Dolomite weighting agent
Dolomite weighting agent for drilling fluids is a fine powder based on the ground carbonate-containing mineral dolomite.
Dolomite is comparable to marble in density and hardness, but is resistant to hydrochloric acid: dolomite reacts very slowly to cold hydrochloric acid, boiling at high temperatures, while calcite immediately reacts with it. That is why microcalcite - ground marble, which has a high level of solubility in hydrochloric acid, is more preferable in the use of oilfield services.
Preparation of drilling mud using dolomite weighting agent:
Most often, ground dolomite fractions of 80-100 microns are taken as the base of the weighting agent, producing secondary grinding and enrichment: plasticizers, biopolymers, carboxylmethylcellulose, etc.
Advantages of using dolomite weighting agents for drilling fluids:
- The use of dolomite weighting agents makes it possible to achieve soil colmatation-filling the pores of the well walls with water-insoluble particles to achieve well stability to ground water;
- Preserving the throughput capacity of productive horizons when they are opened;
- The use of dolomite weighting materials improves the connectivity of weakly cemented rocks;
- Prevention of wear and tear of drilling equipment from abrasives and corrosion;
- The use of dolomite and carbonate weighting agents does not violate the temperature regime of frozen rocks.
When exposed to the dolomite weighting agent, the drilling fluid acquires a gel-like state, preventing the drilling equipment from sticking in the well.
Main fractions of dolomite weighting agents of drilling fluids:
- 10-40 microns;
- 45-75 microns;
- 100-160 microns.
Buy carbonate weighting agent for drilling fluids:
To buy a dolomite weighting device from the manufacturer, as well as to get additional information about the product, you can fill out an application on our website – our manager will contact you!