DEVELOPMENT METHOD OF CONDENSATE POOL Russian patent published in 2010 - IPC E21B43/16 

FIELD: oil-and-gas production.

SUBSTANCE: according to method it is drilled condensate pool system of extracting and injection points in version of horizontal and it is implemented on the basis of cycling-process. For prevention of watering of extracted products it is created area of increased pressure nearby gas-water contact ensured by location on height of not more than one of tenth from gas-saturated thickness of stratum over gas-water contact of horizontal bores of injection point. For excluding of negative impact of stratified heterogeneity of collecting properties and increasing coverage ratio and condensate-removing of stratum horizontal trunks of producing wells are located close to top, indenting from roof covering not more than one tenth from gas saturation thickness of stratum. After stopping of cycling-process each injection point is sequentially passed into byte of extracting. After its watering it is implemented liquidation of horizontal bend of bore by means of its cementation or installation of cement bridging. In inclined part of well trunk in producing formation is higher than horizontal bend is implemented perforation or other method is finished, or it is implemented predrilling of side offshoot nearby seam roof, departing from roof and not more than one tenth from gas saturation of stratum thickness. Then it is implemented operation of well in the capacity of extracting.

EFFECT: effectiveness increase of development of deposit of natural hydrocarbon gases with dissolved condensate, increasing of condensate efficient factor of stratum, prolongation of period of anhydrous gas production and condensate and reduction of risks from implementation of cycling-process at presence of active bottom water.

2 cl, 1 ex, 1 tbl, 2 dwg