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The T302 well is located in the No. 3 block of Tahe Oilfield. After drilling in 1998, it has been mining Other oil layers in the Ordovician and Carboniferous. The production of the rear-rotating tube pump was forced to shut down in September 2006 due to insufficient liquid supply and high water content. At the beginning of 2007, the company conducted a general survey on the old wells. It believed that the initial production of the 4,027-,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, .
In the Tahe Oilfield, the hydraulic fracturing construction of the low-porosity and low-permeability hard-moving reserves of the Carboniferous sandstone is the first time. The company repeatedly demonstrated and perfected the plan, and applied sand fracturing to the T302 well on May 11. The maximum pressure is 80 MPa and the sanding capacity is 80 cubic meters. The monitoring shows that the length of the construction seam is 230.9 meters. After the sand washing and transfer work, the machine began to pump production on the 31st.
It is understood that the company will also transform the C44 reservoir in the S44 well.
For the first time, the sandstone fracturing in Tahe Oilfield was successfully reformed
Recently, after the Northwest Oilfield Branch rebuilt the Carboniferous reservoir of the T302 well without capacity, the daily output of crude oil has risen to about 20 tons, and the water content has dropped from over 90% to 10% and continues to decline.