| 摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: method involves construction of upper injection and lower production wells with horizontal sections located one above the other, pumping of heat carrier via injection well with bed heating and extraction of product via production well, pickup of thermogram of steam chamber, and analysis of its warming state. During construction of wells their horizontal sections are equipped with filters. Inside filter of injection well there arranged is the shank equipped with inlet holes. Shank is equipped from the inside with the stock lowered on pipes which are equipped on wellhead with two-directional hydraulic jack. Space between stock and shank is tightly isolated with annular inserts prior to lowering. In order to change heating zones at temperature peak values, pumping of heat carrier is stopped, excess pressure is created in hydraulic jack, which leads to longitudinal displacement together with stock pipes in the shank so that its side channels, when passing through annular inserts, connect inner space of stock to neighbouring heating sections which were not brought into action earlier. If initial state is required again, excess reverse pressure is created in hydraulic jack. ^ EFFECT: reduction of financial and material costs for implementation of method, improvement of development efficiency of heavy oil or bitumen mine field. ^ 1 dwg |
