oil industry modified starch making machine in lagos

   
oil industry modified starch making machine in lagos
                                               
                                               
                                               
                                               
  • oil industry modified starch making machine in lagos
Can modified starches be used as fluid-loss controllers in oil-based DF?

For instance, modified starches were tested as fluid-loss controllers in oil-based DF, by substantially adjusting starch's characteristics, however, due to the raw form of these starches, they were only able to resist temperatures of up to 121 ¡ãC ( Dias et al., 2015 ).

Can modified starch be used as drilling fluid additives?

The current state of the art with respect to applications of modified starch as drilling fluid (DF) additives and the main modification methods to produce them are reviewed in detail.

Are starch derivatives used in oil & gas drilling?

Starch derivatives are infrequently employed as filtration reducers during the drilling of the top-hole sections of oil and gas wells (i.e., surface/intermediate casing intervals). When they are utilized, it is usually with salt-water-based DF or under high salinity conditions.

Which starch is used as DF additive?

The most widely used modified starches as DF additives are pre-gelatinized precipitates, carboxymethyl starch, hydroxypropyl starch, sulphonated starch, graft copolymerization products, and phosphate oxide starch. Of the modified starches mentioned, carboxymethyl starch displays the highest temperature resistance.