CONCENTRATE FOR PREPARING OIL DEPOSIT DEVELOPMENT CONTROL COMPOSITION AND OIL DEPOSIT DEVELOPMENT CONTROL COMPOSITION Russian patent published in 2004 - IPC

FIELD: oil and gas production.

SUBSTANCE: invention concerns development of watered permeation-irregular oil deposits and properties oil deposit development control composition containing galactomanine as polymer, cellulose ether or polyacrylamide, and surfactant at following ratio: (0.05-2.0):(0.001-0.9):(0.01-1.0), respectively. Concentrate further contains modified starch according to following ratio: (0.05-2.0):(0.001-0.9):(0.01-1.0), respectively, or concentrate additionally contains sodium benzoate and/or potassium sorbate at following ratio: (0.05-2.0):(0.001-0.9):(0.01-1.0):(0.001-0.5), respectively, or concentrate additionally contains modified starch, sodium benzoate and/or potassium sorbate at following ratio: (0.05-2.0):(0.001-0.9):(0.01-1.0):(0.1-3.0):(0.001-0.5), respectively. Oil deposit development control composition contains 0.061 to 7.4% of indicated concentrate and solvent (the rest).

EFFECT: improved physico-mechanical characteristics and increased coverage of formation.

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