METHOD FOR DEVELOPMENT OF HIGH VISCOUS OIL OR BITUMEN DEPOSITS Russian patent published in 2008 - IPC E21B43/24 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to development of hydrocarbons and can be implemented for extraction of high viscous oil and bitumen. The essence of the invention is as follows: the method includes boring of a well with two heads and securing it with a production string. At that, before securing of the well a horizontal portion of the two-head well is elongated and led to surface to form an additional bore with a head which is also secured with the production string. A middle head of the well is equipped with the pumping facility; pumping of a heat carrier and production withdrawal is carried out simultaneously. Pumping of the heat carrier is performed alternately via side heads of the well, while production withdrawal is performed through the middle head. Simultaneous pumping of the heat carrier and withdrawal of the production of the well facilitate more efficient development of a payout bed.

EFFECT: upgraded efficiency of development due to reduced labour intensiveness and costs for lowering-lifting operations.

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