OIL DEPOSIT DEVELOPMENT METHOD Russian patent published in 2012 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: method includes oil extraction through production wells and pumping of working agent through injection wells in cyclic mode: 10-20 days - pumping-in, 10-20 days - stop. All injection wells are interconnected hydrodynamically via ground water conduits with the possibility of working agent cross-flow. In the course of working agent pumping-in the injection wells are stopped and started simultaneously. The research of injection wells is made at average values of monthly lunar high and low tides amplitude. If the water content of the extracted product is lower than the economical value in the oil formation, horizontal bores are drilled from the productive wells in the direction of parallels perpendicular to meridians in such a way that they are arranged at the level of oil-water contact. All injection wells are divided into two groups. Note that the cycle of working agent pumping-in and stop into these groups of injection wells is rotated. Working agent pumping-in to the injection wells is done in the period of daily lunar low tide of formation water when the Sun and the Moon are at the side of these injection wells. Working agent pumping-in stop to these injection wells is done in the period of daily lunar high tide of formation water when the Sun and the Moon are at the opposite side relative to these injection wells.

EFFECT: extension of formation coverage by production wells as well as reduction of extracted product water content and improvement of formation development efficiency due to the Sun and the Moon location considerations.

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