Dagang oil factory in Hong Kong 8-72-4 wells won high yield
Chinese oil network news January 25th, Dagang Oilfield 8-72-1 well group in Hong Kong through a variety of means to streamline the adjustment wells benefit Hong Kong 8-72-4 awarded 29.67 tons of high yield, a good start for seepage field reconstruction.
Hong Kong 8-72-1 well group in Hong Kong East oil district two fault block, the main production two 9 sand body thickness of 10.1 meters, Hong Kong 8-72-1 wells in August 1991 Zhuanzhu, benefit Hong Kong 8-72-4 wells in June 2004 production of the wells layer. Before the reconfiguration of the seepage field, the sand body produced 4.2 tons of oil per day and 90.3% of the comprehensive water cut, 31 thousand tons of oil production in the well group and 35.8% of the production.
In order to further improve the recovery rate of this well group, the geological technician of this plant takes the mind and widening idea and takes the injection well as the center. Based on the dynamic and static data, the seepage field has been studied meticulously, and a feasible reconstruction scheme has been worked out. The plane direction increase of the implementation of the "fill line" measures, Hong Kong well 8-73-2 repair and improve water injection; longitudinal has formed on the water injection wells of oil layer, and the implementation of the "uniform streamline" measures: injection profile, 8-72-1 port 8-72-4 port wells benefit sand water drop. When the well was opened in January 9th, after 2 days' drainage period, the water content in the benefited well dropped to 54.1% and 40.1%, and the daily output of oil increased rapidly to 21 tons.
The injection wells of "planting, fill, uniform, change", "perfect streamline, benefit well, to yield a butterfly" target "soar". The high production of this well fully confirms the importance of reconstruction of seepage field, and further confirms the confidence of geological technicians for enhancing oil recovery in late high oilfield with high water cut.
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