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MEX POL

DESCRIPTION

MEX POL is a modified starch additive specially designed to reduce fluid loss. It is used to reduce fluid losses in mineralized drilling fluids and in primary drilling fluids. The effect of the additive is manifested through the synergetic interaction with biopolymer (xanthan gum), and the ability to provide unique viscosity values at low share rates.

 MAIN PHYSICAL PROPERTIES:

Appearance:                                                                             fine white powder

Density:                                                                                   1.5 g/cm3

 APPLICATION:

MEX POL is used to control water/ fluid loss. Unlike any other fluid loss reducers, it provides maximum values of viscosity at low shear rates in combination with polymers. It is used in the primary drilling solutions, and it builds up a thin and fragile filer cake which can easily be removed in minimal underbalanced conditions. It is used to treat fresh-water-based and  mineralized drilling fluids, to mix kill fluids, and to treat/ condition completion fluids. 

 It is recommended to add the agent through the hydraulic hopper as slow as possible to provide its maximum efficiency. It should be 5 to 7 minutes per bag. The additive dissolution rate depends on the temperature of the mix water and on the composition of the solution.

 The recommended concentration of the additive varies within 5 to 14 kg/m3 dependent on the required level of fluid loss and on the mud composition.

      ADVANTAGES:

      LIMITATIONS:

  • Low fluid loss properties.
    • Synergetic effect when used with biopolymer.
    • Thin and easily removable mud cake.
    • High efficiency of  salt saturated drilling fluids.
  • The additive is biodegradable (it is recommended to use bactericide with this additive).
    • If the temperature is above 120 оС, it is necessary to use it with a thermal stabilising agent.
 

PACKAGING AND HANDLING 

MEX POL is packaged in 25 kg multilayer paper bags. Use conventional PPE when handling the product (safety goggles, gloves and dust mask. Handle as recommended in the MSDS.

 

 

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MEX POL