Method for filling refracturing plugging agent into single rock core
A technology of repeated fracturing and plugging agent, which is applied in the direction of earthwork drilling, production fluid, wellbore/well components, etc., and can solve the problems of high and stable production, reduced conductivity of hydraulic fractures, and low water absorption capacity of water injection wells, etc. , to achieve good injection effect and reduce plugging cost
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[0033] The method for injecting a single rock core of a kind of repetitive fracturing plugging agent that the present invention relates to, its specific steps are as follows:
[0034] (a) First, artificial fractures are performed on the single rock core;
[0035] (b) adding filler material to the gap;
[0036] (c) Then, inject the solution into the gap until the pressure is constant;
[0037] (d) Inject refracturing plugging agent into the fracture until the pressure is constant, and the whole injection process ends.
[0038] In the step (b), the filling material is quartz sand.
[0039] In the step (c), the solution is clear water.
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