Shale gas reservoirs have complex geology, posing many challenges for rock core drilling rig.
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Drilling hard brittle shale: High
hardness and brittleness cause core breakage, harming quality and increasing coring difficulty.
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High-pressure gas-bearing layers: Some layers have high gas pressure, risking blowouts. Rigs need top sealing and control abilities.
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Complex formation changes: Shale interleaves with other rocks. Sudden changes force frequent parameter adjustments, reducing efficiency.
To tackle these, we must improve rig performance and techniques to fit shale gas development’s complexity.

rock core drilling rig