| Summary: | The oilfields developed by our factory are mainly ultra-low permeability reservoirs, and the problems of non-injection and non-production are prominent. When conventional oil well fracturing is used, there are problems such as insufficient water injection energy, low oil increase rate after fracturing, and short validity period, and it is difficult to achieve benefit management. To this end, since 2013, while controlling the under-injected wells, the application of fracture network fracturing has been gradually increased, and a total of 116 wells have been fractured. The contribution reached 4.13%, and the annual mitigation comprehensive decrease contribution was 3.62%.
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