique of its application, it is recommended to contact the specialists of Service & Sales Department of Polyex company.
Complex chemical KDS - 1 is supplied in metal or cardboard drums with 100 l capacity.
Complex chemical KDS - 1 is certified for the application in oil-and-gas industry.