DEVELOPMENT METHOD OF MULTILAYER HIGH VISCOSITY OIL POOL AND BITUMEN Russian patent published in 2010 - IPC E21B43/24 

FIELD: oil-and-gas production.

SUBSTANCE: method includes drilling of vertical wells and pair horizontal producing and located higher forcing wells, forcing of heat-carrier of well and production withdrawal from producing well. There are extracted stratums, separated by clay interlayers, of higher and less thickness, there are located coupled horizontal wells in stratums of higher thickness. Vertical wells are communicated to corresponding stratums of less thickness, herewith heat carrier is pumped into coupled horizontal wells. After heating of corresponding stratum, it is sampled production from stratum from producing well with separation of water which after pre-heating is pumped into vertical wells with following withdrawal production from them of corresponding stratums.

EFFECT: increasing of generation grade of storage of high-viscosity oil and bitumen is higher than argillaceous interlayers with increasing of withdrawal rate of oil.

1 dwg