Directional cracking device based on carbon dioxide phase change expansion and using method thereof
A technology of phase change expansion and carbon dioxide, which is applied in earth drilling, weapon accessories, blasting barrels, etc., can solve problems such as error-prone, impact on personal health and construction operations, and high requirements on the site environment, and achieve simple and easy-to-operate connections, uniform and Simultaneous heating, the effect of improving the working environment
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0032] This embodiment discloses a directional fracturing device based on carbon dioxide phase change expansion, its overall structure is as follows figure 1 with figure 2As shown, an outer casing 1 , a water storage pipe 2 , a liquid storage pipe 3 and a heating pipe 4 are sequentially sleeved from outside to inside, wherein the water storage pipe 2 , liquid storage pipe 3 and heating pipe 4 have the same length. The heating pipe 4 adopts a PVC pipe with a diameter of 20mm and a wall thickness of 2mm. It is arranged inside the liquid storage pipe 3 and the two are designed to be equal in length, so that the contact area between the heating pipe 4 and the liquid storage pipe 3 can be increased, so that it is distributed in the liquid storage pipe 3. The liquid carbon dioxid...
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