METHOD TO DEVELOP OIL-IN-WATER ACCUMULATION Russian patent published in 2010 - IPC E21B43/16 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to oil-and-gas industry and can be used in operation of wells with bottom water. Proposed method comprises upwelling of gas-fluid mix by deep-well pump lowered on pipe string and varying pump capacity. In compliance with this invention, field-physical properties of a pay and characteristics of pay saturation fluids are analysed to reduce water percentage in well products and fluid column height variations caused by lunisolar tidal forces. Well is equipped, right above said pay, with packer furnished with liner that has inlet channels arranged some 3 to 4 m below said pay. Now proceeding from the results of analyses, deep-well pump capacity is increased to required amount during lunar ebb-tide and decreased in high-tide.

EFFECT: simplified method, lower costs.

2 dwg