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The "minimally invasive" operation of the supplementary layer in Dagang oil recovery three plant is effective

The "minimally invasive" operation of the supplementary layer in Dagang oil recovery three plant is effective

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  China Petroleum network news as of November 22nd, Dagang Oilfield three oil production plant six district 1608 block officer 1608-14 block of the implementation of supplementary layer "minimally invasive" operation, the cumulative increase of 335 tons of oil, "minimally invasive surgery" to see better results.

  After the commissioning of Guan 1608-14 well, the average daily oil production decreased from 53 tons to 18 tons at the beginning. Technicians have discovered that the Guan 1608 fault block is a narrow strip edge water reservoir. Since it was put into production in June this year, the edge water has been rapidly advancing from low position to high position.

  In view of this situation, technical personnel have drawn up the technical countermeasures of low amplification pressure difference, high position differential pressure control, and the promotion of side water to high position. Through fine stratigraphic correlation, it is found that there are 3 wells remaining in fault block and a set of potential layers remaining at the same time. Among them, Guan 1608-14 well has the highest structural position, and the test oil has been used to fill the well 1608 of the well Guan 1608. The oil production has reached 38 tons at the beginning of production, and the well spacing between Guan 1608-14 well and Guan 2 well is close, and the reservoir property is close. Therefore, technical personnel decided to give priority to open 41.6 meters /18 layer, and the implementation of pump upgrades, amplification, differential pressure production.

  After construction, Guan 1608-14 well is successfully opened. In November 5th, the daily production of liquid oil was 63 cubic meters, and the daily oil output reached 22 tons, reaching the expected effect.

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