Test method for cementation strength of oil well cement first cementation surface
A bonding strength, oil well cement technology, applied in the direction of strength characteristics, the use of stable tension/pressure test material strength, the preparation of test samples, etc. and other problems, to achieve the effect of simple and convenient sample preparation, simple and fast production, and true and reliable results
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[0030] Further illustrate the present invention below by accompanying drawing.
[0031] see figure 1 . (a): Apply mold release oil around the connecting part from the clamping end of the stretch rod to the arc. (b): Put the PVC1 pipe on the lower clamping end (the diameter of the PVC1 tube is larger than the diameter of the lower clamping end, and the height of the PVC1 tube is slightly higher than the transition arc connection between the lower clamping end and the parallel part). The annular space at the clamping end is injected with cement slurry, and cured at room temperature until initial setting. (c): Apply mold release oil on the exposed cement stone surface, fix the PVC2 pipe outside the parallel part, inject cement slurry into the annular space between the PVC2 pipe and the parallel part and cure until final setting. (d): Remove the PVC1 pipe and wrapped cement stone.
[0032] see figure 2 , figure 2 It is the fabricated simulated casing-cement sheath composit...
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