Synthetic method of small cation with agglomeration preventing function for drilling in oil field

Abstract

The invention relates to a synthetic method of a small cation with an agglomeration preventing function for drilling in an oil field. The problems that the drying time is overlong, a fluidized bed does not work and the like occur in the preparation process of the small cation, so that finished products are agglomerated caused by non-thorough drying. The synthetic method comprises the following steps of: mixing various chemical substances according to the proportion; adding an organic solvent A, an organic solvent B and water in a three-neck flask; heating to constant temperature of 10-30DEG C; strongly stirring for 10-20 minutes; then adding a monomer C and a monomer D under the stirring condition and stirring until the solution is uniform; introducing nitrogen for 30 minutes; dropping an initiator E; meanwhile, introducing nitrogen and adding a dispersion agent F and tightly closing; reacting in a water bath at the constant temperature of 50-80DEG C for 4-8 hours to form a colloidal particle; feeding the colloidal particle into a fluidized bed for drying; and crushing to obtain a powder product. The product synthesized by the invention directly enters the fluidized bed without extra equipment and process as well as has the advantages of short drying time of dried powder, low energy consumption and agglomeration prevention.

Description

technical field [0001] The invention relates to a method for synthesizing small cations for oil field drilling with anti-caking function. technical background [0002] Since small cations form colloidal particles that are soft and have high water content during the preparation process, the general drying process is adopted, that is, the colloidal particles are made, and the method of adding a dispersant is dried in a vibrating fluidized bed, but in this way It often occurs that the drying time is too long, the fluidized bed is dead, and the finished product is agglomerated due to incomplete drying. In order to solve this problem, most of the processes are to add a rapid drying process after the colloidal particles are formed to ensure that the surface of the small cations is quickly crusted to prevent adhesion, and then sprayed into the dispersant for fluidized bed drying. Although the above problems are solved in this way, it has the disadvantages of high energy consumptio...

AI Technical Summary

Problems solved by technology

[0002] Since small cations form colloidal particles that are soft and have high water content during the preparation process, the general drying process is adopted, that is, the colloidal particles are made, and the method of adding a dispersant is dried in a vibrating fluidized bed, but in this way It often occurs that the drying time is too long, the fluidized bed is dead, and the finished product is agglomerated due to incomplete drying.

In order to solve this problem, most of the processes are to add a rapid drying process after the colloidal particles are formed to ensure that the surface of the small cations is quickly crusted to prevent adhesion, and then sprayed into the dispersant for fluidized bed drying. Although this solves the above problems, it has the disadvantages of high energy consumption and high dependence on equipment.