A method for stabilizing unconsolidated formations sand control

摘要

FIELD: oil and gas production.;SUBSTANCE: method for treatment of underground bed includes stages (a) of pumping composition into underground bed through borehole. Composition contains (i) solvent in essence consisting of water dissoluble solvent including any solvent soluble in water at least at 25 wt %. Solvent amounts from approximately 95.5% to 99.9% wt of composition and (ii) solidificated resin amounts from approximately 0.01% to approximately 4.5 wt %. Also, solidificated resin and solvent are chosen so, that solidificated resin is dissolved in solvent to maintain ratio of solidificated resin to solvent. Further, the method includes (b) installation of mechanical device for prevention of sand carry-over to the borehole of the well either before, or after composition has been pumped into the well.;EFFECT: reduced migration of fine dispersed materials at improved or maintained flow rate of hydrocarbon.;17 cl, 4 ex, 5 dwg