China Petroleum network news, as of November 14th, Dagang Oilfield 8Es-L12 Zhuang well profile control has been 10 months, 1532 tons of oil increase in a single well. The daily production of this well is increased from 4.4 tons to 9.2 tons, which benefits from the scale application of such technologies as separate injection, profile control, layered measurement, adjustment and sealing test.
Since the beginning of this year, Dagang Oilfield offshore development company relying on water special rectification works to improve the block level contradiction as the focus, vigorously carry out the whole block profile control. Through the application of "oligomeric polyphenols were high temperature" and "oligomeric polyphenol + swellable particle system, Zhanghai 5 block and 8Es block Zhuang sea effect, cumulative oil 1839 tons, the total wells rate increased by 6.6%.
The effective way to improve the contradiction between layers is to realize separate injection and subdivision injection of high angle well. Offshore development company in less than 50 degrees inclination injection wells on the application of bridge subdivision injection technology than concentric injection wells 50 degrees, a cable intelligent test of injection technology in deviation, highlighting the injection technology, intelligent features, the formation of technical note series for different deviation. At the same time, the well testing and harmonic sealing of separate injection well can be done to improve the success rate of measurement and adjustment and the accuracy of water regulation.
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