The effect of post effect perforation injection in Dagang Oilfield is remarkable
Chinese oil network news as of January 9th, Dagang Oilfield three plants operating five actively explore new method for injection, 3 wells application after perforating technology, and achieved remarkable results, measures of early days increasing water injection capacity of 120 cubic meters, an average of 11.6 MPa water pressure drop.
The aftereffect perforation technology is to deepen the channel, enlarge the aperture and improve the perforation efficiency by adding the aftereffect body. After the introduction of technology in the oil production plant, the technicians think that the technology can solve the pollution near the well area to a certain extent, improve the physical properties of the reservoir near the well area, and realize the pressure drop and increase injection. It is preferred to carry out the pilot implementation of well 80-50 in Wang 27 block.
Officer 80-50 wells in May 5, 2017 measures wells measures before the pump pressure of 34.5 MPa, no water injection, water injection pressure of 26.5 MPa after injection, 40 cubic meters of oil well benefit officer 80-49 was significantly effective, oil production from 4.2 tons to 7.7 tons, the initial oil capacity of 3.5 tons, increased 355 tons of oil. Subsequently, Guan 76-18 well and guan80-10 well were successfully applied in Guan 104 fault block. The water injection pressure of 3 wells decreased from 34.1 MPa to 22.5 MPa, and the initial increase of water injection capacity was 120 cubic meters / day, with a daily injection of 80 cubic meters. The three future oil production plants will continue to expand the application scope of the technology in the less injection well area.
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