Huabei oil field awakens the old reservoir of "sleeping"
China petroleum net news, as of August 1st, the North China oilfield oil production plant three, Hejian reservoir between 248X wells Nissan oil 18.5 tons, water content 8%, the same period of production of the 249X wells, Nissan oil 14.7 tons, the exploration and development effect is remarkable.
Hejian Dongying reservoir was put into development in 1979. It is one of the old reservoirs of the three oil production plant. With the passage of time, the old wells has become worse and worse, and limited measures to tap the potential of the main oil producing difficult and complex oil-water relation, evaluation of construction production with little success and many other problems in the development of. In order to further ensure the old yield, geological and technical personnel three production plants take abandonment and update new capacity combined with oil and water wells and Nii Beaisukesuke, to increase the use of oil and old oil recovery "of a node, an auxiliary, two" old potential measures, combined with the sedimentary facies determine the sand distribution range and direction of construction the old pattern of reservoir, ensure that the evaluation of residual oil potential and old precision.
Up to now, the plant has identified 11 development wells in the reservoir area, the north edge of the reservoir and the non well control area in the north of the reservoir. 5 wells have been put into operation and 1 wells have been evaluated.
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