DEVELOPMENT METHOD OF MULTI-OBJECT OIL DEPOSIT (VERSIONS) Russian patent published in 2019 - IPC E21B43/14 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry and can be used in development of multi-object oil deposits. Method for development of multi-object oil deposit, containing two versions of well design, depending on geological features of object. In compliance with first version, design well bores are uniformly located at lower deposit and first drilling coordinate is fixed, location of cluster pads of drilling is determined, trajectories of wells are plotted from the bush along the minimum possible length of the borehole; then, at the level of the upper productive horizon, points of intersection of shafts of each well with the formation roof are shifted in the direction of location of the lower point to allowable values of borehole curvature, taking into account forming maximum possible uniform grid, second drilling coordinate is fixed, wells with equipment for simultaneous separate operation on upper and lower objects are started. In compliance with second version, design well bores are uniformly located at the upper production site of the deposit and the first coordinate drilling target is fixed, location of cluster pads of drilling is determined, then trajectories of wells are constructed from the bush along the minimum possible length of the borehole, after which vertical projection of the well-point is performed to the lower production site of the deposit, second target of wells falling into zones of substandard thicknesses or to allowance of drilled well is canceled, or position of second target is corrected relative to direction of well shaft in order to form uniformity of development grid, wells with equipment of simultaneous separate operation on upper and lower object are started.

EFFECT: disclosed is a method of developing a multi-object oil deposit.

3 cl, 3 dwg