Method for slight fracture supporting, capable of increasing fracture stabilization period
A stable period, fracturing technology, applied in the direction of earthwork drilling, production fluid, wellbore/well components, etc., can solve the problem of obtaining effective support
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[0110] Well A, the fracturing section of the target layer is 3250.7-3261.5m, 10.8m / 1 layer; the lithology of the target layer is gray pebble-bearing fine sandstone, the core porosity is 4.2%-12.9%, the average is 9.73%, and the permeability is 0.1mD ~8.85mD, with an average of 3.73mD, which is a low porosity and ultra-low permeability reservoir; the pressure coefficient of the target layer is 1.0, and the formation temperature is 120°C, which belongs to normal temperature and pressure gas reservoirs. According to the interpretation of the stress profile, the average minimum principal stress of the target layer in this well is 44.1MPa, the minimum number average value of the minimum principal stress of the upper interlayer of the target layer is 47.5MPa, and the average minimum principal stress of the lower interlayer is 49.7MPa.
[0111] In order to evaluate the gas-bearing property and productivity of the sand group in the target layer, and to carry out the next exploration an...
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