发明名称 METHOD FOR EXTRACTION OF FLOODED OIL LAYERS WITH ZONAL NON-HOMOGENEOUS PENETRABILITY
摘要 FIELD: oil extracting industry. SUBSTANCE: for increasing operation area by means of oil layer flooding with zonal non-homogeneous penetrability force-pumping well is selected in most penetrable zone of non-homogeneous layer with ratio of penetrabilities in perforated interval of no more than 1.5, and having at least one interacting extraction well flooded no more than for 80%. At radius of 25 meters around the well, amount of mortar slurry is injected equaling 0.5 of cubic capacity of pores of water accepting intervals with slurry amount of 25-105 kg in cubic meter depending on penetrability, with 50% filling of pores of collector of water accepting intervals of layer. Injected slurry is compacted by pushing it to depth of 20 meters by feeding amount of water equal to one cubic capacity of pores of water accepting intervals of layer. Water is fed under pressure of 10- 20%, which surpasses pressure of slurry injection into the well. EFFECT: increased oil yield.
申请公布号 RU2226605(C1) 申请公布日期 2004.04.10
申请号 RU20030114192 申请日期 2003.05.14
申请人 发明人 KHISAMOV R.S.;GANIEV G.G.;GANIEV B.G.;SADREEV A.M.;NAGAEV M.G.;KHANNANOV R.G.;GIL'MUTDINOV N.A.
分类号 E21B43/20 主分类号 E21B43/20
代理机构 代理人
主权项
地址