Title: Application of Technique of Selective Profile Control and Steam-channeling Plugging in Heavy-oil Thermal Recovery Wells
Abstract: Since strengthened steam huff and puff having been carried out for years in heavy oil reservoirs with shallow buried depth,loosened cementation,serious vertical and horizontal heterogeneity of Henan Oilfield,steam channeling has increasingly influenced the normal production and development.Heat resistant plugging agent with high strength was used to improve and adjust steam-injection profile by means of temporary plugging and protecting low permeability reservoirs and decreasing the permeability,by which the recovery rate was raised.After applying the technology low permeability reservoirs were protected and high permeability reservoirs were blocked effectively and better effects were gained.It can realize selective plugging in the reservoirs and provide reference for selective plugging in similar reservoirs.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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