Manufacturing method for sample suitable for observation of unconventional oil and gas by ten-thousand-time scanning electron microscope

The invention provides a manufacturing method for a sample suitable for observation of unconventional oil and gas by a ten-thousand-time scanning electron microscope. The method comprises steps: a sample is cut into a preset shape; the surface of the sample is subjected to coarse grinding; the surface of the sample is subjected to fine grinding by utilization of aluminum oxide mortar and/or aluminum oxide power; the sample is subjected to rough polishing by utilization of an aluminum oxide suspension or a mixed suspension containing aluminum oxide and adamas; after the sample is cleaned, the sample is stuck onto a preset glass sheet; the sample is cut off and ground, and the thickness of the sample is decreased to10-15 microns; the sample is subjected to rough polishing by utilization of an aluminum oxide suspension or a mixed suspension containing aluminum oxide and adamas; the sample is subjected to fine polishing by utilization of an aluminum oxide suspension or a silicon oxide suspension; the surface of t