| 摘要 |
FIELD: oil-and gas industry. ^ SUBSTANCE: according to method execute water withdrawal on a gas or gas-condensate field, predominately form well located near by an initial gas pool outline. Simultaneously with it execute withdrawal of the gas trapped with water by decreasing a reservoir pressure, executed with periodical intensive the reservoir water withdrawal and cyclical depressive bottomhole treatment at every reservoir pressure stage. At that define the depression value according to a condition that, hydro-dynamic pressure gradient at a terminal capillary effect area in the bottomhole zone is greater than the capillary pressure gradient of this area and a duration of every cycle depression has to satisfy a condition, defined from an analytical equation. ^ EFFECT: gas trapped with water recovery from watered gas or gas-condensate fluids increase. ^ 1 ex, 1 tbl, 4 dwg |
