Method of increasing fracture network density for shale gas well fracturing improvement
A shale gas well and fracture network technology, which is applied to earthwork drilling, wellbore/well components, and production fluids, etc., can solve problems such as insufficient fracture network density, environmental pollution, and failure to consider the positive effects of fracturing fluids, and achieve improved The effect of channeling coefficient and increasing the density of fracture network
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[0036] In order to have a clearer understanding of the technical features, purpose and beneficial effects of the present invention, an embodiment of the present invention will be further described in conjunction with the accompanying drawings.
[0037] In order to verify the reliability of the present invention, the oxidation decomposition and dissolution experiments of shale components were carried out using fracturing fluid containing hydrogen peroxide, and the changes in parameters such as organic matter content, porosity, and fractures of shale before and after the chemical reaction were tested. The specific operation steps are as follows:
[0038] (1) Select Longmaxi Formation organic-rich shale to test parameters such as organic matter type, content, porosity, and fractures;
[0039] (2) Select the hydrogen peroxide concentration according to the organic matter type, content and mineral characteristics of the above-mentioned rock samples;
[0040] (3) inject the prepare...
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