China Petroleum network news, Huabei Oilfield two branch for high production liquid, high water well plugging water measures, as of August 25th, 29 wells have been selected to implement plugging water production measures.
According to the remaining oil distribution of the two branch company, the water flooded plane and water flooded horizon can be found out accurately. For the watered out layer with high yield, the layer is blocked by the lower packer; and the channel is blocked by injecting chemical plugging agent in the high water flooded channel of thick reservoir. Through these measures, the water production is restricted, and the purpose of eliminating the high water cut source from the well network and improving the effect of oilfield development is achieved.
In the aspect of technology, even the two branch adhere to the principle of a well - a method, combined with the crude oil physical characteristics, the water plugging technology of mechanical and chemical application card water flow direction, control the flow of water in the aquifer and change the water flooding water, improve water flooding efficiency.
In order to improve the mechanical measures of water effect, even two branch through wells, test set and other measures to implement the wellbore, and the bridge plugging plugging effect after verification, to ensure bridge sealing success fonseca. In addition, aiming at the blocking water of some casing wells, the plug with small diameter bridge plug is introduced and used to maximize the water plugging measures.
In order to improve the construction of water blocking in chemistry, technical personnel to fully optimize the construction process by using sand filling, top seal and other measures to ensure refined water plugging layer, water flooded layer can inject water plugging agent, and other production layer is not blocked agent pollution. During construction, the technicians monitor the injection pressure and lift up the situation to ensure sufficient plugging agent and effectively seal the water flooded layer.
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