Integrated Blocking Removal Technology in Low Permeability fields

Small molecule and strong permeable scale remover

There are three types of interaction: one is solubilization, because the molecular structure contains carboxylic acid, carbonyl, amide and other groups, these groups can form soluble complexes with Ca, Mg, etc., to enhance the solubility of inorganic salts in water; The second is crystal distortion, Ba2+, Sr2+, Fe2+ and other metal cations have chelation, resulting in inorganic salt crystal distortion and can not generate large crystal precipitation, so as to achieve the purpose of scale removal; The third is the dispersion effect, due to the solvent action, dissociated negatively charged polyion and scaling microcrystals collision, physical and chemical adsorption, inorganic salt microcrystals are adsorbed on the polyion chain, showing a dispersed state, suspended in aqueous solution does not precipitate can be discharged with the fluid, will not adhere to the metal surface scaling.

Cavitation removal and flowback integrated technology

During operation, combine the usage of nitrogen and high-pressure cement truck. A certain amount of gas is mixed in the continuous flow to stimulate acoustic vibration, which greatly reduces unplugging threshold, so that it is easier to remove plugging.

In addition, because the density of mixed gas water is lower than that of water, the bottom hole pressure difference is increased, and the formation blockage is easy to discharge. The synergistic effect of sound wave and gas-mixed water greatly improves the treatment effect, more than 161% compared with the simple gas-mixed liquid drainage process.