GEOSYNTHESIS ENGINEERING

Development and service of drilling fluid

Organo-mineral colmatant for clayless drilling mud «BIOСAR®» provides full isolation of permeable layers and eliminates the need for selection of fractional composition of colmatant.

TYPICAL PHYSICAL PROPERTIES

  • Physical appearence: Beige-coloured loose powder;
  • Solubility in water: Рractically insoluble;
  • Sieve analysis: Residual on sieve 007 not more than 20%;
  • Bulk density without shaking: 550-700 kg/m3;
  • рН 40%-aqueous solution: 6-8;

APPLICATIONS METHOD AND SCOPE

  • Alevron® is an auxiliaru filling agent, which provides an impermeable colmatation layer on the surface of production horizons.
  • Colmatant particles size - in the range 20 to 200 microns.
  • The colmatant Alevron® is used to create colmatation layer in conbination with carbonate fillers, such as: KN-50, MK-30, MK-60, Barocarb, dolomite powder.
  • Colmatant can be used to elimimate fluid losses.
  • Alevron® is recommended to use in special fluids for perforation, well-killing and conservation, and also to isolate core sample from external influences at the coring operations.
  • The Alevron® concentration range is from 0,1 to 0,3%.
  • Colmatant is added to the mud system by two ways. The first way is added directly into mud with jet cutter-pulverizer, the second way is addition of 20-40% suspension through mud mixing systen.

ADVANTAGES

  • Colmatant is ecologically clean, natural filling agent, that is not dispersed in water.
  • Special feature of Alevron® is increasing the rheological and structural-mechanical characteristics of clayless drilling muds and reducing their filtration loss.
  • Colmatant does not have abrasive properties and so it does not harm pumping and circulation equipment.

PACKAGING AND І STORING

Colmatant Alevron® is dilevered in dry form. Alevron® is packed in multilayered paper bags 25 kg each. Colmatant should be stored in dry places.