METHOD OF DEVELOPING AN OIL FIELD WITH A FRACTURED RESERVOIR Russian patent published in 2018 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to petroleum industry and can find application in development of an oil reservoir with a fractured reservoir. Method of developing an oil deposit with a fractured reservoir includes drilling a pilot well, determining from the geophysical data in the productive reservoir the prevailing direction of the deposit fracture, drilling from the pilot well of the same multidirectional paired horizontal trunks, that are directed in opposite directions from the well. And the first pair of horizontal trunks is drilled perpendicular to the direction of natural fracturing. In this case after posting of each horizontal barrel by selection, the increase in production rate in the pilot vertical well is determined. Upon completion of the construction of the horizontal trunks, the increment of the debits of the paired trunks is summarized. Two most productive pairs of trunks are selected in the total expression, when viewed from above in the direction of the pairs, vectors are created starting in the pilot vertical borehole, proportional to the total production rate of these pairs with an angle between them not exceeding 90°. Summarize the resulting vectors. Parallel to the direction of the resulting vector, an additional pilot well with several inclined and horizontal unidirectional trunks is constructed, but with different zenith angles having the same length of the exposed section in the deposit. Determine the productivity of each barrel, select the two most productive trunks and in the direction of these trunks in the vertical plane, vectors are constructed with the beginning in an additional pilot well proportional to their production rate, the resulting vectors are summed. Parallel to the direction of the resulting vectors in the direction in the horizontal and vertical planes, the entire reservoir is equipped with producing and injection wells.

EFFECT: technical result is an increase in the efficiency of the development of the oil deposit.

1 cl, 1 ex, 2 dwg