Acid fracturing test method for fracture-vug type carbonate rock test piece
A carbonate rock, acid fracturing technology, applied in the direction of applying stable tension/pressure to test material strength, measuring devices, instruments, etc., can solve problems that limit the research progress of carbonate rock acid fracturing tests
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Embodiment 1
[0132] Such as Figure 2-4, in the embodiment of the present application, the regular-shaped carbonate rock block is divided into several smaller segmented blocks 1 by means of splitting, and holes are drilled or partially knocked on the segmented plane 3 of the segmented block 1. Chisel to make artificial hole 2, so as to simulate hydrochloric acid rock salt cave. The multiple split blocks 1 are rejoined and fixed according to the initial position, and the resulting spliced cracks 5 simulate natural cracks, and the gaps of the remaining spliced cracks 5 are filled with slaked lime slurry to form a crack filling layer 6 mainly composed of CaCO2. formed a complete splicing of fracture-vuggy carbonate rocks. Place the fracture-cavity carbonate rock splicing body in the center of the mold, and form the cement outer shell 7 by pouring cement slurry into the remaining space of the mold, and cure for more than 7 days to form the test piece. After the cement outer shell 7 is so...
Embodiment 2
[0134] Such as Figure 5-7 , in the embodiment of the present application, the regular-shaped carbonate rock block is divided into several smaller segmented blocks 1 by means of plane cutting, and holes are drilled or partially knocked on the segmented plane 3 of the segmented block 1. Chisel to make artificial hole 2, so as to simulate hydrochloric acid rock salt cave. The multiple split blocks 1 are rejoined and fixed according to the initial position, and the resulting spliced cracks 5 simulate natural cracks, and the gaps of the remaining spliced cracks 5 are filled with slaked lime slurry to form a crack filling layer 6 mainly composed of CaCO2. formed a complete splicing of fracture-vuggy carbonate rocks. Place the fracture-cavity carbonate rock splicing body in the center of the mold, and form the cement outer shell 7 by pouring cement slurry into the remaining space of the mold, and cure for more than 7 days to form the test piece. After the cement outer shell 7 ...
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